2. Press and hold the Volume Up(+) and POWER buttons at the same time for a few seconds.
3. When the MOBIISTAR logo appears, release all keys.
4. Once the Android Robot appears, press the POWER button once.
5. Highlight the wipe data / factory reset menu item using the Volume Up(+)/Down(-) buttons and press the POWER button to confirm.
6. You need to confirm the reset operation, select Yes from the menu and confirm your selection with the POWER button.
7. Select "reboot system now" and confirm with the POWER button.
Hard Reset - advantages and disadvantages Mobiistar Zumbo J2?
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. Removal of viruses that interfere with the normal operation of applications and the system. Solving problems that arose after installing some applications and remained after they were removed from the phone.
Disadvantages of Hard Reset:
Completely deletes all user data on the device. The need to have a fresh backup of your phone's data, contacts, and media. 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 can sign out of your google account before resetting. In this case, after performing a factory reset, you do not need to enter the login password for your Google account and you can immediately use your device. If, after the hard reset procedure, the phone is locked by the FRP and you cannot log into your Google account, then you need to find instructions for bypassing the FRP lock for your phone model. Some new phone models may have problems with bypassing the FRP protection and for this you 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:
Synchronization with Google contacts, Google drive. Backup your contacts and information. Transfer important data to your PC using service programs for your smartphone model.