How to remove factory programs on Android. Removing system APKs

When the need arises for excess free space on the built-in storage of the Android device, but everything that could be deleted has already been cleaned, the turn goes to system applications. In this material we will try to figure out which of them can be removed with virtually no consequences, and which are extremely undesirable.

Let's start with the fact that even if it is, in principle, possible to delete an application, we still lose the functionality that it provided. But whether this functionality is needed is up to each individual user to decide independently.

What can be removed without significant consequences.

DownloadProviderUi.apk– “Downloads” application.

DualClock.apk– a widget responsible for “Dual Clock”.

SamsungApps.apk– an application that is available in Samsung devices called “Samsung Apps”, that is, the Samsung application store.

YouTube.apk– an application responsible for launching and watching videos from the well-known YouTube. You can delete it, accordingly, if you do not watch videos from this resource.

VpnServices.apk– VPN connection service, if you don’t use VPN, you can safely delete it.

PicoTts.apk– service for translating text into voice speech, needed for visually impaired users.

TtsService. apk– a service related to PicoTts.apk.

TwWallpaperChooser. apk- service standard wallpaper on Android devices.

Memo.apk– a standard application for taking notes. You can delete it, because its functionality is quite limited; it can be easily replaced with third-party programs, such as Evernote.

Maps.apk– maps from Google. In general, they are used quite often, but can be replaced with something similar software, for example Navitel.

GlobalSearch.apk– application for searching via Google.

What can be deleted, but with certain reservations.

AxT9IME.apk – standard keyboard on Samsung devices. When removed, naturally, a replacement is necessary (of course, you can use the device without an on-screen keyboard, but entering text will be impossible). When replacing, for example, with Swype or Go Keyboard, or with other on-screen keyboards, you can safely remove it.

Swype.apk – screen keyboard, like AxT9IME.apk.

Browser.apk– a standard Android browser, an application for viewing pages on the Internet. You can remove it, but you need to replace it if you use the Internet. Third party browsers like Opera Mini Opera Mobile or Firefox are fine.

Camera.apk– standard photo/video camera in Android devices. You can remove it, but you need to replace it if you use the camera. An alternative is, for example, LG Camera.

Email.apk– standard Android POP/IMAP email client. Can be removed if not needed.

FMRadio.apk– a standard application for listening to FM radio. You need a replacement if you plan to listen to the radio, otherwise you can safely remove it.

SnsAccount.apk– synchronizes records from social networks facebook and twitter. Replacement possible alternative clients for social networks, of which there are a great many.

Stk.apk– SIM menu of the cellular operator card.

UserDictionaryProvider.apk– standard for Android custom a dictionary for predicting words when typing, into which all previously unknown words are automatically added. In general, you can remove it, but only when used third party keyboard, if the standard one is used, it cannot be deleted.

MyFiles.apk– standard file manager Android. You can delete it if you have a third-party file manager installed, otherwise using the device without an explorer is quite problematic.

Calendar.apk- a standard calendar for Android devices, you can delete it, but the benefits of such “cleaning” are doubtful.

DeskClock.apk– alarm clock application. Can be replaced third party software or delete it if it is not needed.

TouchWiz30Launcher.apk – graphical shell user interface on devices from Samsung (launcher). You can’t just delete it directly, otherwise the system will stop working, but there is a way. Download the Go Launcher Ex application, install it and transfer it to the folder /system, now TouchWiz30Launcher.apk can be deleted. If you do wipe, then first you need to go to the folder data/data/com.gau.golauncherex/lib and copy absolutely all files with the .so extension to the directory system/lib. After perform wipe we wait full load Android devices and press the soft key (to call up the Go Launcher Ex menu), after which we can see a terribly “slow” interface. Go to “Menu” -> “Settings” -> “Applications” -> Go Launcher Ex, clear the data and cache. Now everything should work fine.

Good day!
There are those among us for whom a smartphone is handy tool. No more and no less. And there are those for whom there is no greater joy than picking at the “insides” of their pet and customizing something. It is precisely for such people that the following material is intended.
The material is dedicated to optimizing your device. With its help, you can not only free up space in internal memory device, but also to unload RAM. Have you guessed it yet? Yes, we will talk specifically about removing standard programs.
The article has already described how to do this. And I want to tell you exactly which files can be painlessly deleted from the system.
The fact is that many programs built into the OS are not useful to most users and only waste space in the device’s memory, thereby creating an unnecessary load on the processor and RAM. Therefore, the files of those programs that you do not need should be deleted.
The easiest way to do this is using the Root Explorer program.
After downloading the program, run it and enter the System item. Having entered it, we need to find a directory with named App. This is where installed application files are stored.

REMEMBER! EVERYTHING YOU DO IS SOLELY AT YOUR OWN RISK!!! BY REMOVING SOME PROGRAMS, YOU CAN RUIN YOUR DEVICE!!!

The list below was not created by me, but having not found similar material in the community archives, I decided that this information will be very useful to users.

The list items are labeled "YES" and "NO".

Yes means that the program can be safely removed, No means that the program must not be touched under any circumstances! She is important for normal functioning devices.

Please read the program description carefully before uninstalling it!!!

Well, and, in fact, the list itself:

