How to enter my Unlock Code on HTC, SPV, MDA, XDA, iMATE and T-Mobile G1 ?

Model : All (including G1)

1 - Switch ON mobile with a not Allowed SIM Card,
2 - If phone ask, enter the PIN code of your SIM Card
3 - Now phone will ask you to enter the unlocking code !

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 !