I have a friend's HTC One X (At&t) that he rooted and unlocked the bootloader and he was attempting to install a rom. I don't know what failed but he ended up relocking the bootloader and wiping the phone somehow and now it does NOT have any type of recovery. I can get into fastboot but any attempt to flash anything gives a signature failed error. I am familer with Moto and Samsung but not so much with HTC. Any help would be appreciated greatly.