Chosen Solution
I fixed my iPhone screen recently and before closing the phone I tested it everything was fine up until about 10 mins into using my phone it restarted randomly. It continue to restart about every 10 ish minutes or right away if I try to use my front facing camera or answer/make a call. I have tried restarting the phone, power button and volume down button restart. I have even re- opened the phone and unplugged all the connectors then replugging them back into place and it continues. At this point I’m not sure what else I can try. Do I maybe need a new battery? Or is my screen faulty? thanks in advance!
The issue is most likely with your front camera flex cable. If you still have the original one, try installing that instead and see if it is fixed. The 7 series is picky about front camera flexes, even new ones can sometimes cause issues.