• AccountAndSyncSettings.apk -- NO, synchronization settings, required application. This application is responsible not only for synchronizing contacts and calendar, but also everything else related to the account Google entry. Even if you don't sync anything, you shouldn't delete it.
• AngryGPS.apk is lbstestmode in some Samsung firmware. Opens with the code *#*#3214789650#*#* (quickly drains the battery).
• ApplicationsProvider.apk -- NO, required for installing and uninstalling programs.
• audioTuning.apk -- Yes, the program lowers the sound volume after a while on Samsung (absolutely useless).
• AxT9IME.apk -- YES, this is a standard Samsung keyboard. It can be removed if you have a third-party keyboard (for example SWYPE or Smart Keyboard).
• BadgeProvider.apk -- NO, the application is required for SMS and E-mail. Removal will lead to the crash of the programs responsible for the operation Email and text messages.
• BlueSea.apk -- YES, Blue Sea Live Wallpaper in some Android firmware 3.X
• Bluetooth.apk -- NO, although this apk is responsible for printing via Bluetooth, and not for the operation of the Bluetooth network itself, problems with BT may occur on some models.
• BluetoothOPP.apk -- NO, this application organizes file transfer between devices. If deleted, you will lose the ability to send and receive files, as well as work with a Bluetooth headset.
• BluetoothServices.apk -- NO, main bluetooth service. Leave this file if you are going to use Bluetooth. Uninstallation will result in all Bluetooth applications not working.
• BluetoothTestMode.apk -- YES, this apk is designed to test your Bluetooth, which is available via service code*#*#197328640#*#*. Deletion is possible, but in some cases the system tests BT to determine the duration of the data transfer. After deletion, there may be problems when transferring files, attenuation when playing music through a BT headset, etc.
• Browser.apk -- NO, a standard browser, an application responsible for viewing web pages. Can be removed if available third party browser(Opera, Firefox or other browsers for Android), but in some cases it interferes with automatic APN configuration.
• BuddiesNOw.apk -- YES, this is just a widget that is part of the TouchWiz shell. If you don't use it, delete it.
• Calendar.apk - YES. The "calendar" application in some firmwares.
• CalendarProvider.apk - Synchronizes the calendar on your phone with your Google account, and is also responsible for notifications.
• CallSetting.apk -- NO, do you even use your phone to make calls? If yes, then leave it. This is the basic application needed to change call settings (call waiting, answering, etc.).
• Camera.apk -- NO, this application is responsible for the camera. Delete only if there is an alternative (you won’t find it in the Market).
• CameraFirmware.apk -- NO, this is the macro program (ROM) of the camera itself. Without this program, camera.apk becomes useless.
• CertInstaller.apk -- NO, installs certificates for applications. I believe that without it you will not be able to assign rights to programs and access certain files and directories. I guess there will be problems with Root too. In short, don't delete.
• ClockPackage.apk - YES, alarm clock, timer, world time and clock. If you do not use alternatives, it is advisable to leave them, because... Everything works stably and runs from one apk.
• Contacts.apk -- NO, is responsible for managing contacts (contacts, groups, call history, etc.). If deleted, you will have to dial the number manually each time.
• ContactsProvider.apk -- NO, synchronization of contacts with a Google account. Very useful feature. If you haven't tried it yet, I recommend it. Theoretically, you can remove it, but do not forget about the functions that you will lose.
• CSC.apk -- NO. if deleted, will violate CSC. Theoretically, can be removed after the first successful download, but if you ever have to do an XP (factory reset), the phone may not boot.
• DataCreate.apk - NO.
• DefaultContainerService.apk -- NO. Unpacks applications for installation
• DeskClock.apk - Yes. Standard application"Clock" (alarm clock).
• DialertabActivity.apk -- NO. Dialer. Even if all your contacts are already saved, you will not be able to make a call without this application.
• Divx.apk - YES. This is some kind of licensing information for the video player. I don't watch movies on my phone very often, but after deleting this file, there were no problems with playback. If you removed it and something stopped working, please let me know in the comments.
• Dlna.apk - NO. allshare service. May affect the operation of BT.
• DownloadProvider.apk - NO. Provides downloading files manually and from Marekt.
• DownloadProviderUi.apk --Yes. But not advisable. Downloads application.
• DrmProvider.apk -- NO/Yes. You can delete it. This will make it impossible to play DRM protected files such as ringtones and message sounds. I think that if you don't have to play protected files, then in principle you can remove it. However, please note that you will no longer be able to play any DRM-protected file. This apk takes up a lot of memory and always runs in the background. This is one of the “badest” apk, which does not provide any functionality, but simply protects against editing and copying standard sounds Samsung. User experience (two posts).
• DrmUA.apk -- NO, see above.
• DualClock.apk - YES. Dual clock widget. If you don't use it, feel free to delete it.
• Email.apk - YES. Mail client POP/IMAP. If not needed, delete. Doesn't affect Gmail.
• EnhancedGoogleSearchProvider.apk -- YES. Allows you to call up the search window by pressing the “Menu” button. I usually don't delete it.
• FactoryTest.apk - YES. Phone test. You can safely delete it. If you have ever run autostarts, you will understand how many resources this apk consumes during certain actions. Attention! There have been cases when, after removal this file The Radio application did not work correctly.
• FMRadio.apk - YES. FM radio player.
• Gallery3D.apk - when you delete it, the gallery itself is deleted and the ability to use the standard video player in Explorer in the “open with” menu. Consumes the battery. This is the same fashionable 3D gallery. If deleted, you will not be able to quickly access the photos if there is no alternative. To replace it, I would recommend QuickPic, it gets the job done, is faster and does not take up as much memory (however, it is not as beautiful as Gallery 3D).
• Geniewidget.apk - YES. Google widget - weather and news, deleted without consequences.
• GlobalSearch.apk - YES. This search service our phone. The EnhancedGoogleSearchProvider works through it.
• Gmail.apk - YES. Can be removed if not used Google mail, however, deletion will usually result in a violation of the Talk.apk application. Can be reinstalled from the Market.
• GmailProvider.apk - YES. see Gmail.
• GoogleApps.apk - NO, Basic file Google applications Required for Android Market.
• GoogleBackupTransport.apk – NO, Provides synchronization of settings and applications with your Google account.
• GoogleCheckin.apk – NO, Market Checking Service.
• GoogleContactsSyncAdapter.apk - YES. Sync contacts with Google account. Can be deleted if there is no need to synchronize contacts.
• GooglePartnerSetup.apk - NO. Part of the Configuration Wizard
• GoogleServicesFramework.apk -- NO. Enables Google services
• GoogleSearch.apk - YES. Google search widget.
• GoogleSettingsProvider.apk - NO. Google Settings
• GoogleSubscribedFeedsProvider.apk -- NO. Required for Android Market. Synchronizing updates?
• GpsSetup2.apk -- NO. Responsible for GPS settings.
• gtalkservice.apk -- NO. Deletion will result in the Market becoming unusable. You can delete GTalk.
• HTMLViewer.apk - NO. May cause Opera Mini to not work.
• HwCodec.apk - ?. Codecs for playback?
• IcsService.apk - ?
• InfoAlarm.apk - YES. Daily briefing widget. If not needed, delete.
• InputEventApp.apk - NO.
• jobManager.apk -- NO, Task Manager
• Layar-samsung.apk - YES. Layar augmented reality browser. It looks impressive in reviews, but I have never used it in reality.
• LGSetupWizard.apk -- Not recommended. Automatic setup Internet, mms, etc. at LG.
• LbsTestMode.apk - YES. GPS testing mode. Launched via code *#*#197328640#*#*.
• lcdtest.apk - YES. Removing it will cause the display to stop turning off while locked. This can be fixed by installing individual parts, but it is better to leave it and forget about it.
• LogsProvider.apk - NO. Many programs will stop responding and forcefully close.
• Maps.apk - YES. apk file Google Maps. If you don't use it, you can delete it. Although it is quite a useful thing, because it supports GPS.
• MarketUpdater.apk - YES. Automatic update Software and the Market itself. If not needed, you can delete it.
• MediaProvider.apk - NO. Required to access media files and ringtones.
