Codes for Samsung gt. Service codes and key combinations for Samsung Galaxy smartphones. A tricky situation, or something wrong with the memory again
Service (aka engineering, aka secret) codes are used for quick access to various functions, often even hidden ones. There are universal codes for Android, and there are those that are only available for certain device models.
Not long ago I published an article in which I told... To do this, you could use special software or use one of the secret codes. Now I will talk about the most popular of them, thanks to which you can make many system settings.
Popular secret codes for Android smartphones
Why are these codes called “secret”? They are simply not needed by most ordinary users; they are not published in the instructions for smartphones. First of all, “secret codes” are intended for engineers and developers to conduct various tests.
To use any of the service codes, you need to enter it in the dialer. On tablets, you will have to download a third-party application to make calls - enter the query “Dialer” in the Google Play search and download the “dialer” you like.
- *#06# - information about the IMEI of the smartphone
- *#*#4636#*#* - information about Wi-Fi, battery and usage statistics
- *#*#3646633#*#* or *#*#83781#*#* - enter the engineering menu on smartphones with an MTK processor (you can use it)
- *#*#8255#*#* - testing the Google Talk service
- *#*#7594#*#* - if you enter this combination, after that, when you press the power button, the smartphone will immediately turn off, without offering a menu
- *#*#44336#*#* - information about PDA, CSC, build time and other data about the smartphone
- *#*#232338#*#* - Wi-Fi MAC address
- *#*#7780#*#* - instant reset to factory settings (Hard Reset). Only removes applications
- *2767*3855# - instant reset to factory settings, but unlike the previous method, Android is completely reinstalled
- *#*#1234#*#* or *#12580*369# - information about the device firmware
- *#*#1111#*#* - information about the FTA software version
- *#*#2222#*#* - information about the FTA hardware version
- *#*#0283#*#* - Loopback test
- *#*#0*#*#* - screen test
- *#0*# - testing various components: screen, camera, speakers, vibration, microphone and others
- *#*#0673#*#* or *#*#0289#*#* - audio test
- *#*#0842#*#* - vibration and backlight test
- *#*#232339#*#* or *#*#526#*#* - wireless network test
- *#*#1472365#*#* - GPS test
- *#*#1575#*#* - detailed GPS test
- *#*#232331#*#* - Bluetooth test
- *#*#232337#*#* - show Bluetooth address
- *#*#2663#*#* - touch screen version
- *#*#2664#*#* - touch screen testing
- *#*#0588#*#* - motion sensor testing
- *#*#7262626#*#* - GSM signal test
- *#197328640# - switch to service mode
- *#*#3264#*#* - RAM memory version
- *#*#8351#*#* - activation of voice dialing registration mode
- *#*#8350#*#* - disable voice dialing registration mode
- #*5376# - delete all SMS
- *#2222# - Android firmware version
- #*2562#, #*3851#, #*3876# - reboot your smartphone, tablet
- *#34971539# - complete information about cameras and updating their firmware
- *#*#273283*255*663282*#*#* - quickly create a backup copy of media files
- *#*#4636#*#* - secret menu for Motorola devices
- **05***# - unlock PUK on Sony
- 3845#*855# - service menu on LG G3
- *#0011# - service menu on Samsung Galaxy S4
- ##778 (+call button) - displays the EPST menu (for Samsung)
- ##3424# - diagnostic mode (for HTC)
- ##3282# - EPST (for HTC)
- ##8626337# - VOCODER (for HTC)
- ##33284# - technical data of network status (for HTC)
- ##7738# - protocol revision (for HTC)
In principle, these are the most basic and universal service (secret) codes for Android tablets and smartphones, but all manufacturers add support for their own, so if you are interested in codes for a specific device, download the application. It will be discussed below.
Android service codes in the Secret Codes application
The Secret Codes application will scan the system for engineering codes and display the result in the form of a list. You just need to click on the code of interest and you will go to the desired option.
Unfortunately, this method has a drawback: on some devices the application does not find a single service code, and on some it does not find everything. But on the devices I tested, everything was fine, and the reviews on Google Play were almost all positive.
