A really annoying error that can arise for iPhone or Ipod users who go to restore their respective devcie in iTunes is the dreaded iTunes error 1601 or iTunes error 1602. When this error is thrown, you will either see a message indicating “The iPhone could not be restored. An unknown error occurred” or for the iPod touch: “The iPod “[username]” could not be restored. An unknown error occurred (1602).” If you receive this error on your iPhone or iPod touch there are two potential solutions that you can follow to correct the problem.
Apple Recommended Steps to Fix iTunes Error 1601
The Apple recommended solution to correct the error is to completely remove iTunes and the Apple Mobile Device support from your computer. Then, reinstall iTunes. Steps to do so:
Mac OS X
Step 1 – Disconnect the iPhone, iPod, or iPad that is throwing the error from your computer.
Step 2 – Open the “Finder” and drag the iTunes icon from the “Applications” folder to the “Trash.”
Step 3 – Select the “Go” and “Go to Folder” menu options.
Step 4 – Click “/System/Library/Extensions” followed by choosing the “Go” button.
Step 5 – Drag the “AppleMobileDevice.kext” file to the Trash and then select the “Go” and “Go to Folder” menu options.
Step 6 – Open “/Library/Receipts/” followed by choosing the “Go” menu button.
Step 7 – Drag the “AppleMobileDeviceSupport.pkg” file to the trash. This file may not be present in Mac OS X v 10.6 or later (ie you can ignore this step). The OS may prompt you for an administrator password when conducting this step.
Step 8 – Restart your computer and select “Finder” and “Empty Trash.”
Step 9 – Download and reinstall iTunes on your computer.
Step 1- Re-connect your iPhone, iPod, or iPad to your computer after installation is complete and open the iTunes application to complete fixing iTunes error 1601.
Windows
On a Windows computer when you receive the iTunes error 1601, you will have to remove iTunes, QuickTime, and other associated software components from your computer before you proceed with the iTunes reinstall.
Step 1 – Select the “Start” menu followed by opening Windows Control Panel.
Step 2 – Select the “Add/Remove Programs” application.
Step 3 – Remove the following programs in sequential order: iTunes, QuickTime, Apple Software Update, Apple Mobile Device Support, Bonjour, and Apple Application Support.
Step 4 – Enter the administrator password when prompted during each application removal.
Step 5 – Restart your computer and download the iTunes application from the Apple website followed by installing the program.
Step 6 – Open iTunes and then connect your iPhone, iPod, or iPad to complete correcting the iTunes 1601 error.
Alternative Steps to Fix iTunes Error 1601
If you take the recommended steps by Apple to fix iTunes error 1601 or 1602 and still not have success, you can take these advanced steps to fix the error. Take them at your own risk, however, they have been reported by other iPhone and iPod touch users to work. (Hat Tip to blog.iphone-dev.org)
Step 1 – If you are on a Mac open the “~Library/iTunes/Device Support” folder. On a Windows computer open, “c:\Documents and Settings\All Users\Application Data\Apple Computer\iTunes\” folder. The “c” drive label assumes the standard hard drive labeling is used on your computer, but could be different if you have iTunes installed on a different directory.
Step 2 – Download the PwnageTool application to your computer.
Step 3 – Delete “x12220000_4_Recovery.ipsw” from your computer and then run the PwnageTool program.
Step 4 – When asked by the Pwnage tool if you have ever “pwn’d” your iPhone before, select “no” as if this is the first time you have pwn’d your phone (even if it is not).
Step 5 – Follow the prompts in the tool to put the iPhone into full recovery mode.
Step 6 – Select the “Restore” option in iTunes using the new firmware that you have created with the Pwnage tool and iTunes error 1601 will be corrected.
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