I recently upgraded to the 5 and my sister begged for me to send home my old 3G to the UK.. I figured it'd be easy enough to switch out sims and voila!... wrong 🙁 She took the phone to the shop and was told the only way to have it running would be to continue on the AT&T network which would cost a fortune (and im not paying it).. and he mentioned even if he unlocked the phone it might still not work as its older and couldn't do updates 😕 She was so excited about getting the phone and I'm really bummed she cant use it.. I believe her network is just a pay as you go.. I just dont understand as the phone is no longer on a contract.. Any suggestions before she mails it back to me where it'll belong to my kids as an itouch (which they'll be excited about) !