iPhone Unlocking ATT iPhone 3Gs on 6.0 (10A403) 05.16.07 baseband?

mkvelidadon

macrumors newbie
Original poster
Mar 2, 2014
22
21
Hi I have a iPhone 3GS running 6.0 (10A403) with the 05.16.07 baseband and a serial of (xx939...) and would like to know if it's possible to unlock? I want to use it with MetroPCS. Please let me know if there's any way I can do this.

Thank you.
 
Last edited:

dhlizard

macrumors G4
Mar 16, 2009
10,213
118
The Jailbreak Community
Two options:

An IMEI unlock from carrier who sold phone or aftermarket vendor
or
Flash the iPad baseband to phone, then downgrade the baseband to 5.13.xx to unlock with Ultrasn0w
 

mkvelidadon

macrumors newbie
Original poster
Mar 2, 2014
22
21
Two options:

An IMEI unlock from carrier who sold phone or aftermarket vendor
or
Flash the iPad baseband to phone, then downgrade the baseband to 5.13.xx to unlock with Ultrasn0w
I read I can't downgrade my baseband with the serial number I currently have. Has that changed? (939) Week 39 to be exact.