Zune 3.x -> 1.4 downgrade Tutorial

February 8, 2009 by Canberra25

I still don’t like the new firmware, and have been searching for a way to downgrade. Here is a way that worked for me!

FIRST: This only works with 30GB ZUNES! Don’t attempt to install on any other ZUNE!
ALSO: I AM NOT RESPONSIBLE FOR ANY DAMAGE DONE TO YOUR ZUNE IN THE PROCESS OF THIS. IF YOU MESS UP, YOUR FAULT!

Okay: Let’s get started!

NOTES:
-DO NOT (I REPEAT, DO NOT!) PERFORM THIS IF YOU HAVE PURCHASED MUSIC FROM THE MARKETPLACE!
-Do NOT (I repeat DO NOT!) uninstall the Zune 3.x software. You will be using it to restore the Zune. What I did here was trick the Zune software to think that the old firmware was actually the new firmware.

1) First, do a windows search (winXP: Start -> Search)
2) Edit the search preferences to search through hidden and system files, too.
3) Search for baseline.cab in all local hard drives.
4) When done, it should show 3 .cab files, KeelBaseline, ScorpiusBaseline, and DracoBaseline. (If they don’t show up, uninstall the Zune Software and download the full 3.x package. It should be around 300mb or so.) Right click on any of them, and click "open containing folder". The one we want is KeelBaseline. Drag this file to your desktop.
5) Find a download (If you don’t already have the file) for the Zune 1.4 firmware. You can find this on a lot of 2.x downgrade tutorials.
6) Once you have the old firmware file, rename it to KeelBaseline.cab (be careful not to name it KeelBaseline.cab.cab!)
7) Drag the old firmware (the one you just renamed) into the folder where KeelBaseline.cab once was (C:\Documents and Settings\All Users\Application Data\Microsoft\Zune\Firmware Updates).
8) Close all open windows.

NOTE:
-This part of the tutorial will erase all of the contents on your Zune device. DO NOT (I REPEAT, DO NOT!) PERFORM THIS IF YOU HAVE PURCHASED MUSIC FROM THE MARKETPLACE!
-Your Zune should not be plugged in to the computer until the tutorial tells you to plug it in.

1) Shut down your zune by holding the back and down buttons.
2) Restart it by pressing the play button.
3) When the Zune logo appears, immediately press and hold the back, center, and left buttons.
4) Your Zune should say "erasing content" or something like that.
5) After a minute, it will say connect to your computer. Don’t do that just yet. Start the Zune 3.x software NOW.
6) Once it is loaded, you can connect your Zune. It might want to reinstall, just let it do its thing if it has to. (Mine did not.)
7) It will say you need to update your device. Go ahead and click update. (DO NOT FREAK! Yes, it says 3.1 firmware, but it is not! We have successfully tricked the Zune software! It will also say it is downloading the firmware, which it does not. DO NOT FREAK!) You do not have to uncheck the "install games" box.

NOTE: After flashing the Zune, the computer software will say that the update failed. Yeah, let’s just let it believe that. It didn’t fail. It just didn’t flash with the firmware it wanted to. It has successfully flashed our Zune with the old firmware! =D

8) It should successfully flash the Zune with the old 1.4 firmware! When it is finished, you will be greeted with the lovely old firmware that you have come to know and love. =D

So now you have the old firmware on your Zune.

Thanks to ZielGuitarist, here is the rest of the tutorial.

Go to the Zune installation directory, open the Drivers folder and copy all of the contents to another folder in a safe place where it won’t get deleted.

Uninstall all remnants of the Zune 3.x software, and install the 1.x software from the installation disk (If you still have it). If not, find a download for it. When it says "scanning for device," plug in the Zune, and you should get a prompt for the missing .DLL file. Direct the search to the folder that you stored the 3.x DLL’s in.

Testimonial from ZielGuitarist:
"Presto, I’m now running the first release of the Zune software with 1.4 firmware. I’m syncing my library now with no issues whatsoever."

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