tags:

views:

307

answers:

2
Q: 

Restoring older firmware through XCode?

I'm trying to restore iPhone OS 3.1.3 to a 3GS that has been upgraded to iOS 4. iTunes refuses to complete the install. What needs to be done? I am currently using the GM XCode. Should I be using the latest public stable version instead?

Update:

XCode reports that "The baseband cannot be rolled back".

+1  A: 

Enjoy. First rule of upgrading iPhoneOS/iOS is don't expect to be able to go back. If you want to go back, don't upgrade in the first place.

jer  2010-06-14 02:58:01
Thanks. Now what? It's not my phone. It was done for testing reasons.
Moshe  2010-06-14 02:59:19
Found this: http://www.tipb.com/2010/05/12/howto-downgrade-iphone-40-313/
Moshe  2010-06-14 03:24:43
A: 

Wow! 'ברוך ה! Craziness, this link had some answers: http://www.tipb.com/2010/05/12/howto-downgrade-iphone-40-313/

BlackRa1n gets the iPhone out of the reboot loop after a failed baseband rollback.

Moshe  2010-06-14 03:26:08

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