Phone playing up?
If your One X keeps freezing, you’ve forgotten the security codes or it just doesn’t work, take it back to factory settings. Important: This wipes everything on your phone, so if you’re not locked out try backing it up first. This won’t wipe your SIM.
With the phone turned off, press and hold the Volume Down button and then press and hold the Power button.
Release both buttons once the screen showing three Android images appears.
Press the Volume Down button twice to select 'FACTORY RESET'.
Press the Power button to confirm the selection.