How to brush the hammer nuts back to the original system?

Refer to the reference path of hammer mobile phone to restore factory settings: enter mobile phone settings-global advanced settings-restore factory settings. If the phone has a screen lock password, you can only restore the factory settings after entering the correct password.

Note: 1. After the factory settings are restored, the first boot time will be longer, and the recovery process will take about 3 minutes. When finished, the system will automatically restart. If your phone stays in the boot interface for a long time and doesn't respond, please wait patiently. It takes a long time to boot for the first time. 2. After the factory settings are restored, the mobile phone settings and information saved in the mobile phone will be cleared, including account number, SMS, contact person, call record, etc. Please back up your personal data in advance.