http://www.cellunlocker.net - #1 Phone Unlocking Site 1-800-507-9077 Unlock your HD7 HTC phone fast and easy. Unlock the HTC HD7 from carriers such as T-Mobile USA, Cingular At&t and 02 This is a tutorial and instructions on how you can unlock your HTC unit to free its network. After you unlock it, you can change to any GSM Carrier. Simply enter an unlock code. Unlock Tmobile HD7 Unlock Cingular At&t HD7 Unlock O2 HD7