This video shows how to unlock an HTC Shadow and it includes free unlocking instructions. Unlocking your HTC Shadow requires an unlock code that you can sometimes acquire from your phone carrier by calling up their support number and requesting one. In exchange they will request your HTC Shadow’s IMEI number, which you can get by simply typing *#06# and hitting enter. The 15-digit output is your IMEI number. In case, you don’t want to watch the video below, here are some some unlocking instructions that can be used to unlock most GSM or SIM based HTC cell phones:
How To Unlock HTC Shadow
1. Power on your HTC phone with an unaccepted SIM card in (or no SIM card at all).
2. Enter your 8-digit unlock code you attained earlier.
3. Your HTC phone should be unlocked and may automatically reboot!