I'm completely lost with all the update stuff/etc on this site, basically my wife got a sony w580i phone from att and it has been crapped up with att's menu configuration. How do I get this phone back to sony factory specs? do I need new firmware or is it just a menu configuration somewhere I'm missing? Also if I do have to change to new firmware, is it already unlocked for att or do I need to do some additional steps to be able to use it with att?