Find out how to repair Sudden error 2601 in iOS whereas downgrading the usage of Redsn0w zero.9.15b


Error-2601While performing the downgrade in order to restore your device to the previous iOS using Redsn0w, “depending  on the iPhone 3GS / 4 , you might come across the Unexpected error 2601 . We have a out together a guide that will help fix error 2601 that occured while checking the file system on Redsnow 0.9.15b1, an update has been released to fix this issue

Unexpected error 2601 fix:

 Version 0.9.15b2 fixes a few issues for 3GS owners: old-bootrom awesomeness is no longer forgotten directly after a restore, and iPad baseband upgrade/downgrade support is fixed (same production date cutoffs apply!).  If your 3GS is currently tethered at 6.0 even though you have an old bootrom, just re-run redsn0w’s Jailbreak step (no need to restore).  Don’t forget you can add some pizzaz with your own boot logo or a nerdy verbose boot.



Because you are tampering with the iOS firmware itself,  proceed at your own risk. Only those who know the work and are confidence enough to face anything no matter what happens, please read further details to perform the process at your own risk.

Also, this is error that occurs in this environment can be solved by this method, Please note that I do not know if you can solve in all otherwise.

Targeted devices

This method is intended for the following devices, please note that other devices can not be done in.

  • iPhone 4
  • iPhone 3GS

Unexpected error (2601)

“Error would occur in Redsn0w (2 601) Unexpected error and does this. “


Error out and say what or when, iPhone 3GS / four alone Redsn0w to restore downgrade update may occur when you try to. 
Often, it is the Windows version that went out in particular.


Download Redsn0w tool for Windows/Mac operating system

Because it requires firmware version you want to downgrade restore update, I’ll keep the previously downloaded. 
In addition to iOS 6.0, all the iOS firmware  that can be downloaded in our download page. I’ll need to download the firmware version to suit its own purposes.

Required software

Because it is the same thing that can be either, please keep it likes to download and install. 
In addition, if the software has a “features not unzip the ZIP file, you can delete the files as part of the contents”, I do not mind even if you use the other ones.

How to fix the error 2601

The fact that I have been doing is simple, I may not be obvious method is to get used to it. 
Please try to run from read to the end before you make once.


  1. Before working with Redsn0w, was a little error in the firmware as a counter measure work you must have. 
    We will introduce the work of error measures. Just extract the firmware with 7-Zip or WinRAR
    The term ” open we will be not able to extract it, “and that you are ready to open the file viewing of contents. 7-Zip right-clicking “the firmware if the 7-Zip “→” Open Archive Select “. WinRAR “right-click if opened from the program“.

      1. “From this Firmware please open by double-clicking the “Folder.
      2. Contained in this folder delete the file part that is the purpose of this.
      3. Number or name of the file to be deleted, but the firmware is different, basically, “the beginning of the file name other than the folder ICE to delete files that have the “.
  2. After selecting Delete these files, right-click ” Delete “or” Delete a file or run a “, Delete key we can be done by pressing the buttton.
      1. When you run the Delete, Delete rebuild and firmware will be carried out, will wait until it is finished. 
        I think I know the file type to be like the picture below and remove rebuild is complete, check the medium and is gone. 
        Prior work is complete if it happened.


    Restore iOS using Redsn0w: 

    Firmware adjustment work is now complete, please run the update downgrade restoration work as normal using Redsn0w. 
    At this time, “in the scene and select the firmware and select the firmware you have made prior work done I will not forget “things. It is that choice instead of short normal firmware.

    Please refer to the below for how to use each of Redsn0w. 
    Also, please read the next section to work but will still contain one or after the following work.


    Get out of recovery mode:

    Select the firmware I think you have made a prior work, and I worked at restoring downgrade update Redsn0w. 
    The current status of work completed to the end even though no errors appear in Redsn0w recovery mode I think is still no one?

    You might think that is has failed, in which I answer is. 
    Delete the class file so that some have stopped in recovery mode I will be successful. 
    Redsn0w “in order to be able to boot up normally this Recovery Fix we try to use a feature. “


    Remain in that state, “to launch the Redsn0w Extras “→” Recovery Fix try to select a function. “DFU mode as directed and put in, it will follow. Add to DFU mode procedure will be the following.

    • The power button for 3 seconds , press and hold me.
    • Without releasing the Power button, Home button together for 10 seconds , press and hold us.
    • Leaving only the power button, I press and hold the Home button.

    Work will begin immediately on the Redsn0w and able to go into DFU mode, I’m okay if you remove your finger happens. 
    Please go carefully without rushing because it can be done from the beginning, even if you fail to enter into DFU mode if.


    If the Restoration Restore work is a hit, it is possible for you to to start out restorationWhat you’re doing is modest, and do be mindful does now not a lot time-ingesting but in addition whenever you get used to it. As well as, the long run we may well be helpful, because it lets you skip the elements that you need to delete the file if left within the firmware to do the method!

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