How to enter an unlocking code to HTC, SPV, MDA, XDA, iMATE, T-Mobile G1 phones

Model : All (including G1)
  1. Insert a non accepted SIM card into your phone and switch it on
  2. If your phone asks for a PIN code, then enter your SIM card PIN and press OK
  3. Your phone will ask to enter an "unlock code"
  4. Enter the unlock code we sent to you by e-mail, and press the OK button
  5. Your phone is now unlocked

Model : SPV C500

1 - Switch ON mobile with a not Allowed SIM Card,
2 - The message "PUK2" appear,
3 - Enter the Unlock Code we send to you.
4 - Phone ASK for New Code PIN enter : 0000
5 - Confirm and compose : 0000**
6 - Click "Finish" and phone will show "Network is locked..."
7 - Enter the Unlock Code we send to you and click "Finish"
8 - Restart the Mobile who is Unlocked !