How to determine original carrier for unlocked/jailbroken iphone 3GS?

[hstraf]

Hello,

I inherited a jailbroken unlocked iphone 3GS (baseband 6.15.00, so GPS does not work)...

I am trying to figure out who was the original carrier. If it was AT&T, then perhaps I can contact them to request an "official" unlock, so that GPS can be restored?

What do you think? How can I know who was the original carrier that the phone is locked to?

Thanks.

 

[sidhantchadha]

Hi,
there's a tool called iTools for iPhones! Just download it, open it, connect your phone to your computer, and it will give you all required details!

 

[zig9449]

Yup. thecreator is right...........about the baseband part, and the GPS too, but that may be fixed. who knows.

And there is no need to go on a quest for what the original carrier fo the phone was. Is was AT&T. It could not possibly be any other carrier. Only iPhone 4 and up were used on different carriers. The 3GS was and always will be locked to the AT&T network as no other carrier has the iPhone 3GS.