When the LED message and phone of Xiaomi mobile phone are not visible, there is no prompt light flashing. What happened? If my LED light comes on.

I have encountered the same problem. Sometimes, when I start running the software, I will restart my mobile phone. I haven't found a solution yet ~ ~! ! ! ! urgent

I found a hardware test, I hope it helps-dialing * # * # 6484 # * * or * # * # 64663 # * * on the dial-up interface will pop up the hardware test. Find the LED light to test it to see if there is something wrong with the hardware. (It needs to be tested in a non-charging state, otherwise the red light will be on all the time, and I passed the test, which seems to be a software problem. )