If you've forgotten your Samsung password, don't worry; you can recover the passcode using your gmail account, or like the last ditch attempt, using a factory reset. Perhaps this article will help you: What if I forgot my password?
Use a hard reset as the last method, which will only be performed if you are 100% sure that you do not have a Gmail account associated with your phone.
There are several variations of the factory password; each smartphone has its own. If you know any more, write it in the comments.
The default factory password is 00000000 (8 zeros). Also 1234, 12345, 0000, 00000. If not one is suitable, you can reset it. Attention, all data will be lost!(Except for those on the SD card, if you remove it). To do this, you need to remove the SIM card and then enter: *2767*8451# (on some models *2767*3855#) the password will most likely be reset to 8 zeros.
How to recover a forgotten password via Gmail?
This method will only work if you have connected your Gmail account to your Samsung phone.
1) Read the pop-up warning. Entering the wrong password five times on the unlock screen will trigger a pop-up warning. The system will be prompted for 30 seconds. Click OK.
2) State what you forgot. Direct your gaze to the options displayed at the bottom of the screen. Click “Forgot Pattern”, “Forgot PIN” or “Forgot Password”. Depending on which unlocking method you used to secure your Samsung phone.
3) Log in to your Gmail account. You need to send your Gmail ID information associated with your Samsung phone. Enter your Gmail username and password in the text field that appears and click the Login button.
4) Reset your password. After submitting the correct Gmail username and password, you will be prompted to reset your Samsung password. Create a new password and click OK or Continue. Re-enter your new Samsung password and click OK. This should allow you to access your Samsung phone or tablet again.
How to Hard Reset Samsung Password?
To remove Samsung password, first turn off your phone. Just press and hold the Power button for a few seconds. Before performing a Factory Reset, remember that this will cause you to lose all data on your Samsung phone. You see, Factory Reset is basically a software recovery and will return your gadget back to its original system state by deleting all the files stored on it.
Some good news: Factory Reset will not delete data stored on your SIM card or Micro SD card. This method does not actually recover your password, but it deletes all user data, including any set passwords or security patterns, on the device storage so that you can access your Samsung password again.
The volume buttons are on the left side of the phone, the power button is on the right, and the home button is at the very center of the bottom of the screen.
1) Turn off your phone. The normal way of pressing the power button will not work. Instead, hold and press these buttons at the same time: Volume Up or Down + Power + Home.
2) Whether you press Volume Up or Volume Down depends on the Samsung tab you are using. Try trial and error with both buttons.
3) Select to perform a factory reset. In the previous step, a welcome screen will appear in which you can select the option “Wipe data/Factory reset” using Volume keys. Confirm your choice using the Power button.
4) The option can also be presented as "Yes, delete all user data". Simply use the Volume keys to select an option and the Power button to confirm it.
Give the system a minute or two to complete the process.
Select "Reboot system now". It will appear on your screen. Confirm system reboot using the Power button. Wait a couple of minutes for the process to complete, after which you can use the password again. If none of the methods listed above helped you, see: How to restore to factory settings?
How to Unlock Samsung Password Using Find My Mobile?
If you are unable to unlock your Samsung password, first of all, don't panic. Tons of people have been in the same position before, and many more will follow in the future. That's why Samsung (and Android itself) have made it extremely easy to reset your password and regain access to your phone.
1) To unlock your phone using the Samsung Find My Mobile platform, go to the official website by clicking .
2) Login using the Samsung account you created when you first purchased your smartphone. Of course, this requires you to sign in to your Samsung account and not skip it.
3) On the toolbar, click the button Unlock device."
4) Make sure your phone is turned on and connected to the Internet via Wi-Fi or an active data connection.
5) Click " OK" for a popup that is displayed on a website.
Your phone will now communicate with Find My Mobile and should unlock remotely within a few minutes. Now you'll want to log in settings device and create a new password.
If you encounter any problems during the process, be sure to let us know in the comment section below and we will do our best to help you.
