[AC Question]

Hey guys, after downloading a system update this morning, my HTC One M7 keeps rebooting and entering recovery mode. I've tried factory resetting (backing up phone storage), clearing the cache, and rebooting several hundred times, but to no avail. When I check recovery mode, it says "Can not mount SDcard", but there's no SD card present in the phone. Anyone know how to fix this?

[Rukbat]

Take the phone to your carrier and ask them to please fix the damage their update caused. (That the phone is no longer under warranty is irrelevant - it's a liability issue. They broke the phone, they have to fix or replace it.)