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I recently brought an iPod 4g. And one of my friend who was an iPhone application developer helped me upgrade my os to iOS 5 Beta 1. Now he is out of station and my iPod is locked.

I cannot do anything with my iPod.

Please advice me on how to degrade the OS to my previous version?

Thanks & Regards,

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closed as off topic by Nathan Greenstein Aug 16 '11 at 18:06

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Does it show up in iTunes? How did it get locked? –  Odinulf Aug 16 '11 at 18:04
    
Welcome to Ask Different! Questions about pre-release software are off-topic for this site. See the FAQs for more details. Thanks. –  Nathan Greenstein Aug 16 '11 at 18:06
1  
Read the instructions Apple has posted on the developer forums on how you can get a newer beta. You will have to restore the device eventually when iOS 5 is eventually released, so you can wait for that or get a more current beta. This is how the betas work - it was clear this could happen in the release notes for that update. –  bmike Aug 16 '11 at 18:06
    
Take this as a lesson, developer previews are, surprisingly, for developers; and preview and beta means not ready for release, in other words things like this will happen. –  Jonathan. Aug 16 '11 at 23:25

2 Answers 2

up vote 2 down vote accepted

Well, this is timely.

Download the iOS 4.3.5 iPod touch firmware image, put your iPod touch in DFU mode, then use iTunes to restore to 4.3.5:

  1. Launch iTunes.
  2. Connect your iPod to your computer.
  3. Shut it down by pressing and holding the power button for five seconds, then sliding to the right.
  4. Press and hold the home and power buttons for ten seconds. Afterwards, release the power button, but continue to press the home button until iTunes detects the iPod.
  5. If iTunes doesn't ask you for the file, -click the Restore button. This should let you select the .ipsw file you have downloaded.
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Not sure you can downgrade but try: Settings -> General -> Software Update ... there have been new Beta's so that might solve the problem.

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Did you read the question? Its locked. I would downvote you but you only have 3 rep. –  Odinulf Aug 16 '11 at 18:04
    
Ah, ok, point taken. –  Jim Morrison Aug 16 '11 at 18:06
    
And Software Update didn't work until Beta 3. –  CajunLuke Aug 16 '11 at 19:33

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