I am using the latest RUU exe for the Sprint HTC One from HTC1Guru to return my phone to stock. It detected my phone and started the update. Now my phone just has a white HTC logo on the screen and on my computer the program has said "Sending..." for the last 4 hours, and the windows also says to not power off or unplug the phone from your computer and that this process will take 10 minutes (for the last 4 hours). Is something wrong? Anybody have any idea if this will still complete successfully and how long it will take? This is a downgrade from Cyanogenmod and the phone has always worked fine.
I used RUU M7 WLS JB 50 Sprint 1.29.651.7. The modelid and cid matched what my phone output in the "getvar all". I was afraid if I powered it off it might brick my phone or maybe it was expected to take a long time. So after reading your comment I went ahead and powered it off. It came back on just fine, like it had not been touched at all. Then, I had noticed on htc1guru that the Guru Reset file was a newer version than the RUU, so I grabbed that instead, rebooted into clockworkmod recovery and installed the Guru Reset file which worked fine then and put my phone back to stock.