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11-01-2012, 08:07 PM #1iPhone 4 is IMEI UNLOCKED but not accepting T-Mobile SIM
Could anyone tell me why this is happening. The IMEI is shown to be unlocked on many IMEI CHECK sites but will show invalid SIM OR SIM failure after inserting T-Mobile working SIM. However, inserting an AT&T SIM the phone works fine..
11-01-2012, 08:15 PM #2
Did you go through activation in iTunes after being unlocked?
You can also use this method without restoring if you haven't activated.
Last edited by blkcadi; 11-01-2012 at 08:17 PM.