Restore iPhone 3GS bb 06.15.00

[Moazzam]

Hi Friends,
I'm having problem in restoring my iPhone 3gs which is on ipad's special bb.....
I tried 3 to 4 times to restore it to 6.1.3 but it didn't work.....I entered it in DFU mode using redsnow and then shift+restore on iTunes......It just gives error 1601.... Plzz Help me
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[PsstGreek]

Hi Friends,
I'm having problem in restoring my iPhone 3gs which is on ipad's special bb.....
I tried 3 to 4 times to restore it to 6.1.3 but it didn't work.....I entered it in DFU mode using redsnow and then shift+restore on iTunes......It just gives error 1601.... Plzz Help me
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You need to create a custom firmware.

 

[Moazzam]

You need to create a custom firmware.

How?? I dont Know how to do that...

 

[PsstGreek]

How?? I dont Know how to do that...

Google is your friend. Do a lot of researching before you attempt it.

 

[Baggio]

you need to downgrade your baseband before upgrading iOS 6. That iPad baseband was not meant for iOS and will not be stable on iOS 6. If you need that baseband for unlock, then get IMEI unlock or keep it on the current iOS.