What to do if there is an exclamation mark on the Android screen (how to fix it)? Android writes “No command” - what to do What does a question mark mean on Android

The green android robot no longer greets you when you turn it on, but lies accompanied by an exclamation mark.
So, if you see this picture - the android is lying with an exclamation mark, then you can be congratulated, you have made your first unsuccessful experiment in interfering with the software of your device. What is it, and most importantly, what to do with it and how to restore the viability of the device? The search for answers to these questions must begin, first of all, by finding out the reason that led to this condition.
If you installed an incorrect program for Android, then after rebooting it will definitely please you with an image with an exclamation mark. There is only one way out - do a hardware reset by selecting Wipe data/factory reset in the engineering menu.

Entering the engineering menu if your Android is different on different Android smartphones, but the combination of the home, power and volume down keys is recognized as standard. On devices with a touch home button, a combination of the power and volume down keys is usually used. The key combination suitable for your device must be pressed with your fingers and held until the service menu appears on the screen.

After the inscriptions appear, you must select the appropriate item by moving up and down using the volume rockers. After selecting this item, several lines will appear on the device screen asking whether you agree to delete all data from your device. After selecting the yes line, the device memory will be completely cleared. The next step, if the device does not reboot automatically, select rebootsystemnow, which means rebooting the system. If after these operations your device has restored its functionality, then we can congratulate you. The only disadvantage of this method is the loss of all information - including contacts, SMS, photos and downloaded applications.

However, if you regularly synchronize your phone with Google and remember your account login and password, then your losses will be insignificant.
If the above method does not help, then you need to completely replace the software. There are two ways - the first is flashing the device using a USB cable and a computer, but it will only help you if the “usb debugging” function has been enabled in the device settings. The second way is to update the software using a flash card through the engineering menu. Both methods are very risky and the slightest violation of the instructions will lead to the complete destruction of the device. At this stage, you should think about whether to try to restore the device yourself or trust the professionals.

If you nevertheless decide to flash an Android with an exclamation mark yourself, then you should carefully study all the information provided on the Internet on this issue. Certain types of Android devices have significant differences and features regarding software changes. If we briefly and generally describe this process, it looks like this: you find the firmware file on the Internet, download it, simultaneously studying reviews about this version and installation information. After this, you decide on the method of performing the Android recovery procedure with an exclamation mark.

If you chose the method using a USB cable, then unpack the firmware files into the root directory of drive C on the computer, install drivers for your smartphone if necessary, turn off the phone, use the key combination (usually the combination power+volume up) to enter the phone into firmware mode, connect via a USB cable to the device and follow the further instructions of the program. At the end of the process, be sure to hard reset your device to default settings using the recovery menu.

If you decide to resort to the second method and restore the software using the device itself and a flash card, then the steps are as follows - upload the firmware file to the root directory, insert the flash card into the phone and launch it in recovery mode. After the engineering menu appears, select the recovery option using SD and wait. After finishing, you also need to reset your Android device.

Mobile operating systems are not as reliable as they might seem. The “No command” error in Android is a clear example of this. A fallen brand with a red triangle completely paralyzes the smartphone and nothing can be done with it.

Reasons for the bug

The causes of the bug are quite critical damage to the OS or internal modules. Only something very serious can cause the operating system to crash. Sometimes users themselves are to blame, as they tried to reinstall the OS using files with dubious firmware. The fault may be a defect or a normal technical breakdown during operation of the device.

Error "No command" in Android

How to fix No Command error

Before you do what is described below, you should apply all the simplest steps - reboot by removing the battery, memory cards and SIM card.

Method number 1 - reset to factory settings

When turning your phone into a brick, you can try to restore the manufacturer's settings. There are many options for these actions, but we need the option with a dead smartphone. There is a special team designed to remove such bugs.

Method number 2 - Flashing

This is an extreme, but effective solution when you see that your Android is with an exclamation mark, and Hard Reset does not help. If you have not done such OS changes before, then entrust flashing the phone to someone more experienced. You can try installing the latest OS release or, on the contrary, roll back. If after reinstallation something goes wrong, change the version and source of your software. Nowadays there is really a lot of low-quality content.

In dead phones, the firmware file is transferred to the phone's memory via a USB cable via a computer, followed by activation of the installation. There is enough information on this matter on the Internet.

Breaking

All devices break down. In such cases, you need to either try to identify the cause yourself or contact a service center. What can be checked: removable memory cards, closed contacts on connectors, battery, correct assembly of all parts, moisture. If you suspect serious defects, you should seek advice from specialists.

Regarding the battery, it is worth mentioning that sometimes it is enough to just pull it out and insert it. There are references to solutions through its complete replacement, when the old one has already exhausted its working resources. If the device gets wet, it is better to immediately buy a new battery.

