iphone apple logo flashing
Iphone 11 pro max shut off while using with 65% charge and started flashing iphone logo. will not restart
Question marked as
Unfortunately, this is never a good sign.
Perform a Forced Restart on the phone. Follow the instructions very carefully, as this is a bit tricky. You may need to repeat this several times.
Force restart iPhone - Apple Support
There are only 2 possible results when you perform a Forced Restart:
1) The phone returns to normal operation
or
2) There is a hardware problem with the phone that will need attention at the Apple Store (make an appointment) or at an authorized Apple Service shop