Downgrade help?? 3Gs 6.1 BB 05.16.08

Phil Boyd1

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Feb 9, 2013
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Hi all I am on 6.1 and stupidly upgrade my BB to 5.16.08 which cannot be unlocked. So I have found this guide on how to downgrade my BB to 4.1 and then back up so it can be unlocked. Downgrade iPhone 3GS iOS 6.1 Baseband 5.16.08 to 5.13.04 for Unlocking | Beijing iPhone Repair

So I do all of the steps but iTunes gives me the error (the iPhone "iPhone" could not be restored because the firmware file is not compatible) any ideas on how to get past this?? Cheers.
 

Peligro911

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Jun 1, 2011
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You prob have to downgrade the firmware also to support the bb ..


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