With all of the hype that the iPhone 4, iPad 2 and iOS 4.3 currently going on, you might have missed this news. I (and others) have encountered a rather bad issue (Error 29) when trying to upgrade an iPhone 3GS’s iOS to a later version. It seem that is related to previous versions of iOS as well and is NOT just limited to iOS 4.3. There is definitely an issue with iPhone 3GS’s that have had their original battery replaced by a 3rd party or done by yourself.
Here is what happened to me. This weekend, I tried to update my iPhone 3GS to iOS 4.3 from a previous version of iOS. First, I made a backup of my iPhone (prior to trying to install iOS 4.3). It is always important (if not critical) to do a full backup of your iPhone prior to doing any type of upgrade. Once I had done this, I went ahead and tried to install the upgrade and I got an Error 29 (seen above): “The iPhone could not be restored. An unknown error occurred (29).”
I’m usually not daunted by issues like this. In fact, this had happened to me before and I was able to use iRecovery to resolve the issue. You can see my blog post on iRecovery here “How To Get Your iPhone Out of a Recovery or Restore Mode Loop“.
Here are ALL of the things that I tried to resolve (none of which worked): [click to continue…]
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