Press and hold the power button and volume+to enter recovery mode. According to the information of Honghe teaching, there is a flat-billed duck lock screen on the screen of Honghe teaching integrated machine, and you can press the power button and volume+for recovery.

1. First, press and hold the power button and volume+to enter recovery.

2. Secondly, in the recovery mode, select two times to erase and clean.

3. Finally, the buttons of different mobile phones are different, so just test them yourself.