Originally Posted by atlzonly89
Try booting in recovery, or download the tool to side load a working rom for your htc one
I have done this 2x, logobricking my tmo HTC One. I think, the first time I deleted the system directory in recovery. Second time was a firmware update and i buggered that as i nuked my system partition and recovery. Both times, sideloading recovery and rom is the only way that I was able to recover. I didn't lose any sdcard files, but it was a PITA to do. The only other way you might be able to do anything is boot to recovery, mounbt sdcard, and let Windows see the mount, push a rom to the card and install in CWM.
Sideloading will work though, read read read and you should be good to go.
HTC G1 - FroyobyLaszlo retired
HTC MyTouch 3G Slide - CyanogenMod7 given to daughter-Totally Destroyed
HTC MyTouch 4G Slide - Bulletproof 1.1 given to daughter-Totally Destroyed
HTC One S - ViperOneS 2.2.0 No moving parts for the daughter to break. She still killed it.
HTC One - TMobile 3.62.401.1 -Sense 5.5 Mine
Viewsonic G-tab TeamDRH ICS 4.0.3 (developer-video diary)
ASUS EEE Transformer Prime Wookie Prime 1.51
Respect your Dev's. They can always release a ROM with no backlight.