Conclusion

From what was described above, it is worth drawing one conclusion - the “No command” error on Android is written only during serious problems, so formatting the phone, flashing and repairing are the main recovery methods. I hope you understand what to do with the “No Command” problem in smartphones and tablets. Our biggest request is that if you have another solution, describe it in the comments.

If the phone does not turn on, for example, after flashing, you can try the following:

Turn off the device by pressing the power button for a little over 10 seconds
Press Volume Down + Power, we get into Fastboot mode
Select the Recovery mode option using the volume control buttons and confirm the selection with the power button
An Android will appear with an exclamation mark. Then press the Power button, and then press Volume Up
Select the wipe data/factory reset option
Select reboot system now

If the Android robot has an exclamation mark, this means that most likely you conducted an unsuccessful experiment with the device’s software. Perhaps you installed some broken program, which led to the crash of the android))

Perform a hard reset by selecting Wipe data/factory reset in the engineering menu. Depending on the model of your smartphone, you can access the engineering menu as follows:

Try the combination of home, power and volume down key.
If the home button is touch sensitive, most likely a combination of the power and volume down buttons.

The combination must be pressed with your fingers and held until the service menu appears on the screen. Then select the appropriate menu item by moving around by pressing the volume buttons.

After you select Wipe data/factory reset, several lines will appear on the screen and the question Should you delete all data from your device? Click yes. Now the device memory is cleared. After this, the device will reboot. If this does not happen automatically, you need to select the rebootsystemnow menu item. After a reboot, the device should, in theory, work normally again.

But the price for this is the loss of all data, and ALL of it - including all contacts, photos, SMS and all applications ever downloaded.

For this reason, you should always regularly synchronize your smartphone with Google through your account, since almost all data can be restored this way.

If rebooting through the engineering menu does not help, only a complete software replacement will help. This can be done by flashing the firmware by connecting the smartphone via USB to the computer or using a flash card through the engineering menu. Remember that flashing is a risky business. You must follow all instructions exactly, otherwise your device may be completely destroyed. In any case, be sure to find all the information on the firmware on the Internet so as not to make mistakes. Good luck to you!

Re-flashing, this is the only thing that helped me

Perhaps the tablet spontaneously entered the Recovery mode or the engineering menu. If God has mercy and after rebooting normal loading takes place, then some application can cause such an incident (sometimes it occurs when obtaining root rights). If there is interference again, then the problem with the firmware is bad - only to the service for flashing.

You may have done something with software on your tablet before this. Most likely, they installed some kind of buggy program and this led to such unpleasant results. The first thing you can try to do yourself is reset your tablet to factory settings. If this does not help, then reflash it. If you cannot do this yourself, then take it to a service center. They will definitely help you there.

This happens not only with tablets, but also with smartphones.

Something happened to your software.

Try resetting all settings on your tablet to factory settings (Hard reset).

You can read a little more about hard reset here.

In most cases, this will help you.

But, like everyone else, AT YOUR OWN RISK!>

After an unsuccessful attempt to make an Android backup with a built-in robot application on its side, with an exclamation mark and a torn belly! On the Internet there is only one thing - play with the volume rocker and the power button to enter the menu. Well, it doesn’t react at all!!! BRICK?

The solution was to remove the battery for a couple of minutes and put it back in. Like just a regular RESET. And everything WORKS!!! Checking the system did not find any failures. All settings, except the clock, profiles and files are in place!

But, like everyone else, AT YOUR OWN RISK!>

The recumbent android blinks, under the inscription of the netni command for one so-called reset with the commands POWER home +, - no response, the screen just turns off, the screen lights up, as if loading, and again the return to the dead turns off

Before this, did you simultaneously press three Home, Volume and Power buttons? It looks like you have entered the Recovery Menu of the tablet. There should be a Reboot or Rebooting item - tap on it. Or you can do a hard reset there, and all settings will return to factory settings. And for the future, I recommend going to this forum, where you can find information on the tablet.

You encountered a crash, an error in the program. To begin, click the Search button, then Reboot, reboot. Usually in such cases, a reboot helps. If this does not help, you need to contact a specialist. A re-flashing may be needed.

What if the tablet does not turn on?

It happens that while playing games or working on the tablet, it stops working and does not turn on. The main reasons can be roughly divided into two categories: problems with the device’s hardware - these are malfunctions of the battery, connecting cables, boards, or some problems with the software - incompatibility of programs, the operating system crashed or was installed incorrectly after the update process.

Let's take a closer look at individual cases of tablet malfunctions.

