have been several complaints and requests asking how to fix the 1600, 1601, 1602, 1603, and 1604 errors in iTunes during the firmware restore. This error occurs when you are trying to restore your jailbroken custom iPhone 3.1.3 .ipsw file which you probably create using either PwnageTool or Sn0wbreeze. The error which you may get will look like this:

The iPhone “[your iPhone]“  could not be restored. An unknown error occurred.

To get around this issue, there is a handy tool called iREB (iTunes Restore Error Bypasser) for Windows which can help you bypass the error when you are restoring .ipsw files in iTunes. The latest version of this program works with the iPhone 3.13 firmware running on the original iPhone, iPhone 3G, and iPod Touch 1G / 2G. Follow the steps below to get past the error so that you can restore iPhone 3.1.3 firmware in iTunes.

Fix 16xx Errors During Custom Firmware Restore in Tunes:

Step 1:

Start iTunes and put your phone into DFU mode:

Press and hold the Home button and the Power button at the same time. After exactly 10 seconds release the Power button. Continue holding the home button until you iTunes pops up a message telling you that it has detected an iPhone in recovery mode. At this point your iPhone/iPod touch screen will remain black.

Step 2:

Now close iTunes and Start iREB on Windows.

Step 3:

Simply select your device and wait for a few seconds until you get white or a red screen on your iPhone or iPod touch.

Step 4:

Now open iTunes and select your phone from the sidebar in iTunes. Now press and hold left “Alt” button (“Shift” button on Windows) on the keyboard and then click on “Restore” (Not “Update”) button in the iTunes and then release the “Shift” button. Select a custom .ipsw file and restore it.

The instructions as to how to fix the 1604 iPhone restore error can be found below, written by Carlos Leopoldo from Redmond Pie:

Steps to fixing 1604 iPhone restore error:

1. There is no need to reinstall iTunes or whatever. Keep the same version that you have used to restore or backup previously.

2. Make sure that iPhone is disconnected from your computer and that iTunes is closed.

3. The following step of fixing 1604 iPhone restore error is Windows XP specific, if you are a Mac user, you may have to locate the folders yourselves as I am not sure: Go to folder C:\Documents and Settings\<username you use to login to windows>\Application Data\Apple Computer\iTunes\iPhone Software Updates. You will see one or more files. Cut and paste them somewhere else. Do not delete them in case the steps does not work for you, you can still copy them back to the folder. You can find out your username by doing a Ctrl-Alt-Del. If somehow you cannot find the folder, you are probably in the wrong user directory.

4. Launch iTunes and put your iPhone in recovery mode. Refer to this article on Unable To Restore iPhone on how to do put iPhone in recovery mode.

5. Proceed with restore and iTunes will download the update online. If you are downgrading to a lower version, do step 3 and leaving only the firmware file that you want to downgrade to. Double click on the file and iTunes will begin the restore.

That’s it! iTunes should now be able to restore your iPhone or iPod touch to the latest iPhone 3.1.3 firmware without any problems or errors.

One of the things to note here is that iREB is not for jailbreaking, it is only used for restoring custom .ipsw firmware files via iTunes without any errors.

Download iTunes 9.0.3 for Windows and Mac [Link]
Download iREB for Windows [Mirror 1] [Mirror 2]

Let us know about your results, share your thoughts, and ask any questions in the comments below!

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Authors: _GadgetNews

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