• MediaUploader.apk - YES. Responsible for uploading images to picassa (or facebook as a rule). You can delete it if not needed.
• Memo.apk - YES. Once deleted, you will not be able to create notes.
• Mms.apk - YES. SMS service and mms. Can be replaced with an alternative. However, some alternative applications, for example Pansi, cannot receive without mms.apk mms messages, but it accepts SMS. But HandcetSMS does this without problems with the mms.apk removed.
• MobileTrackerEngineTwo.apk - YES. This application allows you to enable tracking of your phone's movements. This function designed to help you return your phone in case of theft. The service is constantly hanging in the memory and consumes the battery well.
• MobileTrackerUI.apk - YES. See above.
• MtpApplication.apk - YES. Synchronization with Kies. If you don't use it, you can delete it. Attention! After removal, problems were noticed with connecting to a PC on the GalaxyTab.
• MusicPlayer.apk - YES. This music player. Can be replaced with another, more functional one. I would even advise you to remove it, because... when using multiple audio players, it is possible unstable work both, as well as simultaneously playing different songs via BT.
• MyFiles.apk - YES. Standard browser files from Samsung. It can be replaced with a more functional one, but it is suitable for everyday use.
• NetworkLocation.apk - YES. Semi-accurate GPS simulation. The program uses the cell (sector on the BS) on which the phone is located to determine the location without using GPS receiver, thereby saving battery consumption. If deleted, you will need to enter information about your location manually in programs such as weather forecasts, etc., or turn on the GPS receiver.
• OtaProvisioningService.apk - YES. This application can be deleted if you do not use over-the-air updates. On Samsung phones can be used to update programs from SamsungAppStore. On HTC is better do not delete, because The manufacturer practices software updates using this method.
• PackageInstaller.apk - NO.
• PCSync.apk - Yes. An application from the manufacturer for synchronization with the BB in some devices.
• Personalization.apk - NO.
• Phone.apk - NO. An application responsible for the telephone part. After deletion, you cannot dial a number, view calls, etc.
• PhoneCrashNOtifier.apk -- ?.
• PhoneErrService.apk - NO.
• Phone_Util.apk -- NO.
• PicoTts.apk - YES. This is part of a text-to-speech (not speech-to-text) program. An application for people who are visually impaired. Also part of Google GPS that can dictate "turn right" or "left". Does not affect navigation functionality. After removal, it is advisable to also get rid of TtsService.apk.
• Preconfig.apk - NO.
• protips.apk - YES. Widget "help in using android"
• SamsungApps.apk - YES. Application Samsung apps. If you delete, you can usually delete signin.apk. Deleting it may affect music synchronization via Kies, but you will be able to update the firmware. After removal, Samsung and touchwiz widgets remain functional.
• SamsungAppsUNAService.apk - Yes, if SamsungApps is removed.
• SamsungWidget_CalendarClock.apk - YES. Calendar clock widget.
• SamsungWidget_FeedAndUpdate.apk - YES. Feeds and Updates widget.
• SamsungWidget_StockClock.apk - YES. Another Stock clock widget.
• SamsungWidget_WeatherClock.apk - YES. Weather clock widget.
• ScreenCaptureService.apk -- Yes. Application for taking screenshots.
• SecDownloadProvider.apk - NO. I understand this is something related to the Market. Leave as is.
• serviceModeApp.apk -- NO. The application is required to process service codes and tasks.
• Settings.apk - NO. Phone settings menu.
• SettingsProvider.apk -- NO. Receives and applies settings received in a text or service message. It's better to leave it, because... some wrote about programs “crashing” after removal.
• SetupWizard.apk -- NO. Theoretically, it can be deleted after the first successful boot, but difficulties may arise after XP.
• shutdown.apk - NO. Informs when the battery is low.
• signin.apk - YES. See SamsungApps.apk
• SisoDrmProvider.apk - NO. Required for DRM to work. If you do without DRMUA and DRMService, perhaps this file can be deleted. I couldn't beat him on my phone.
• SnsAccount.apk - YES. Synchronizes posts from facebook and twitter.
• SnsProvider.apk - YES. See above.
• SoundPlayer.apk - YES. Do not confuse with MusicPlayer.apk. This application plays sounds and ringtones. It can be removed, but you will have some minor limitations as it is slightly faster and more fit for purpose than MusicPlayer or a third party player. I advise you to leave it.
• Stk.apk - NO. An application to display the operator's menu, which usually offers horoscopes, news, jokes, music, etc. for money. If not needed, delete. When disconnected in the same session, all sim cards, gprs may not work until you reboot the device, after which everything works again. It is advisable to leave it, because After XP, problems may arise with auto-configuring APN and MMS.
• Street.apk - YES. Street View for Google Maps. Deletion will not affect Google work Maps, you simply won’t be able to see street photos.
• Swype.apk - YES. Swype keyboard, excellent alternative Samsung keyboard. It does its job well, predicts the text, but is not intuitive for beginners.
• syncmldm.apk - YES. Device Manager. I read about it somewhere, but I don’t quite remember what it is. I accidentally deleted it instead of syncmlds.apk, but everything works.
• syncmlds.apk - YES. Synchronization settings, which are accessible from the menu. If you don't need them, you can delete them.
• Talk.apk - YES. Google Talk. There has been some controversy regarding dependencies this application. It was about the fact that when Google removal Talk Gmail or Market stopped working, many said that this was not the case. So be careful here.
• TalkProvider.apk - YES. See above.
• TelephonyProvider.apk - NO.
• thinkdroid.apk - YES. Program for working with microsoft documents office. Deletion will result in the loss of the ability to open .doc, .xls and .pps files.
• TouchWiz30Launcher.apk -- NO. Even if you use a third party work environment, such as Zeam or LauncherPro, removing TouchWiz is highly not recommended. In the case of XP, you may lose the functionality of the phone.
• TouchWizCalculator.apk - YES. Calculator app, good and functional application, although there are alternatives.
• TouchWizCalendar.apk - YES. Calendar.
• TouchWizCalendarProvider.apk - NO. Keeps the Calendar app in sync with the time, date, and phone settings.
• TtsService.apk - YES. See PicoTts.apk
• TwWallpaperChooser.apk - YES. Allows you to select wallpaper. If you have standard gallery or QuickPic, you can set wallpaper through them. However, you will not be able to select the wallpapers that are inside this apk.
• UNAService.apk - YES. Samsung app Social Hub.
• UserDictionaryProvider.apk - NO. Custom dictionary to predict words when typing. All previously unknown words, names, nicknames, etc. are added here. Theoretically, you can remove it if the standard keyboard is not needed. Without this program standard Android keyboard does not work, and general failures are also possible!
• Vending.apk -- NO. Part of the Android Market. In fact, this is the Market.
• VideoPlayer.apk - YES. Video player. At your discretion.
• VoiceDialer.apk - YES. Allows you to carry out speed dial voice. You dictate the name, and the phone dials the number itself. This does not always work and only when the Internet is turned on. As far as I understand, the program sends a request to Google server processed voice request, and Google returns the completed word. Remove if you don't use it.
• VoiceSearch.apk - --Yes. Voice search Google.
• VoiceRecorder.apk - YES. Allows you to record voice. Although the quality is not great, it is quite sufficient for voice notes.
• VpnServices.apk - YES. VPN for Android. If not needed, you can delete it.
• WapService.apk - ? Responsible for the operation of WAP(?)
• wipereceiver.apk - YES. Do you remember mobile tracker? This application is designed to erase information from your phone remotely if it is stolen.
• WlanTest.apk - YES. Testing settings wireless access, available through the same test menu. Required for OTA updates.
• WriteandGo.apk - YES. Write and Go app on Samsung phones.
• wssomacp.apk -- NO. Required for SMS to work.
• wssyncmlnps.apk -- YES. Over The Air Programming. This is necessary so that your provider can, if necessary, send you or change settings via service messages. (not used by us). Can be deleted. Option 2: Sync with Samsung Kies.
• YouTube.apk - YES. Because the platform has limitations on Flash playback, this application allows you to get full access to youtube, instead of using it through a browser. You can delete it if you don’t watch videos online.

