Redmi k20pro crash black screen official explanation

According to the relevant data, it may be a system problem. We suggest you try the following operations:

1, the screen is black when talking, which can wipe the position of the distance sensor to prevent it from being blocked;

2. If a black screen appears during use, you can try to press the power button repeatedly to see if you can light up the screen. If you light the screen again after locking the screen, you can see the screen locking interface, but the screen is still black after unlocking, which may be caused by abnormal software currently used;

3. Try to plug in the charging cable and see if the breathing light lights up. If the light is on, try to press and hold the power button 10S or more to forcibly restart the phone and turn it on to see if the display is normal. If the light is not on, there is no response after pressing the power button for more than 10 seconds. I suggest you handle it at Xiaomi Service Center.