Hi,i unlocked my HTC desire with unlock codes and i got codes from unlocking4u
and i followed the instructions
Warning : Do not enter any wrong unlock codes on your HTC Desire mobile phones. If you enter over a certain amount of wrong unlock codes on your HTC Desire mobile phone, your phone may get hard locked and sometimes become unusable.
1. Switch ON your HTC Desire with a Not ACCEPTED SIM Card.
2. If your HTC Desire asks for a PIN code, then enter your SIM card PIN and press OK.
3. HTC Desire will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your HTC Desire is now unlocked.
*NOT ACCEPTED : We mean, to use a Sim card from a network other than the network your HTC Desire is locked to.
Each HTC Desire mobile phone has an unique unlock code.
and unlocked my mobile..