The problem is quite widespread on the Internet. The problem is quite common, there is already information about this problem somewhere on the Internet. If this is exactly the problem, there is a possibility of a short circuit on the motherboard if you put the phone screen down to the bottom, then after disassembling, removing the case(s) on the motherboard from the bottom left there will be a small screen (the so-called screen) most likely it can short out, I have not encountered such a problem myself.