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IPhone 3.0 beta 5 update: "ERROR: baseband update: fls failed to verify"

I am trying to update my iPhone to 3.0 beta 5, but I am getting this error at the end of the update process:

ERROR: baseband update: flags could not be checked

The phone then goes to the pink Connect to iTunes screen.

Any ideas on how to fix this? Thanks...

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2 answers


This error was either due to the fact that

  • I tried to update my iPhone software using Organizer
  • Restored the iPhone to my development machine instead of the machine that the iPhone syncs to


I finally figured out how to fix this. I used iTunes on the computer where the iPhone is synced and restored it to OS 2.2.1. To do this, I had to put the iPhone in DFU mode and click (Windows) in iTunes on the "Restore" button and select 2.2.1.ipsw.

Once the iPhone was restored, I updated the phone to OS 3.0 by clicking the Check for Updates button in iTunes and selecting OS 3.0 from the file browser.

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I have the same problem, although I can't seem to find a copy of the old 2.2.1.ipsw file. Any ideas where I can find this? I have looked everywhere in developer areas on the apple site. Can find sdk but not .ipsw ....



Try clicking the "Restore" button in iTunes. It will start downloading the latest firmware (2.2.1) for you.

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