hi guys,
I seem to be having the same problem as zimmdo23...i was trying to install coin following a video tutorial with the aim of gaining s-off. However, the video failed to prompt me for a backup and it really didnt occur to me because everything worked perfectly on the video. Unfortunately after installing the insert coin the refused to boot and got stuck at the htc one logo screen.
I tried to install ROMs but anytime i do it tells me it appears your device is not rooted [do you want to install SU now], but i know for sure my phone is rooted. the worst part is choosing to install or not to install SU still goes back the htc logo screen and remains stuck again..
I am really frustrated. If anyone could help me on this problem.