Many devices running the Android OS are additionally equipped with a special environment - the engineering menu. With its help, the user has the opportunity to test all the sensors and modules of the mobile device, as well as adjust certain parameters of the gadget for more comfortable use. In Samsung phones, Engineering Mode is hidden in the system by default. And in different models, entering it is performed differently. And the functionality of this area may also differ. Let's look at how to enter the engineering menu on the Samsung Galaxy A5, Galaxy S6, J3 and other smartphones from the Galaxy line.
Where to find the engineering menu on Samsung Galaxy
The main purpose of Engineering Mode is to fully test mobile devices at the final stage of their production. This environment was originally developed for debuggers on smartphones and tablets, but today anyone can use it. The main thing is to know how to open technical mode on Galax.
You can enter the engineering menu using a special combination (USSD code), which is written in the dial panel. However, these commands may differ in different phone models:
- in Samsung J7 and J1 the actual combination is *#*#0011#;
- for Samsung Galaxy A5, Galaxy S5, Galaxy S6, the dial *#*#8255#*#* or *#*#197328640#*#* is suitable;
- on Samsung Galaxy A3 the code is *#*#9646633#*#*;
- for Samsung Galaxy S3 – *#*#0#*#*;
- in Samsung Galaxy S7 Edge – *#*#8255#*#* or *#*#4636#*#*.
On other devices from the Galaxy line, you can use the service combinations *#*#4636#*#*, *#*#8255#*#* or *#*#3646633#*#*.
If you can’t open the engineering menu using the above commands, you can resort to one of the programs developed specifically for this purpose (EngineerMode, Mobileuncle Tools, Shortcut Master, etc.). To start the technical mode, just install and run one of the utilities. After this, you will automatically enter Engineering Mode.
All applications for opening the engineering menu only work with MTK processors (MT6573, MT6577, MT6589, etc.) and some Exyon chips. For phones equipped with a Qualcomm CPU (for example, Samsung Galaxy A5), such software will be useless.
Main features of the engineering menu on Samsung Galaxy
Having figured out how to enter the engineering menu on Samsung, let's look at its main features. A full-fledged Engineering Mode for MTK chips is equipped with a large number of tools with which you can perform a complete diagnosis and fine-tune the Samsung in many parameters.
However, many smartphones have a stripped-down version of the technical mode, which somewhat reduces its functionality. And in mobile devices based on a Qualcomm processor, through the engineering menu you can only view information about some modules and perform small tests of the main elements of the phone (display, modem, SIM cards and battery).
On the Samsung Galaxy A5 and Galaxy S6, the main sections of the engineering menu are:
- Telephony;
- Wireless interfaces (Connectivity);
- Testing mode (Hardware Testing).
In the Telephony tab, the user has the opportunity to:
The Connectivity section is intended for diagnosing and configuring Wi-Fi, Bluetooth and FM wireless modules. It is not recommended to change anything here, as this may lead to failure of the smartphone. 
The most popular tab in the engineering menu is Hardware Testing. This is where you can test the performance of the processor, battery, speakers, camera, display and GPS module. This area allows you to perform a complete diagnosis of Samsung during its purchase and identify possible malfunctions of the product. 
This is the second list of codes for Samsung that I have prepared, and it is dedicated to the series Samsung GT, since the bulk of problems (the need to unlock) arise precisely with them. I also strongly recommend that you familiarize yourself with the first list of service codes! The codes presented there are mainly not for smartphones.
You need to enter codes into the “Dial” number, like a regular phone number.
It often happens that while typing commands, the phone claims that you are entering incorrect commands. This may be true if the command is not supported by your model. But still, when typing codes, try not to pay attention to what is displayed on the screen.
Despite the fact that the codes are sorted by model, they may overlap - for example, information about the firmware and running various tests.
Samsung GT-i8510, GT-i5700
*#0*# - hardware testing menu
*#0000# - software information
*#1111# - software version (FTA SW Version)
*#2222# - hardware version (FTA HW Version)
*#1234# - phone firmware version (SW Version).
