Jelly Bean update for an Unlocked AT&T HTC One X? Possible Duplicate:
  When will my device get the Android 4.1 update (Jelly Bean)?  




Now that the Jelly Bean update for the One X has been made official for atleast the GLobal version: http://www.engadget.com/2012/10/02/htc-jelly-bean-one-series/

Would I be able to update an Unlocked "AT&amp;T" HTC One X when the update is releasaed?

Thanks
Installing the Global version of 4.1 firmware on the AT&amp;T-branded One X model will most likely be impossible due to the hardware differences between the different variants of this handset:


  [AT&amp;T variant] is 0.4mm longer than the international model, and
  features a 1.5 GHz dual-core Qualcomm Snapdragon S4 (MSM8960) SoC with
  an integrated on-die LTE (4G) modem instead of the Nvidia Tegra 3 [found on the international model] 
  which requires an external modem and is LTE-incompatible, and 16 GB of
  internal storage instead of 32 GB.


You will either have to wait for HTC and AT&amp;T to release an official version of Jelly Bean for your model, or take the plunge and root, bootloader unlock, and flash a custom ROM on your own if you want 4.1 sooner.  Instructions for doing so can be found at XDA-developers forums.