I'm from Sri Lanka and i'm using an iphone 3gs which I bought from USA.(T-mobile).I used it on 4.3.3 over 1 year, but when after i updating it to 5.1 it needed to be unlocked.so I again downgraded it to 4.3.1.Now I have jail broken it.But the only problem is unlocking.
The case is baseband has been upgraded.i don't know what was the previous baseband.but now it displays it as 06.15.any how it does not works with ultrasn0w.whenever i install a sim in it, iphone searches for network and says No Service.
When a gave it a repair shop they said that the baseband have to be downgraded and that's too hard 2 do.
I doont know how to downgrade 3gs baseband and get my i phone back.now it has become a good Ipod touch.errrrrrr!!!!!!!PLZZZZZZZZZ anybody help mee????
The case is baseband has been upgraded.i don't know what was the previous baseband.but now it displays it as 06.15.any how it does not works with ultrasn0w.whenever i install a sim in it, iphone searches for network and says No Service.
When a gave it a repair shop they said that the baseband have to be downgraded and that's too hard 2 do.
I doont know how to downgrade 3gs baseband and get my i phone back.now it has become a good Ipod touch.errrrrrr!!!!!!!PLZZZZZZZZZ anybody help mee????
