iPhone 13 pro max reboot loop causes by damaged coil charge?

After a repair in a store (not at Apple) which consisted of replacing the glass back. My iphone keeps restarting over and over after about 5min of use or not. I wonder if this is caused by the wireless charging coil being damaged as I saw him (the technician) pull and tear out a copper wire when the back was open. The repairer (technician) declines all responsibility even though my Phone was working correctly before replacing it.

I would like your opinion if I just replace the wireless charging coil so that it stops restarting it (fix) ???

Thanks for your ans