Hi. I buy in USA HTC ONE X AT&T phone.
I live in Europe and I do not belong to the network AT & T. Do I get the android 4.2.2 update?
For instructions on how to update your phone > click here.
Let me know if it works.
Yes, it should be possible. I bought a Samsung phone and tablet from Hong Kong, but I can update both devices here in the Philippines. Just do the update using Wi-Fi.