Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

I used redsn0w to get an untethered jailbreak on my iPod touch. And now I want to remove it.

I've seen people mention that you need to backup the iPod to iTunes and then restore it. However, when you restore it, iTunes will install the latest OS (5.1) on the device. This isn't good if you plan on jailbreaking again in the future (i.e. you want to leave it on 5.0.1). So is there any other way I could remove the jailbreak from the device and keep 5.0.1 on the iPod? Would using "Erasing all content and settings" on the iPod work?

share|improve this question
add comment

2 Answers 2

Agreed, you have to restore your device in order to remove the jailbreak.

But it's not that easy to restore to an earlier version of iOS - Apple verifies each restore of iOS and only lets you restore to the latest version (currently iOS 5.1). If you want to restore to an earlier version, you have to artificially verify the restore.

For an iPod touch, you can artificially verify the restore if you have pre-saved SHSH blobs for the device, by stitching them into custom firmware and using that to restore. Here's a guide to seeing if Cydia managed to save SHSH blobs for you and using them to restore your device. If Cydia didn't save SHSH blobs for you, you may be able to use redsn0w or iFaith to "dump" partial iOS 5.0.1 SHSH blobs off your device and then use them to stitch a custom IPSW - see this guide to using iFaith.

share|improve this answer
    
This is correct, and those links are up-to-date, too. –  Andrew Larsson Apr 23 '12 at 17:11
add comment

This question holds a part of the answer. Basically you have to restore your device.

Is you want to install a particular version of iOS on your device then you will have to locate the official firmware on your hard drive (.ipsw file) or download it from Apple.

Then instead of restoring like usual you will have to hold the option key, hit restore and then you will be given the opportunity to select the file to use for the restore.

share|improve this answer
    
This won't work unless Apple is signing iOS 5.0.1 (which they're not), sorry. –  Andrew Larsson Apr 23 '12 at 16:49
    
@AndrewLarsson. Well then a 3rd party firmware tool will be necessary. –  Coyote Apr 23 '12 at 16:53
    
Yes, you need to insert your SHSH blobs into the .ipsw using a tool such as iFaith. –  Andrew Larsson Apr 23 '12 at 16:54
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.