Screen freezes and device reboots after replaced glass
I replaced the glass on my iPhone yesterday, and when i had put it all back together the touch screen didn't response at first. Later it started working, but after 1-5 minutes the screen freezes for a minute and the phone reboots. The reboot takes longer than normal, often up to 5 minutes.
If you've tried restore/DFU, reseating all the cables, then it may be the phone not recognising a part that isn't apple. There are lots of other people reporting the same problem after replacing iphone parts with OEM parts. You can try updating or restoring the iphone software or replacing the glass again.
I would also contact ifixit customer services/sales services.