There are built-in applications that we do not use, and these applications and services only take up space and eat up RAM; they can be deleted.
In order to remove some of them, we will need Root and need to install the Root Browser program or . Next you should follow the path" / system/app/ ", here are the very built-in applications that cannot be deleted. Sometimes this folder needs to be remounted for reading and writing since it can be read-only. To do this, for example, in RootExplorer, press the button labeled “ Mount R/W", if it says " Mount R/O"then you don’t need to click it, the folder is already writable.

We mark what we need to delete and, just in case, transfer these files to a previously prepared folder on the SD card. We transfer, and do not delete, so that everything can be returned back, otherwise you never know. We reboot the device and they are gone. And yet, this folder also contains system applications necessary for the functioning of Android; when they are deleted, the tablet or phone may not boot, so we delete only what we know for sure. When deleting an application or service, you should also delete its NameProgram.odex, if the firmware is deodexed, if deodexed, then these files will not exist.

Removing Android system applications using SystemApp Remover

FAQ on removing built-in applications

1. Q: Where are the stock programs and how to remove them?
A: Stock (standard or factory) programs are located in / system/app.
You can open this directory using , Root Browser and similar ones, as well as Titanium Backup if you have ROOT rights and mount it in r/w. The order and names may differ (Titanium Backup displays program names instead of .apk files). Remember that it is not necessary to immediately delete the application; you can rename it or freeze it using the Titanium Backup program. In this case, the phone will not recognize the renamed file as an application, and you will be able to restore/unfreeze it if necessary.

2. Q: What programs can be removed?
A: Each user must decide for himself which system applications he doesn’t need it, then you need to see if there might be consequences from deleting applications you don’t need, if there are no consequences (consequences), then you can safely delete these applications. And if there are consequences, for example, some programs have dependencies, then you need to think about whether to remove them or not, for example, you don’t need Google maps and you will never use system and third party programs that use Google maps data, which means you can safely delete these maps.

3. Q: Where are the files left from deleted applications and do they need to be deleted?
A: Parts of programs may remain in data/data, data/dalvik-cache, (system/lib- it is advisable not to touch, because there are dependencies). File names do not always match the application name. Be careful. To find out the “internal” name of the program, you need to go to the folder where it is located with the program, then short tap on the apk file - click view and look at the manifest. After removal, it is advisable to do a Hard reset. If you do not plan to do a Hard reset after removing system programs, then you need to remove the “tails” from the specified partitions of the system, but I would not recommend doing this method of removal, it is difficult and you need to delve into the name of the programs. In the above sections, programs are usually called differently than in system/app, it is better to make it simpler, remove everything unnecessary from system/app and then do Hard reset. And that's all, after Hard reset if the program is not in system/app, she obviously won’t put her data in the section data. But unfortunately this easy cleaning will not affect system/lib. The "tails" will remain in this section. However, many people, even with the complex removal method indicated in the mini-fact, do not bother system/lib. Since this is a really dangerous folder, it is correctly written there that it is advisable not to touch it, lib There are almost none with an explicit name that can be deleted. Explicit name and association with remote programs from system/app, have only two, these are keyboard libraries.
Let me explain the “danger” of the folder system/lib, after removing some lib.so, if you reboot the phone or do a Hard reset, the system (android) will not boot. On the phone screen you will see a cyclic reboot ( constant reboot). You can get out of this reboot either by re-flashing the phone, or by recovery mode using update.zip. This archive should contain a remote library and scripts with commands on where to place this library. That's the whole danger of the folder system/lib

4. Q: Is it possible to delete standard Google applications; will this affect the operation of the device?
A: Applications (Maps, Gmail, Gtalk, etc.) are possible. Services are undesirable, since if deleted, all Google services and applications will stop working, and it is also possible that constant errors on the device.

5. Q: Is it possible to remove standard Google applications (Navigation, Addresses, Street View) separately from the Maps application?
A: Street View (Street.apk) is possible, but the others are not, since they are part of the Maps application (Maps.apk).

6. Q: Is it necessary to delete the .odex files of the program along with the .apk files?
A: Yes. These files are part of the application of the same name.

7. Q: Where can I get the standard .apk file from any firmware?
A: Unpack the native firmware and pull out the necessary file.

8. Q: I removed the standard keyboard, after which SWYPE does not work. What to do?
A: Make SWYPE system. Video instructions for installing Russian Swype:

9. Q: I installed a third-party dialer and when a call is missed, 2 notifications appear in the notification panel: from the standard one and from the third-party one.
A: Solution: make a third-party dialer a system one (I did this through Titanium Backup, but I suspect that it’s easy enough to transfer the apk to the system folder).

10. Q: I can’t delete some Google applications; deleted from folder system/app, but they still work.
A: Perhaps these applications are located in the folder data/app and you need to remove them from there as well.

11. Q: How to restore system applications?
A: If you decide to restore system program, which was previously deleted (without backing up), first find the necessary .apk(if necessary .odex) files (preferably from the firmware version installed on the device). Download the firmware, unzip it and pull it out necessary files from file system.rfs(in some firmware it may be called factoryfs.img and have a different extension). Through (or another file manager with root access) drop these files into the folder system/app and set permissions rw-r--r--;

How to change permissions:
1. Long tap by apk of the application;
2. Click Permissions

Reboot your device. Once downloaded, this application should appear. Note: To install some applications (for example, Google Play Market) you need to upload the apk and change permissions not only in system/app, but also in data/app.

12. Q: Is it possible to remove the stock launcher?
A: It is possible, but only if you have a stable third-party launcher, which it is advisable to make a system application. But it should be noted that not all standard widgets can work on a third-party launcher.

13. Q: After deleting applications, gray shortcuts remain in the menu remote applications. How to remove them?
A: You should clear the launcher data through Settings ( Settings - Applications - Launcher - Clear data) or via Titanium Backup. It should be taken into account that as a result of this all custom settings desktop (widgets, etc.).

