- 1). Get your phone's IMEI number by typing "*#06#" into the keypad. It's this unique serial number that allows either your service provider, or an online remote unlocking site, to calculate your unlock code.
- 2). Call your service provider's tech support and ask for an unlock code. If they need a reason, tell them that you're traveling abroad or you're planning to sell your phone. Company policies vary, so if your service provider refuses to give you an unlock code, just buy one from a company like unlockitnow.com, mobileunlocksolutions.com, or foneszone.co.uk.
- 3). Retrieve the email that was sent to you, containing the unlock instructions. Depending on your phone and your service provider, the instructions will vary.
- 4). Cancel your contract and use your unlocked phone on the service provider of your choice.
Source...