2: The mobile phone enters the recovery (the recovery at this time must be the official recovery, because the official recovery can only brush Xiaomi's official brush bag), and then when the mobile phone is turned off, press and hold the volume increase button+power button of the mobile phone at the same time (press and hold both buttons at the same time), the screen will light up, and release the button to enter.
3. Select Simplified Chinese and confirm. In the recovery interface, the volume key indicates the power key indicates confirmation. We use the volume key to select the second one, clear the data, press the power key to confirm the input, and then use the volume key to select the above three cleared options. This is Sanqing. Press the power button to confirm and clear in turn.
4: After cleaning for three times, return to the recovery main interface, choose to install update.zip into the system and confirm it together, choose to confirm and wait for completion, and choose to restart the system.