Method: Enter the recovery mode of the phone, clear data and restore factory settings. This method will restore the phone to its factory state, and all personal data, information, contacts, and applications on the phone will be lost. If there is important data on the SD card, please remove the SD card from the phone before operating.
With the power off, press and hold the power button and volume up button at the same time for about five seconds to enter the recovery mode
2. After the screen lights up, release the buttons and wait for the display to appear. The screen below, if it does not appear, please repeat the steps;
3. Use the volume and volume-keys to adjust the highlight bar to "wipe data/factory reset", which means "wipe data and restore factory settings", and press the power key Confirm;
4. Use the volume and volume-keys to adjust the highlight bar to "Yes, delete all user data" and press the power key to confirm;
5. Wait for a while until it appears. screen, select "reboot system now" to restart the phone and press the power button to confirm;
6. Wait for the phone to restart and enter the system. Enter the password and enter the system directly. Try it now!