HTC Sensation XE

You can get a new SIM card on any network for next to nothing from most phone retailers, supermarkets and the internet. To get the unlock code for a HTC Sensation XE, the best thing to do is first ask the people who had it locked in the first place, your network service provider. If you have been a long standing customer of theirs the likelihood is they will offer it to you for free, and may even offer to do the unlock for you in one of their high street stores.