Tag Archives: 6.15.00

Downgrade 6.15.00 to 5.13.04 on iPhone 3G(S) to fix GPS and Battery Problem Coming Soon After iOS 5 Public Release

Posted on September 22, 2011 by JoeSolutions

iPhone Dev-team is only work on downgrade 6.15.00 baseband for iPhone 3GS and iPhone 3G only. Unfortunately there’s no method to downgrade 4.10.01 to 1.59.00 baseband, and iPhone Dev-team didn’t even promise to work on this scheme. Here’s a bit … Continue reading →

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