14. Q: How to remove standard lockscreen?
A: Removing it is very problematic (to do this you need to edit several system apk), but you can disable it through Settings - Lock Screen. Or via ShutdownApp (service code *#7594# ; Please note that in this case the reboot menu will also disappear).

15. Q: How can I see running background processes?
A: Enable CPU Usage Data Layer ( Settings- Developer Options- Display CPU usage).

Description of stock Android programs. What can be deleted and what cannot.

AccountAndSyncSettings.apk-- NO. synchronization parameters, required application. This application is responsible not only for synchronizing contacts and calendar, but also everything else associated with your Google account. Even if you don't sync anything, you shouldn't delete it.
AccuWeatherDaemonService.apk (AccuweatherDaemon.apk(4.x.x)) -- YES. "Demon" in background automatically updates the weather on the lock screen and in the weather widget.
AccuweatherWidget.apk(4.x.x) ( AccuweatherWidget_Main.apk(4.x.x)) -- YES. Weather informer from Samsung + widget for it.
AllShareCastWidget.apk (4.1.1) (AllshareMediaServer.apk (4.1.1); AllSharePlay.apk (4.1.1); AllshareService.apk(4.1.1)) -- YES. AllShare service (Distributes installed software and media content).
AnalogClock.apk (AnalogClockSimple.apk(4.1.1)) -- YES. Analog clock widget.
AngryGPS.apk - ?, this is lbstestmode in some Samsung firmwares. Opens with the code *#*#3214789650#*#* (quickly drains the battery).
ApplicationsProvider.apk-- NO. Required for installing and uninstalling programs.
audioTuning.apk-- Yes. The program lowers the sound volume after a while on Samsung (absolutely useless).
Aurora.apk-- YES. Live wallpaper.
AxT9IME.apk-- YES. Standard Samsung keyboard. It can be removed if you have a third-party keyboard (for example SWYPE or Smart Keyboard).
BackupRestoreConfirmation.apk(4.x.x) -- NO. System component to visualize backup confirmation or rollback to backup.
BadgeProvider.apk-- NO. The application is required for SMS and E-mail. Deletion will cause programs responsible for email and text messages to crash.
BestGroupPose.apk(4.1.1) -- NO. An additional library for the stock camera application for creating group photos (removing the component may cause the main application to malfunction).
BlueSea.apk - YES. Live wallpaper "Blue Sea".
BluetoothAvrcp.apk-- NO. The application is required to support Bluetooth profiles: AVRCP, HID, etc. control the player from a BT headset, stop, rewind, volume, etc.
BluetoothOpp.apk (Bluetooth.apk(4.x.x)) -- NO. This application organizes file transfer between devices. If deleted, you will lose the ability to send and receive files, as well as work with a Bluetooth headset.
BluetoothServices.apk (BrcmBluetoothServices.apk; BluetoothMap.apk(4.x.x)) -- NO. Basic Bluetooth service. Leave this file if you are going to use Bluetooth. Uninstallation will result in all Bluetooth applications not working.
BluetoothTestMode.apk (BluetoothTest.apk(4.x.x)) -- YES. This apk is designed to test your Bluetooth, which is available through the service code *#*#197328640#*#*. Deletion is possible, but in some cases the system tests BT to determine the duration of the data transfer. After deletion, there may be problems when transferring files, attenuation when playing music through a BT headset, etc.
BroadcomMEMSService.apk(4.x.x) -- YES. The component is responsible for configuring and operating the Broadcom chip on some modifications of the SGSIII phone in which the GPS receiver chip is from the manufacturer of radio-electronic communication components of the same name.
Browser.apk (SecBrowser.apk(4.x.x)) -- YES. a standard browser, an application responsible for viewing web pages. It can be removed if you have a third-party browser (Opera, Firefox or other browsers for Android), but in some cases it interferes with automatic APN configuration.
BuddiesNOw.apk (BuddiesNow.apk) -- YES. A widget that is part of the TouchWiz shell. If you don't use it, delete it.
Calendar.apk (SecCalendar.apk(4.x.x)) -- YES. The "calendar" application in some firmwares.
CalendarProvider.apk (SecCalendarProvider.apk(4.x.x)) --YES. Synchronizes the calendar on your phone with your Google account, and is also responsible for notifications.
CallSetting.apk-- NO. Basic application, necessary to change call settings (call waiting, answer, etc.).
Camera.apk-- NO. this application is responsible for the camera. Delete only if there is an alternative.
CameraFirmware.apk-- NO. This is the macro program (ROM) of the camera itself. Without this program, Camera.apk becomes useless.
CapabilityManagerService.apk(4.x.x) -- NO. The Application Compatibility Manager apparently starts every time the device boots and checks the installed software for compatibility with the operating system.
ChatON_MARKET.apk(4.1.1) --YES. Social chat from Samsung.
CertInstaller.apk-- NO. installs certificates for applications. I believe that without it you will not be able to assign rights to programs and gain access to certain files and directories. I guess there will be problems with Root too. In short, don't delete.
ChocoEUKor.apk--YES. Built-in system font.
Chrome.apk(4.1.1) --YES. Google Browser Chrome.
ChromeBookmarksSyncAdapter.apk(4.x.x) --YES. Synchronization of bookmarks of the built-in browser with the Google service.
ClipboardSaveService.apk(4.x.x) --YES. Extra menu with multi clipboard text information.
ClockPackage.apk-- YES. Alarm, timer, world time and clock. If you do not use alternatives, it is advisable to leave them, because... Everything works stably and runs from one apk.
CloudAgent.apk(4.1.1) -- YES. Service Component cloud application(Connected with DropBox work and clouds from Samsung).
Contacts.apk-- NO. Responsible for managing contacts (contacts, groups, call history, etc.). If deleted, you will have to dial the number manually each time.
ContactsProvider.apk-- NO. Gives third-party applications the ability to access your contacts on the device.
CoolEUKor.apk-- YES. Built-in system font.
CSC.apk-- NO. If deleted, it will violate CSC. Theoretically, it can be deleted after the first successful boot, but if you ever have to do an XP (factory reset), the phone may not boot.
DataCreate.apk-- NO. Apparently, this utility artificially generates traffic to determine bandwidth between data transfer devices.
Days.apk-- YES. Daily tasks widget.
DeepSea.apk(4.1.1) -- YES. Live wallpaper "Deep Sea".
DefaultContainerService.apk-- NO. Unpacks applications for installation
DeskClock.apk- Yes. Standard Clock application (alarm clock).
DialertabActivity.apk-- NO. Dialer. Even if all your contacts are already saved, you will not be able to make a call without this application.
DigitalClock.apk-- YES. Digital clock widget.
Divx.apk-- YES. This is some kind of licensing information for the video player. I don't watch movies on my phone very often, but after deleting this file, there were no problems with playback. If you removed it and something stopped working, please let me know in the comments.
Dlna.apk-- NO. allshare service. May affect the operation of BT.
DownloadProvider.apk (SecDownloadProvider.apk(4.x.x)) -- NO. Provides downloading files manually and from the Market.
DownloadProviderUi.apk (SecDownloadProviderUi.apk(4.x.x)) --Yes. The application shell for downloading from the stock browser.
DrmProvider.apk-- NO. You can delete it. This will make it impossible to play DRM protected files such as ringtones and message sounds. I think that if you don't have to play protected files, then in principle you can remove it. However, please note that you will no longer be able to play any DRM-protected file. This apk takes up a lot of memory and always runs in the background. This is one of the “badest” apk files, which does not provide any functionality, but simply protects standard ones from editing and copying Samsung sounds. User experience (two posts).
DrmUA.apk-- NO. see above.
Dropbox.apk(4.1.1) (DropboxOOBE.apk (4.1.1)) --Yes. Dropbox is a data storage service.
DSMForwarding.apk--Yes. Notification about SIM change.
DSMLawmo.apk--Yes. Lawmo is a Lock and Wipe Management Object, i.e. Remote device locking and erasing information via Samsung Dive.
DualClock.apk--Yes. "Double clock" widget. If you don't use it, feel free to delete it.
EdmVpnServices.apk--Yes. Judging by the name, it clearly belongs to a VPN service.
Email.apk-- YES. POP/IMAP mail client. If not needed, delete. On Gmail work does not affect.
EmailWidget.apk-- YES. Mail widget.
Encrypt.apk-- YES. Encryption of the memory card (device) so that it cannot be read on another device.
EnhancedGoogleSearchProvider.apk-- YES. Allows you to call up the search window by pressing the “Menu” button. I usually don't delete it.
Exchange.apk(4.x.x) -- YES. MS Exchange client. If used corporate mail and the scheduler cannot be deleted.
FaceLock.apk(4.x.x) -- YES. Function to detect your face for screen locker.
FactoryTest.apk-- YES. Phone test (*#0*#). You can safely delete it. If you have ever run autostarts, you will understand how many resources this apk consumes during certain actions. After removal, the device does not respond to any service code!!! Attention! There were cases when, after deleting this file, the Radio application did not work correctly.
FMRadio.apk-- YES. FM radio player.
fotaclient.apk-- YES. Over the air update.
FTC.apk-- YES. Manages wi-fi work to connect to the network.
FTM.apk (FTS.apk) -- YES. Sharing Manager - If you are not going to use your phone as an access point or modem, you can remove it.
Gallery3D.apk-- YES. When you delete it, the gallery itself is deleted and the ability to use the standard video player in Explorer in the “open with” menu. Significantly consumes the battery. If deleted, you will not be able to quickly access the photos if there is no alternative. To replace it, I would recommend QuickPic, it gets the job done, is faster and does not take up as much memory (however, it is not as beautiful as Gallery 3D). After removal, there may be problems with installing standard wallpaper on the lock screen and desktop.

