Nov. 8, 2012
-- GSMUnlockLabs (http://gsmunlocklabs.com)
AT&T iPhone unlocking service is the same as a factory unlock for your iPhone. No need to void your warranty by Jailbreaking your device. No need to use some attachment for your SIM.
Unlock AT&T iPhone (http://gsmunlocklabs.com/
Using your IMEI GSMUnlockLabs (http://gsmunlocklabs.com)
will update the database at Apple and register your device as "unlocked". The whole process will take about 4 hours from you submitting your IMEI to having your AT&T iPhone unlocked.
Once GSMUnlockLabs (http://gsmunlocklabs.com)
notifies you that the iPhone is unlocked you'll need to complete the following steps:
Install or update to the latest version of iTunes
Update your iPhone via iTunes
Insert your new (non-AT&
T) SIM and connect to iTunes
Wait for your phone to be detected
Disconnect and reconnect the phone and your iPhone is now permanently unlocked!
This "factory unlock" is permanent and your phone will never "relock". This AT&T iPhone unlocking method supports all generations of AT&T iPhones. It could not be easier!
) - AT&T iPhone 5 Unlock