I'm not responsible if you mess up your device this method worked for me use at your own risk
To get back to 10i use this:
[GUIDE]Using KDZ to get back to MS50010i firmware - Android Forums
DO NOT INSTALL CWM, OTA UPDATE WILL NOT INSTALL
:
3. Install and run Voodoo OTA Rootkeeper from Play Store. Make a backup using app .
4. Install OTA update (it might take forever for it to popup).
5. Run OTA Rootkeeper and restore su backup. Reboot
thanks to hubsabubs and duper1 from the f3 side for providing us with the method and kdz for getting back to 10i and nirhazine for finding the most stable root process