I am lucky enough to got such situation: I have bought unlocked but locked used Iphone.
It was AT&T, but they had unlocked it:
IMEI Number 012419001719614
Request Date/Time 03/24/2014 07:39 PM
Request Number 10364967
Current Status ATT Mobile Device Unlock Approved
Completing Your Authorized ATT Mobile Device Unlock
Thank you for contacting AT&T Customer Care about unlocking your AT&T Mobile device.
We have reviewed your request and confirmed that the device may be unlocked.
But with new SIM it says "Unsupported carrier..." and doesn't work. SIMLock status is:
Free Apple check: 012419001719614
IMEI: 012419001719614
Model: IPHONE 4G 32GB BLACK
Activated: Yes
Telephone Technical Support: Expired
Carrier: AT&T
SIM lock: Locked
Apple! Help! I am stuck and really dosen't thik I did something so wrong I can't use my phone.
iPhone 4, iOS 7.1
