I have the same problem and a bv9800pro. What was the bv9500pro problem normaly? The USB charge board, wireless charge board or the mainboard?

Thanks.

The phone is no year old (Feb 2021), I hope it is possible to fix it.

Hello, my new bv9800 pro (Feb 2021) power off (battery >15%) without noteable reason. I can't power it on again. Then I charge the phone the red led power on, nothing more. When I press the power button the red led switch of for a secound after a while while charging. I contacted the seller multiple...