sorry,
I think you have not tried with seus...
search here (first and second post)
guides
hope this help
Well, thank you for helping, but... literally nothing worked. I have tried every single procedure, method, everything I could find at XDA. The failed rooting must have really messed the phone up, 'cause nothing worked. As a last resort, I bought some credits from DaVinci team and their software succesfully flashed my phone. It's branded right now, but it's working.