I've successfully installed the android 4.3 on my Bell i317m. I've used the OP file in the first post with mobile Odin.
So basically, you just have to first backup your modem with TWRP, then extract the I317UCUBMJ4.7z file on your phone and with Mobile Odin, choose the right img file for each section then flash. After this, you can flash TWRP for the t0lteatt with PC Odin and then restore the modem you first backed up.
Now I'm searching to get root privilege back on my i317m, I'm getting blocked by Knox security warning.
EDIT : Ok got root access now. I've used CF-Auto-Root for my t0lteatt
http://xdaforums.com/showthread.php?t=1980644 . After installing this with Odin, Knox will block it but you just have to go on Google Play and update the SuperSU apps. Open it and follow the instruction to get root back. After this you can disable Knox with a Terminal Emulator by using this command :
su pm disable com.sec.knox.seandroid
Voila! I hope this can help some i317m users