*#0842# - vibration test
*#0289# - speaker test
*#0782# - clock
*#0228# - information about the battery, when you press "back" - access to sections of the testing menu
*#3333# - camera setup mode
*#0002*28346# - audio testing
Combinations for resetting settings:
*#7370# - another Reset command
Press and hold "8", "0" and the power button - a full reset to factory settings with deletion of contacts. Unlock codes for Samsung GT-i9103(possibly for other models):
*#7465625# - checking existing locks
#7465625*2877# - automatic removal of SP lock (Auto SP lock OFF)
#7465625*2827# - removing CP lock
#7465625*28746# - removing SIM lock
*2767*688# - unlock code
Samsung GT-c3300
*#56658378# - service menu (for example, the T-Flash item is responsible for displaying the memory card icon)
*#52828378# - Java testing menu
*#0673# - MP3 test mode
*#36245# or *#0206*8378# - testing modes
Those starting with *#8999* are not suitable for GT-c3300.
Samsung GT-i5500
*#*#7780#*#* - factory settings (Factory Reset)
*#*#3214789650#*#* - GPS test for Froyo firmware
*#*#2664#*#* - touchscreen test
Codes for Samsung GT-S5660 Galaxy Gio(tested, but also suitable for GT-i5500)
*#*#4636#*#* - general information about the smartphone and battery, the menu consists of the following items:
- PhoneInformation (phone information)
- BatteryInformation (battery information)
- BatteryHistory (battery history)
- UsageStatistics
*#*#197328640#*#* - service menu for testing, WLAN and GPS
*#*#232339#*#* or *#*#526#*#* or *#*#528#*#* – WLAN test (press “Menu” to start)
*#*#1472365#*#* or *#*#1575#*#* – GPS test for Eclair firmware
*#*#8255#*#* - launch GTalk Service Monitor
*#*#232331#*#* – bluetooth test
*#*#232337#*# – bluetooth MAC address
*#*#232338#*#* – WiFi MAC address
Getting information about the firmware:
*#*#4986*2650468#*#* – PDA, Phone, Hardware, RFCallDate
*#*#2222#*#* – FTA hardware version
*#*#44336#*#* – PDA, Phone, CSC, Build Time, Changelistnumber
Other service codes for testing a smartphone:
*#*#0283#*#* – PacketLoopback
*#*#0*#*#* – test of the screen, sensors (accelometer, proximity, compass), vibration, etc.
*#*#0673#*#* or *#*#0289#*#* – sound system test
*#*#0842#*#* – testing vibration alert and backlight
*#*#0588#*#* – touch sensor test
*#*#3264#*#* – RAM version
*#*#251#*#* – enable wake lock (lock to wake up)
*#*#250#*#* – disable wake lock
*#*#350#*#* – phone reboot
*#*#0368#*#* – FM radio settings
*#*#0011#*#* – network information
*#*#0728#*#* – clock and date
*#*#7353#*#* – set of 10 tests
*#*#737425#*#* – information about model, IMEI, phone manufacturer
*#*#767*2878#*#* – reset the QWERTY Slide counter
*#*#3282*727336*#*#* – information about the number of calls, SMS, mms, phone memory
*#*#273283*255*3283*#*#* – editing the maximum number of SMS, mms, calls and contacts.
Miscellaneous
*#8999*327# - EEP menu
*#8999*364# - Watchdog on/off.
*#8999*377# - error log
*#8999*523# - contrast adjustment
*#8999*667# - Debug Mode
*#2255# - call list
#*2286# - battery information
#*2886# - auto answer on/off.
#*3888# - Bluetooth testing mode
#*7200# - sound tone generator
#*7828# - task screen
#*5737425# - Java mode
#7263867# - RAM Dump (on/off)
#9998*228# - battery information
Big request- after you try to dial this or that code on your phone, write down whether it works or not. In this way, you will make a significant contribution to the compilation of an up-to-date list of commands.
Previously, scammers only counterfeited the Galaxy S and Galaxy Note series. In 2018, counterfeits of any series appeared, including A and J.
What is the difference between an original device and a fake?
Quality of components
Original smartphones and tablets are made from the highest quality components. Samsung installs the best components at the time of their release on its flagship devices: displays, processors, cameras, memory modules and other parts. Most of them are the company's own developments. Thanks to this, Samsung devices receive many awards and high customer ratings every year.
