1. To start, turn off the phone with the POWER button.
2. After that, you need to press and hold the Volume Up(+) buttons Volume down and POWER within a few seconds.
3. Now, release the retained buttons when you see the menu on the screen.
4. To select Recovery mode, press the Volume Up(+) and POWER and POWER button together.
5. Highlight the option wipe data / factory reset Use the Volume Down(-) button to turn over the menu and press the menu button to confirm.
6. You need to confirm the reset operation, select Yes and press the menu button to confirm.
7. Overload the phone, select reboot system now and press the menu button to confirm.
Hard Reset - advantages and disadvantages BLU Diamond M D210L?
In simple words, Hard Reset means hard resetting the phone. As a result, the system automatically returns to the factory settings and the system is completely cleared. Contacts, correspondence, application, files, search queries, passwords - all of this is deleted from the device's memory.
Benefits of Hard Reset:
The ability to reset the phone to factory settings. Removal of viruses that interfere with the normal operation of applications and the system. You will be able to solve various problems on the device, for example, with bluetooth or other applications.
Disadvantages of Hard Reset:
All your contacts, data and media files will be deleted. The need to back up contacts and all user data. In some cases, it is impossible to remove all viruses from Android, even after a hard reset.
What needs to be done before the Hard Reset operation.
So that after a hard reset you can use your phone, make sure you know the login / password to your google account. You need to log out of your google account before resetting. In this case, after performing a factory reset, the phone will not ask for any logins and passwords and you can immediately use your phone. If, after a factory reset, the phone is locked because you cannot log into your Google account, then you need to find instructions for bypassing the FRP lock for your phone model. Not all owners of new phone models will be able to bypass the protection of the FRP and for this they will need to contact the official service center.
After performing a hard reset, your device will be completely wiped clean. Everything that was in the memory of your device will be deleted.
What can be done to avoid losing important information?
If personal data (contacts, photos, videos) remains in the memory of your phone, then they can be saved in several ways:
Synchronize your data and contacts with Google contacts, Google drive. Create a backup using Titanium Backup or other programs. Transfer contacts, media files and important data to your PC using service programs for your smartphone model.