Absolutely no signs of life
1. The simplest and most common reason is a completely discharged tablet battery. To check this version, turn it on and wait at least 10-15 minutes. Only after this the tablet will be able to accumulate the minimum amount of energy to turn on. Press and hold the power button on the device and wait for the screen to light up. If the screen turns on, check that the charger is working properly - take another one and follow the steps described above. The tablet turned on, but the charging process does not proceed, you need to find out Why isn't my tablet charging? .

2. If a child was playing with the tablet, he may have damaged it by hitting it on the floor or corner of furniture. Most likely, part of the display has been damaged, in which case it can be replaced. The tablet itself is in working condition. Screen damage is usually visible to the naked eye.

3. If the device has no mechanical damage, a rare case is that the video adapter has failed.

If you find such signs and there is a valid warranty on the device, run to the salon and wait for repairs; doing repairs yourself is simply unreasonable.

The patient is neither alive nor dead

When the tablet turns on, but not completely, but freezes during the boot process (only the splash screen is on the screen), we are dealing with a software glitch.

The reasons may be the following:

1. Some programs or games are not installed correctly.
2. You forcibly terminated system processes, possibly through third-party software or task manager.

Procedure:

You can try to save the tablet by resetting the system to factory settings. It is best to find information about this on the Internet, because each device model has its own nuances. Or use the hard reset program. Using these instructions, you can reduce the procedure to the following:

1. Turn off the device.

2. Remove the SIM card and memory card.

3. Press the volume up key (on some models - down) and the button to turn on the tablet. Hold for about 10-12 seconds

4. If the tablet vibrates and a menu appears on the screen, you are on the right track. Select Settings, then Format Systems.

5. Reset the system - Reset Android.

6. The tablet will reboot with factory settings.

7. Try this scheme several times, it should work.

If unsuccessful, read the information on the topic “ How to unlock your tablet". Additionally, an excellent option for device resuscitation is flashing the tablet. In case of unsuccessful device firmware, good practical advice is given here.

Exclamation mark on a lying android

If an image of a lying green Android appears on the device screen, and there is an image of a red exclamation mark on it, you are in stock Recovery mode. There's nothing scary about it. Need to install the modified recovery ClockWorkMod Recovery. You got into it because you made a mistake when entering the combination to reset the settings, because each tablet model has its own combination. Press the power button and hold for a while until the device turns off, you can simply wait 3-5 minutes until the device finishes working on its own. As a last resort, you can do the flashing again.

What is Fastboot

The user can enter the mode Fastboot mode, in this case the android is also on the screen, but there is no exclamation mark. You need to use the volume buttons to get to the menu item Restart bootloader, use the power button to make a choice, sometimes this helps to revive the tablet.

Remember that each device model has its own “chips”. Some tablets easily reset their settings after pressing the home button while the Android is lying down, others only respond to simultaneously pressing the plus and minus buttons in the volume control for a long time.

Is your Android smartphone malfunctioning? Bring it to us!

If the phone screen shows an exclamation mark and the green android (operating system symbol) is down, this means that the operating system of your device is down.

Android lies - Exclamation mark on the phone!

The system refuses to work because:

Android is damaged by a virus;
an application incompatible with the OS was installed;
the phone was flashed incorrectly (ineptly) or with an incorrect OS version.

How to upgrade Android?

1. Even a non-commercial antivirus quite reliably protects the system from malware. Ignoring the risks of viral damage costs yourself more.

2. If there is incompatibility with the application, the problem can be resolved by pressing the “reset” button. After a reboot, the device will most likely work.

3. It is guaranteed that the exclamation mark on the phone will disappear, and the Android will greet the user again after flashing the firmware - installing Android OS on the formatted disk of the gadget. But you can try to raise the system without firmware, by resetting it to factory settings. For this:

We enter the settings menu using a combination of touch keys: home, power and the volume down key, pressing them together (provided that the home key is available), wait until the service menu appears;
In the menu, use the touch volume control to select yes, the device should reboot automatically;
if it does not reboot, select the rebootsystemnow menu item.

Important!

When resetting to factory settings, all user data (photos, recordings, etc.) will be lost. Cheap Chinese smartphones are dropping support for the Cyrillic and Latin alphabet. In order not to have problems with decoding hieroglyphs, and especially not to damage the “filling” with unqualified firmware, it is better to immediately contact a specialist at the nearest service center. The service also provides a guarantee of servicing the restored software. To store personal data, it is better to use computer hard drives or flash drives.

If you are a simple user and you don’t have time to figure out how to remove exclamation marks on your phone, lying androids or other misfortunes, then the easiest thing is to contact the CHIP service center. Our specialists will get your gadget’s operating system in order in a short time and at an affordable price. Phone firmware is one of the most popular services among our clients. Bring your sick gadget and literally in an hour or two pick it up completely healthy!