Counterfeits are made from outdated and cheap parts. As a result, replicas of flagship devices perform worse than original budget Samsung devices.
Software quality and safety
Samsung carefully tests the software for its devices: first with its own testing department, and then with the help of Google, the creator of Android. Thanks to this, smartphones and tablets work quickly, and you can safely use mobile banking, add cards to payment services, and store personal photos. Samsung continues to take care of software updates on its devices even after they are released: it releases new firmware and security updates.
Fraudsters do not worry about the quality of the software - as long as the device turns on. No one is stopping them from installing spyware or phishing software on the fake, which will steal photos, contacts, bank card details, passwords and other data. Counterfeits do not pass any certification. No one updates them or monitors the security of the software.
Branded services and functionality
Original devices have branded services, many of which have no analogues. For example, Samsung Pay, which allows you to link a bank card to your smartphone and pay for purchases through almost any terminal.
Not a single branded service will work on fakes.
Availability of guarantee
All original Samsung devices have a guarantee: manufacturing defects will be corrected free of charge.
There is no guarantee for a fake: it will not be replaced or repaired, even if it breaks the next day after purchase.
Where do they sell fakes?
Mostly, fakes are sold secondhand and on free classifieds sites.
Selling by hand
Near a metro station, a train station, or a large store, a person approaches you and offers to buy a smartphone or tablet at a clearly reduced price, explaining the discount by an urgent need for money. Usually there is even a receipt and a warranty card. The seller is in a hurry, constantly talks to you, does not allow you to concentrate and examine the device properly. He can tell you that all his money and documents were stolen, his children are waiting for him, and he is late for his plane. In general, he makes every effort to make you feel needy or awkward and give you money faster.
Selling on free classifieds sites
You find an advertisement on the website with a very low price. The price is often explained by the fact that the device was given as a gift, but you already have a smartphone or tablet. Over the phone they can say that there is already a buyer or they come up with another legend that will encourage a purchase. Questions are answered in general phrases or evasively. They are found near the metro, shopping or business centers, and almost never give the addresses of residential buildings. When meeting, they are in a hurry. After the sale, the number is disconnected or blacklisted.
The photo below shows a typical scam ad.
1. The average price of such a smartphone at the time of viewing this ad is 45,000 rubles. Thanks to such a low price, the ad received almost 400 views in a few hours.
2. You can already see from the photo that this is a fake - there are no such inscriptions on the original smartphone.
3. Seemingly logical motive. You immediately get the feeling that you have won the lottery and you need to take it as soon as possible.
Another ad, almost a carbon copy. And there are hundreds of them.
Sales in stores
Of course, counterfeits are sold in both regular and online stores.
The photo below shows one of these online stores.
At the time of writing this article, the Galaxy Note 9 had not even been announced, and scammers were already selling it.
How to recognize and not buy a fake
Counterfeits are made at different Chinese and Taiwanese factories, so they are all different from each other. There are no guaranteed features that can be used to visually distinguish a fake from an original device: some fakes may differ in body elements, others in the display, and others in the way the inscriptions are applied. The main difference is in the filling, which is difficult for an unprepared person to appreciate. You need to know well how the original device works: understand the versions and manufacturers of processors, screens, shells, benchmarks, etc.
Therefore, the only way to distinguish a fake from an original is a visual inspection of the device by a competent specialist. For example, this could be an engineer at a company service center.
There are comments where users demand some kind of service or protection that is guaranteed not to be bypassed. It is impossible to make such protection: at the moment there are no such technologies. I would also like to remind you that everything is successfully counterfeited, no matter what the protection: money, documents, medicines, cars, spare parts, jewelry, smartphones, tablets, headphones, clothes, shoes, watches, software. Even the products are counterfeited.
However, despite all the difficulties with counterfeits, there are some tips that can help you when buying.
Pay attention to the quality of translation of menu items
On original devices, the translation is done efficiently, without errors, inscriptions are only in English and Russian.
On counterfeit devices, menu items may use Chinese characters, the translation itself may be conspicuous, and phrases may appear illogical. For example, on the lock screen there may be an inscription: “Drag to unlock.”
