So I have a galaxy s4 m919 and flashed a galaxy s5 based rom using mobile odin. I was coming from cyanide mod 11. When I booted up and started to try to use Titanium backup it said I wasn't rooted. I went into Cwm and rebooted it asked if I wanted to restore root system/xbin/sure but I still don't have root. My phone now says I have a SM-G900F. Do I need to re-root my phone or can I take any easier steps? Also do I need to use my phone as a SM-G900F or is it still a m919 my phone just thinks it an SM-G900F? Kind of confused any help would be good. Thanks