iPhone 11 shutting down and restarting every few minutes after a repair

[olaMD]

My phone got run over by a car and I replaced back and front housing (twice, because I dropped and cracked it again) and everything works except that the phone shuts down and then turns itself back on every few minutes (only after the second repair, was fine with this when cracked before the second repair). I went back in and the battery connection to logic board seems solid. I unplugged and plugged back in. No improvement. I was advised to replace to docking station so I did, no improvement. Any thoughts on what it could be?

 

[BugeyeSTI]

Sounds like something on the board is damaged. Possibly a cracked solder contact.. Only way to know for sure is to take it to a 3rd party repair facility that can do board level diagnostics and repairs.. Apple won't touch it