Hi everyone! I'm new here, and forgive me if this is a repost, but I had rooted my HTC one M7 to Cyanogenmod using the CM installer and loved it but I'm wanting to go ahead and get it back to stock to get Sense 6 when HTC puts out their official ROM. Anyway, I ran through fastboot and relocked the bootloader which it shows and I flashed using HTC's RUU file. I'm on version 4.3 with 5.0 currently and am trying to update to 4.4.2 with sense 5.5 but everytime I go to settings then AT&T Software update it says the system is up to date. I've tried clearing the services framework and I still can't get it to update. I've even tried putting the OTA file and pushing it in through the recovery and it just says invalid action. I'm not sure where else to go. Any help would be greatly appreciated!