Sorry it's been a while, i thought there was a root zip in my OP. Once you have booted into twrp or cwm using the "fastboot boot recovery.img" command, you should be able to flash one of
these. that should root and install recovery as well as the jbr400 data fix all in one swift move. let me know how that works out, I'll monitor the thread for the next couple of days. I've been out of the game but I'm kinda swinging back into it...
just put it on your sd card and when you boot into recovery with fastboot, pick the zip file from your sd card to install