We can provide you with an unlock code to unlock the Sony Ericsson Xperia X10 no matter what network it is currently locked to. As long as the new network supports that Android device, you'll be able to use it on your desired network by simply switching the SIM card.
If you have selected the unlock code option, you will simply receive the code by email with the instructions on how to enter it in the phone.
If however you have selected the software, you will be provided with a link to download it, which provides all the instructions on usage and troubleshooting. We will also provide your unique login information to access the software.