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CallingAllGeeks

iPhone Restore/Update Error 1603 [Solved]

iPhone Restore/Update Error 1603 [Solved]

I was trying to upgrade my iPhone 4 to iOS 4.1. Since it’s an unlocked iPhone, upgrade should not be an issue, but my iPhone started giving error 1004 and error 21. Initially I was trying to update using Windows system but after this issue, I moved to Mac.

iphone-1603-error

While trying to update my iPhone, I started getting Error 1603 which is unusual error. I tried lots of time to restore and fix this issue (As suggested by many other forum) but it didn’t helped.

Luckily after some hit and trial I was able to fix this issue by removing my sim card and sim tray and updating it again. Voila! within minutes my iPhone 4 is updated to iOS 4.1.

So if you are also stuck in the same situation like me, I would suggest remove your sim tray and try updating your iPhone.

Do let us know if this doesn’t helped you in your case.

Article by Harsh Agrawal

Harsh has written 178 articles.

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{ 1 comment… add one }

  • pizza funghi June 25, 2011, 3:12 pm

    Thanks! This solved my upgrade problem on my iPad 1G and iOS 5 beta2.

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