If you get an error “Unfortunately, the device stopped working” on the Samsung Galaxy A7 smartphone released in 2017, first you need to make sure that this error is software.
Step 1:
Clear the cache and application data Clearing the cache and data will return the application to its original state by removing all corrupted files. When problems are software, clearing the data cache is the most effective way to solve it.
1. On the Home screen, click the Applications icon.
2. Click Settings.3. Click Applications.
4. Click Application Manager.
5. Tap Phone.
6. Click Repository.
7. Click Clear Cache.
7. Click Clear Data and then OK.
After that, reboot the smartphone to update the memory. When the machine starts, open the Phone application and see if there is a problem or not. If left, go to the next step.
Step 2: Launch your smartphone in safe mode
Perhaps the source of trouble is one of the applications you have installed. In the safe mode, they will not start. If there is no error in safe mode, you need to find the culprit application.
1. Turn off your smartphone.
2. Press and hold the power button until the device name screen appears.
3. When Samsung appears, release the power button.
4. After that, press and hold the volume control down.
5. Hold the button until the smartphone completes the restart.
6. In the lower left part of the screen there will be an inscription “Safe Mode”.
7. Release the volume control.
If there is no error in this mode, you need to find a problematic application. Update all programs for which there are updates.
1. On the Home screen, click the Applications icon.
2. Click on the Play Store.
3. Click on the menu button and on the “My Apps” section. To update the program automatically, click on the menu, open the settings and click on the “Automatic application update” field.
4. Select one of the two options:
• Click Update All Applications.
• Select one application and update it separately.
If you suspect an application, clear its cache and data.
How to clear cache on Galaxy A7
1. On the Home screen, click the Applications icon.
2. Click Settings.
3. Click Applications.
4. Click Application Manager.
5. Tap the desired application in the list or click More> Show system applications.
6. Click Repository.
7. Click Clear Cache.
8. Click Clear Data and OK.
How to uninstall applications on Galaxy A7:
1. On the Home screen, click the Applications icon.
2. Click Settings.
3. Click Applications.
4. Click Application Manager.
5. Tap on the desired application.
6. Click Remove.
7. Press Delete again to confirm.
If the error persists, continue to the next step.
Step 3: Reboot your smartphone in recovery mode and erase the cache partition
If the error persists in safe mode, it’s time to start the firmware. To begin with, you need to remove the entire system cache so that a new one appears. Since you do not have access to individual caches, you need to delete everything at once. This is done in the recovery mode by deleting the speech sections.
1. Turn off your smartphone.
2. Press and hold the volume control upwards and the Home button, then press and hold the power button.
3. When the device logo appears, release the power button.
4. When the Android logo appears, release all buttons. For 30-60 seconds, “Install system updates” appears before the restore menu appears.
5. Press the volume control down several times to highlight the wipe cache partition command.
6. Press the power button to activate this command.
7. Click Yes.
8. When the cache partition is removed, select the Reboot system now command.
If the error remains, there is another option.
Step 4: backup the files and reset the settings to the factory
If nothing has helped, it’s time to return the smartphone to its original state. Before this, save all the photos, data of installed applications, etc., as the reset will delete them. Before resetting, disable Factory Reset Protection, otherwise you will not be able to log into the system.
To disable Factory Reset Protection:
1. On the Home screen, click the Applications icon.
2. Click Settings.
3. Click Accounts.
4. Click Google.
5. Tap the Google ID address. If you have multiple accounts, repeat this step for each of them.
6. Click Advanced.
7. Click Delete Account.
8. Click Delete Account again.
How to reset Galaxy A7 to factory settings:
1. Turn off your smartphone.
2. Press and hold the volume control upwards and the Home button, then press and hold the power button.
3. When the screen with the device logo appears, release the power button.
4. When the Android logo appears, release all buttons. 30-60 seconds will be displayed “Install system updates”, then the recovery menu will appear.
5. Press the volume control down a few times and select wipe data / factory reset.
6. Press the power button to activate the command.
7. Push the volume control down and select Yes – delete all user data.
8. Press the power button to activate the command.
9. When the reset is complete, select the Reboot system now command.
10. Press the power button to activate the command.
You can also reset from the settings menu:
1. On the Home screen, click the Applications icon.
2. Click Settings.
3. Click Backup and Reset.
4. If necessary, click Run backup data, set the switch to On.
5. If necessary, click the Restore radio button.
6. Click Reset to factory settings.
7. Click Reset Settings.
8. If security is set to the input on the lock screen, enter the PIN code or password.
9. Click Continue.
10. Click Delete All.