GameHub.apk-- YES.
Geniewidget.apk-- YES. Widget - weather and news, deleted without consequences.
GlobalSearch.apk-- YES. This is a phone search service. The EnhancedGoogleSearchProvider works through it.
Gmail.apk-- YES. It can be deleted if you do not use Google mail, but deletion will usually result in a violation of the Talk.apk application. Can be reinstalled from the Market.
GmailProvider.apk-- YES. see Gmail.
GmsCore.apk-- YES. Google Play Services.
GoogleApps.apk--NO. Google Apps Core File Required for Android Market.
GoogleBackupTransport.apk--YES. Saving settings and everything else on Google servers. This is also used by some applications (backup and resto).
GoogleCalendarSyncAdapter.apk--YES. Synchronizing your calendar with your Google account. Can be deleted if there is no need to synchronize the calendar.
GoogleContactsSyncAdapter.apk--YES. Sync contacts with Google account. A very useful feature. Can be deleted if there is no need to synchronize contacts.
GoogleCheckin.apk-- NO. Market Checking Service.
GoogleFeedback.apk--YES. Service feedback with users - deletion is possible if used third party applications or this functionality is not needed.
GoogleLoginService.apk(4.x.x) -- NO. Synchronization settings, required application. This application is responsible not only for synchronizing contacts and calendar, but also everything else associated with your Google account. Even if you don't sync anything, you shouldn't delete it.
GooglePartnerSetup.apk-- YES. Google's social crap.
GoogleQuickSearchBox.apk (GoogleSearch.apk) -- YES. Google search widget.
GoogleServicesFramework.apk-- NO. Provides Google services.
GoogleSettingsProvider.apk-- NO. Google Settings.
GoogleSubscribedFeedsProvider.apk -- NO. Required for Android Market. Synchronization of updates is possible.
GpsSetup2.apk-- NO. Responsible for GPS settings.
gtalkservice.apk-- NO. Deletion will result in the Market becoming unusable. You can delete GTalk.
GoogleTTS.apk(4.x.x) -- YES. Voice engine from Google.
HelvNeueLT.apk-- YES. System font.
HTMLViewer.apk-- YES. Responsible for viewing HTML files and help for some applications. Removing it may cause Opera Mini to not work.
HwCodec.apk - ?. Codecs for playback?
InfoAlarm.apk-- YES. Daily briefing widget. If not needed, delete.
InputEventApp.apk-- NO.
JobManager.apk-- NO. Task Manager.
KeyChain.apk(4.x.x) -- NO. Apparently this is a demon associated with the operation of certificates and security keys.
Kies.apk (KiesAir.apk; kieswifi.apk) -- YES.
Kobo.apk-- YES. Magazines.
Layar-samsung.apk-- YES. Layar augmented reality browser. It looks impressive in reviews, but I have never used it in reality.
LbsTestMode.apk-- YES. GPS testing mode. Launched via code *#*#197328640#*#*.
lcdtest.apk-- YES. Removing it will cause the display to stop turning off while locked. This can be fixed by installing individual parts, but it is better to leave it and forget about it.
LGSetupWizard.apk-- NO. Automatic Internet setup, MMS, etc. at LG.
LiveWallpapers.apk-- YES. Live wallpaper.
LiveWallpapersPicker.apk-- YES. Selection of live wallpapers.
LogsProvider.apk-- NO. Many programs will stop responding and forcefully close.
MagicSmokeWallpapers.apk-- YES. Live wallpaper "Smoke".
Maps.apk (GMS_Maps.apk(4.x.x)) -- YES. Google Maps apk file. If you don't use it, you can delete it. Although it is quite a useful thing, because it supports GPS.
MarketUpdater.apk-- YES. Automatic updating of the Market itself. If not needed, you can delete it.
MediaProvider.apk-- NO. Required to access media files and ringtones.
MediaUploader.apk-- YES. Responsible for uploading images to picassa (or facebook as a rule). You can delete it if not needed.
Memo.apk-- YES. Once deleted, you will not be able to create notes.
MiniDiary.apk-- YES. Mini notes.
minimode-res.apk(4.x.x) -- NO. One of the components of the MiniApps package.
Mms.apk-- YES. SMS and mms service. Can be replaced with an alternative. However, some alternative applications, for example Pansi, cannot receive MMS messages without mms.apk, but they do accept SMS. But HandcetSMS does this without problems with the mms.apk removed.
MobilePrint.apk-- YES. Remote printing of documents.
MobileTrackerEngineTwo.apk-- YES. This application allows you to enable tracking of your phone's movements. This feature is designed to help you return your phone in case of theft. The service is constantly hanging in the memory and consumes the battery well.
MobileTrackerUI.apk-- YES. See above.
MotionSettings.apk-- YES. Refers to the settings menu, menu item "Movements".
MtpApplication.apk-- YES. If this application is missing, the phone does not connect to the computer as a storage device.
MusicFX.apk(4.x.x) -- YES. DSP audio processor control.
MusicPlayer.apk-- YES. This is a music player. Can be replaced with another, more functional one. I would even advise you to remove it, because... When using several audio players, unstable operation of both is possible, as well as simultaneous playback of different songs via BT. When deleting on HTC, there may be problems with choosing a melody for the alarm.
MyFiles.apk-- YES. Standard file browser from Samsung. It can be replaced with a more functional one, but it is suitable for everyday use.
NetworkLocation.apk-- YES. Semi-accurate GPS simulation. The program uses the cell (sector on the BS) on which the phone is located to determine the location without using the GPS receiver, thereby saving battery consumption. If deleted, you will need to enter information about your location manually in programs such as weather forecasts, etc., or turn on the GPS receiver.
oem_install_flash_player.apk-- YES. Flash player, if we don’t use it, we delete it.
OtaProvisioningService.apk-- YES. This application can be deleted if you do not use over-the-air updates. On Samsung phones it can be used to update programs from SamsungAppStore. On HTC it is better not to delete it, because... The manufacturer practices software updates using this method.
PackageInstaller.apk-- NO. Provides installation of applications.
PanningTryActually.apk-- NO. Panning for photo/video camera.
PCSync.apk-- Yes. An application from the manufacturer for synchronization with the BB in some devices.
PCWClientS.apk-- NO. Stopping the investigation of the causes of system process failures.
Personalization.apk-- NO. Personalization of settings.
Phone.apk-- NO. An application responsible for the telephone part. After deletion, you cannot dial a number, view calls, etc.
Phone_Util.apk-- NO.
PhoneCrashNotifier.apk-- NO.
PhoneErrService.apk-- NO.
Phonesky.apk(4.x.x) -- Yes. Google Play Market. On some devices it can be deleted from the system, since it is also located in the data/app folder and works normally. But it should be noted that when removing it from system folder After XP there will be no market on the device.
PicoTts.apk-- YES. This is part of a text-to-speech (not speech-to-text) program. An application for people who are visually impaired. Also part of Google GPS that can dictate "turn right" or "left". Does not affect navigation functionality. After removal, it is advisable to also get rid of TtsService.apk. When deleting, you must disable "Driving Mode" in the settings.
