Well with persistence I finally got this to work.
There is another link farther down in your link which I think has easier to understand instructions:http://forum.xda-developers.com/show...8&postcount=55
However, the real key comes in step 3.
I got stuck on step 3 for a while because your link shows three different options for downloading. I assumed that all three were the same. Actually option A and C are the same (http://d-h.st/qEY
). They seem to be a TWRP backup. I checked the md5 of my download and unzipped this file to the TWRP backup directory on my phone. But no matter what I tried it always failed to restore.
I finally figured out that option B is a different download (https://mega.co.nz/#!vwJGhYjb!A6D3Tj...N3hTfC6uSgJSZA
) and it is actually a ClockworkMod backup even though it is labeled as TWRP. So I flashed ClockworkMod to my recovery and unzipped this download to the ClockworkMod backup directory on my phone. I was then able to successfully restore this backup and downgrade my phone to 1.26.502.10.
After that I just had to relock my bootloader, and use the RUU file to get to 1.26.502.12.
I then unlocked the bootloader again, flashed TWRP to my recovery again, and used that to root the 1.26.502.12 install.
I was then able to finally use revone successfully to S-OFF the phone, remove the tampered tag from the bootloader, and set my SUPERCID.
Finally, I installed Android Revolution 41 mod running Android 4.4 and everything is working great!