- Aug 6, 2013
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I currently have a jailbroken iPhone 4 on 5.1.1. After many attempts to upgrade to 6.1.3 getting many errors like 1601 for instance I am stumped. I have tried tinyumbrella, ireb, modifying the host file, downgrading itunes to 10.3. I am not sure what else to try. Any tips would be greatly appreciated.