PlusOne.apk(4.x.x) -- YES. Social service from Google.
Preconfig.apk-- NO. Samsung module for changing country CSC code.
PressReader.apk-- YES. News reader.
Protips.apk-- YES. Widget "help in using android"
ReadersHub.apk(4.x.x) -- YES.
RoseEUKor.apk(4.x.x) -- YES. System font.
SamsungApps.apk-- YES. Samsung apps. If you delete, you can usually delete signin.apk. Deleting it may affect music synchronization via Kies, but you will be able to update the firmware. After removal, widgets Samsung and touchwiz remain operational.
SamsungAppsUNAService.apk- Yes, in case of deleting SamsungApps.
Samsungservice.apk-- YES. Synchronization with Samsung service.
SamsungTTS.apk(4.x.x) --YES. Voice engine from Samsung.
SamsungWidget_CalendarClock.apk-- YES. Calendar clock widget.
SamsungWidget_FeedAndUpdate.apk-- YES. Feeds and Updates widget.
SamsungWidget_StockClock.apk-- YES. Another Stock clock widget.
SamsungWidget_WeatherClock.apk-- YES. Weather clock widget.
ScreenCaptureService.apk (ScreenCapture.apk) -- Yes. Application for taking screenshots.
SecurityProvider.apk-- NO. Encryption of the connection.
SelfTestMode.apk-- YES. Self-diagnosis of the device when loading.
SerialNumberLabelIndicator.apk -- NO. Looks like it has something to do with IMEI detection.
serviceModeApp.apk-- NO. The application is required to process service codes and tasks.
Settings.apk-- NO. Phone settings menu.
SettingsProvider.apk-- NO. Receives and applies settings received in a text or service message. It's better to leave it, because... some wrote about programs “crashing” after removal.
SetupWizard.apk-- YES. Theoretically, it can be deleted after the first successful boot, but difficulties may arise after XP.
shutdown.apk-- NO. Informs when the battery is low.
signin.apk-- YES. Account Samsung. Necessary for tracking device coordinates.
SisoDrmProvider.apk-- NO. Required for DRM to work. If you do without DRMUA and DRMService, perhaps this file can be deleted. I couldn't beat him on my phone.
SnsAccount.apk-- YES. Synchronizes posts from facebook and twitter.
SnsProvider.apk (SnsDisclaimer.apk; SnsImageCache.apk) -- YES. See above.
SocialHub.apk (SocialHubWidget.apk) --YES. Social media.
SoundPlayer.apk-- YES. Do not confuse with MusicPlayer.apk. This application plays sounds and ringtones. It can be removed, but you will have some minor limitations as it is slightly faster and more fit for purpose than MusicPlayer or a third party player. I advise you to leave it.
SpeechRecorder.apk-- NO. Records speech samples for speech recognition testing. Voice control uses it.
Stk.apk-- NO. An application to display the operator's menu, which usually offers horoscopes, news, jokes, music, etc. for money. If not needed, delete. When disconnected in the same session, all SIM cards are restarted, gprs may not work until the device is rebooted, after which everything works again. It is advisable to leave it, because After XP, problems may arise with auto-configuring APN and MMS.
Street.apk-- YES. Street View for Google Maps. Deletion will not affect the operation of Google Maps; you simply will not be able to view street photos.
Swype.apk-- YES. Swype Keyboard, an excellent alternative to the Samsung keyboard. It does its job well, predicts the text, but is not intuitive for beginners.
syncmldm.apk-- YES. Updating the device program.
syncmlds.apk-- YES. Synchronization settings, which are accessible from the menu. If you don't need them, you can delete them.
SystemUI.apk-- NO. Android user interface - User interface (everything related to the formation of the desktop, curtains and bar status, etc.).
Talk.apk-- YES. Google Talk. There has been some controversy regarding the dependencies of this application. The point was that when Google Talk was uninstalled, Gmail or Market stopped working, many said that this was not the case. So be careful here.
talkback.apk-- YES. Special abilities for people with disabilities.
TalkProvider.apk-- YES. See above.
TelephonyProvider.apk-- NO. Used to store SMS, contacts and calls.
thinkdroid.apk-- YES. Program for working with documents microsoft office. Deletion will result in the loss of the ability to open .doc, .xls and .pps files.
TouchWiz30Launcher.apk (SecLauncher2.apk(4.x.x)) -- NO. Even if you are using a third-party desktop environment such as Zeam or LauncherPro, uninstalling TouchWiz is highly not recommended. In the case of XP, you may lose the functionality of the phone.
TouchWizCalculator.apk-- YES. The Calculator app is a good and functional app, although there are alternatives.
TouchWizCalendar.apk-- YES. Calendar.
TouchWizCalendarProvider.apk-- NO. Keeps the Calendar app in sync with the time, date, and phone settings.
TtsService.apk-- YES. See PicoTts.apk
TwWallpaperChooser.apk-- YES. Allows you to select wallpaper. If you have a standard gallery or QuickPic, you can set wallpaper through them. However, you will not be able to select the wallpapers that are inside this apk.
UNAService.apk-- YES. Samsung Social Hub app.
UserDictionaryProvider.apk-- NO. Custom dictionary to predict words when typing. All previously unknown words, names, nicknames, etc. are added here. Theoretically, you can remove it if the standard keyboard is not needed. Without this program, the standard Android keyboard does not work, and general crashes are also possible!
Vending.apk-- NO. Part of the Android Market. In fact, this is the Market.
VideoEditor.apk-- YES. Video editor.
VideoPlayer.apk-- YES. Video player. At your discretion.
VoiceDialer.apk-- YES. Allows you to quickly dial by voice. You dictate the name, and the phone dials the number itself. This does not always work and only when the Internet is turned on. As far as I understand, the program sends a processed voice request to the Google server, and Google returns the finished word. Remove if you don't use it.
VoiceRecorder.apk-- YES. Allows you to record voice. Although the quality is not great, it is quite sufficient for voice notes.
VoiceSearch.apk- --Yes. Google voice search.
VpnServices.apk-- YES. VPN for Android. If not needed, you can delete it.
WapService.apk - ? Responsible for the operation of WAP(?)
wipereceiver.apk-- YES. Do you remember mobile tracker? This application is designed to erase information from your phone remotely if it is stolen.
WlanTest.apk-- YES. Testing wireless access settings is available through the same test menu. Required for OTA updates.
WriteandGo.apk-- YES. Write and Go app on Samsung phones.
wssomacp.apk-- NO. Required for SMS to work.
wssyncmlnps.apk-- YES. Over The Air Programming. This is necessary so that your provider can, if necessary, send you or change settings via service messages. (not used by us). Can be deleted. Option 2: Sync with Samsung Kies.
YouTube.apk-- YES. Because the platform has limitations on Flash playback, this application allows you to get full access to youtube instead of using it through the browser. You can delete it if you don’t watch videos online.
Zinio.apk-- YES. Online magazines.

