IOS – Update and Jailbreak iPhone 4 IOS 4.3 to IOS 5.0

iosiphonejailbreakupgrade

I am trying to update a jailbroken iPhone 4 IOS 4.3 to IOS 5.0. I have acquired the needed things from this link http://www.jailbreaknation.com/jailbreak-ios-5-5.0-on-iphone-4-ipod-touch-ipad-with-redsn0w. First, I got the error 3194 when when itunes was trying to verify the .ipsw file with apple. I fixed the problem by downloading TinyUmbrella and turning on the TSS server. But now I get a 1604 error when itunes trys to prepare the iPhone for restore. I sort of fixed that buy putting the iPhone into Pwned DFU mode using IREB or Redsnow 0.9.9b8. Now I'm getting error 1600. How do I fix this?

Extra Info:
Itunes version: 10.2
Yes I have tried normal DFU mode and Recovery Mode.

Thanks In Advance.

Best Answer

You can't update your phone to iOS 5.0 Not even if you have your SHSH saved. So nothing you do will allow you to install 5.0 right now. At least for the time being. Your only option is 5.01. The problem is that apple is no longer signing 5.0 and no shsh blobs will help you neither because a new security measure implemented on all 5.X

So if you need an unlock in order to use your phone I would highly recommend not updating to 5.01 because UltraSnow is currently not working on 5.01 despite of what baseband you have. No even with 1.59 baseband (but this is just until ultrasnow is updated to work on 5.01) If you don't need an unlock then you can safely update to 5.01 and do a tethered jailbreak using the latest redsn0w and pointing the ispw to 5.0

And before doing anything please update to the latest iTunes.

I hope this helps.

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