Chosen Solution

Hi Before: iPhone X broken Screen 1st screen replacement: boot every 2 minutes (can do everything in iOS, screen works as expected) 2nd screen replacement: same story as above. iOS is updated to latest version

A general rule of restart 1-2 minutes is caused by lack of gas gauge data possibly caused by bad battery connection. I would check if you have battery data using 3utools you can download this for free it’s a very useful program. If you find that you have no battery data then I would check if you have damaged the battery terminal all it takes is for one of the data pins to be pushed down or bent. Another thing you can try is a new battery if the battery flex has been damaged this could also cause your issue. Worse case scenario is that the board could of been fractured when you dropped the phone causing a fractured line. Cheers