I have tried two different computers. One running XP one with Windows 7. They see my HTC One (M7) just fine but they dont see this HTC One X. Do you think there is something possibly wrong with the phone? The phone seems to be charging through the USB. If it was a driver issue I dont see why the HTC One M7 would connect. I have tried installing HTC Sync also the all in one toolkit drivers. Also I don't think its drivers because I've used the same toolkit on several other HTC One-Xs on the same computer with the same drivers and its worked.
In fastboot it shows fastboot ac instead of fastboot usb. I have also tried various USB ports and three different cables. At this point I am thinking my phones usb port is toast.
If the USB port IS gone is there anyway I can install the android 4.2 ATT update with sense 5? This still has the old android version on it. Could I possibly transfer files over bluetooth do it that way?