To Unlock Your I-phone 4 use the remote Unlock service,get that at here Theunlockspot.com and Unlock it.
Instructions:
1. Wait for us to send you an email saying your phone has been activated or remotely unlocked.
2. Install the latest version of iTunes.
3. Make sure your Apple iPhone 4 phone software is updated to the latest version using the iTunes software.
4. Connect your Apple iPhone 4 to iTunes with a NOT ACCEPTED SIM card.
5. Wait until iTunes detects your Apple iPhone 4.
6. Disconnect your Apple iPhone 4 and reconnect it after 10 seconds.
7. Your Apple iPhone 4 is now unlocked.
*NOT ACCEPTED : We mean, to use a Sim card from a network other than the network your Apple iPhone 4 is locked to.