Chosen Solution
I replaced my iPhone 7 plus screen with a new one I’ve done this on 2 other occasions and with previous of iPhone’s so I know what I’m doing for the most part. I checked everything was working before putting the screen completely back on. But, for some reason when I put the screen back into the housing it starts the rebooting loop. This the first time I have ever encountered this kind of issue if anyone has any ideas why the help would great.
You could have ripped the home button or front camera flex cable and that may cause it boot loop.
