2. Press for a few seconds Volume Up(+) and POWER key.
3. Release all keys when recovery mode appears .
4. Highlight the option "wipe data / factory reset. Use the Volume Up(+)/Down(-) buttons to go through the menu items and the POWER button to confirm the selection.
5. Select Yes - Delete All User Data, using the same keys as before and confirm the selection by the POWER button.
6. At the end, you need to overload the phone, select reboot system now using the same keys as before and confirm with the POWER button.
Hard Reset - advantages and disadvantages BenQ B502?
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 get a phone with factory settings as a result. Remove viruses and malware that block applications on the device. Solving problems that have arisen on the device, for example, between the camera and other applications.
Disadvantages of Hard Reset:
All data and applications will be permanently deleted. The need to have an up-to-date backup of your data, contacts, settings and media files. After returning to factory settings, some viruses may remain in the phone.
What needs to be done before the Hard Reset operation.
In order to use the phone after a hard reset and it is not blocked by the FRP, make sure that you know the login / password to your google account. So that, after performing a factory reset, you do not need to remember the login password for the google account, you can log out of the google account before the hard reset. If after a hard reset you cannot remember the login and password for entering your Google account, then you need to find instructions on bypassing the FRP blocking. You will need to contact the official service center to bypass the FRP protection on some new phone models.
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 important information remains in the memory of your phone, then there are the following options to save it:
Synchronization with Google contacts, Google drive. Using the Titanium Backup program, create a backup. Using the service programs for your phone model, you can transfer important data to your PC.