In one of the lessons on APK editing Android applications, why and how to properly integrate applications and services into operating system, in this lesson we will look at how to properly remove it from the system! Let's get started!

This lesson is a continuation of the Encyclopedia on editing apk.

What is necessary!

1. Installed Root rights on an Android device
2. File manager with write/overwrite access SYSTEM section and DATA (for example Root Browser)
3. Apktool – (for beginners)
4. SmartApkTool – (for beginners)
5. Notepad++ – (for beginners)

What does it mean for beginners? If you have just started learning about Android and are taking your first steps in this direction, it is better to use these tools to understand the meaning of “how everything works.”

Should I or should I not remove the system application?

They remove the system application, only in order to replace it with a similar one, with a better one. convenient option. If you are deleting in order to increase memory in order to expand memory for installation, then you are very mistaken! The memory and partition for installation can be:

/data/app or /storage/sdcard1

While system applications are located in the section /system

If you updated a system application, say Google Maps, then the update will be installed in /data/app, and the old version will remain in /system/app.

Therefore, think carefully, maybe you don’t need to delete the system application, maybe you need to manually embed it?

Theoretical information

System applications and services are located in the SYSTEM section:

/system/app/ name.apk

If the firmware is ODEX or its individual parts, then next to the system application there may be a file similar in name, but with a different resolution:

/system/app/ name.odex

Some files contain additional libraries which are:

/system/lib/ name.so

Various caches and databases of system applications and services are located:

/data/data/ papka_prilogenia

If the firmware is DEODEX or its individual parts, then the files are located:

/data/dalwik-cache/ name.dex

/cache/dalvik-cache/ name.dex

Also on smartphones and tablets Samsung brands As a rule, there is a Preload section, which can contain applications and their odex files.

/preload/system/ name.apk

/preload/system/ name.odex

Plus, again, Samsung has so-called regional non-uninstallable applications that are installed every time if you do full reset data (wipe).

/system/usr/csc/ name-region

Where under name-region there can be the code name of your region, for Russia and the CIS - SER, for Ukraine and the CIS - SEK.

What can be removed from the system?

To this answer, you can find 1000 answers on the Internet that state what is possible and what is not! The correct answer will be your individual approach and preferences! As the line of the great Russian writer A. S. Pushkin says

“and experience, the son of difficult mistakes”

Everything is individual, until you make a couple of mistakes and gain experience, you will not understand what can be deleted and what cannot!

Naturally, there is a small set of rules that can be deleted; if you see a similar name, then there is no need to delete it:

• WiFi
• Bluetooth
• Launcher
• Settings
• Phone

Golden Rule

If you delete something, then you should think about how to replace the deleted application with a similar one.

Instructions for removing Android system applications

This instruction is larger than similar ones on the Internet, but it shows how to completely and correctly remove a system application (for beginners)

PREPARATION

1. Open the file manager and copy the application to the memory card, which later needs to be moved to the computer
2. Open the decompiled application folder
3. Open the AndroidManifest.xml file using Notepad++ - look for “project name” (package)

5. Please note that there is a LIB folder in the decompiled application, if there is one, pay attention to what files are there.

As you gain experience, these steps will no longer be necessary.

Uninstalling a system application

To make it clear, let's take an imaginary application 1.apk

1. Delete the application in the /system/app/1.apk section
2. Delete the ODEX application file if the firmware is coded /system/app/1.odex
3. We delete libraries if the application had a LIB folder. Go to the /system/lib/ folder and delete the *.SO file(s) of the application
4. Go to /data/data and delete the application folder (“project name”)
5. If the firmware was DEODEX then find DEX file applications in /data/dalwik-cache or /cache/dalwik-cache, the application name will be similar to this type system@ This email address is being protected from spambots. You must have JavaScript enabled to view it.

Now all you have to do is reboot Android and you're done!