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Fix iTunes Error 1601 when Restoring iOS 4.3.3 IPSW Created by iFaith

Hi guys, I am trying to restore my iPhone 4 on iOS 4.3.3 using an IPSW created with iFaith tool. I have managed to save my blobs as well as create a signed IPSW of iOS 4.3.3. But when I try to restore the created iOS 4.3.3 firmware iTunes returns error 1601 and right now I am stuck in DFU mode. How can I fix this?

Asked by: Timothy from Spring Lake Park, Minnesota

Hello Timothy, well, this is quite a normal issue when restoring an iPhone using iTunes. Anyway, in order to be able to restore your iPhone to iTunes without getting any iTunes 1604, 1603, 1602, 1601 or 1600 error, you will need to put your iPhone in Pwned DFU mode state. To do that, you can use iREB RC4. The step by step guide on how to use iREB is posted below;

Step 1: First, you will need to download iREB RC4 and save it on your desktop.
Step 2: Connect your iPhone 4 into your PC via USB cable and launch the downloaded iREB-r4.exe.
Step 3: Then put your iOS device in DFU mode:

  • Press Power and Home button at the same time for 10 seconds
  • Release the Power after 10 seconds but continue holding the Home button

Step 4: iREB will soon start injecting the Limera1n exploit in the iBoot.
Step 5: Once completed, iREB will inform you that your iPhone is in Pwned DFU mode.
Step 6: Then wait for at least 10 seconds or so and launch iTunes.
Step 7:  Once iTunes is opened, select your device at the left side panel. Make sure that you are pressing SHIFT while clicking on the Restore button, browse for the custom iOS 4.3.3 IPSW file and hit OK to commence the restoration process. If you have encountered error 16xx again, immediately disconnect your iPhone and perform the entire process again.

If iREB doesn’t work, you can use Redsn0w to put your iPhone in Pwned DFU mode. The tutorial on how to use Redsn0w can be found here.

That’s it. You can now restore the custom iOS 4.3.3 on your device without getting any 16xx error.

Fix iTunes Error 1601

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