Need help re-rooting my Sprint Note 3 running CM12.1 Nightly 5.1.1 I installed a Nightly build of CM12.1 earlier today, but a few minutes ago when I tried to install an app that requires root access it said I wasn't rooted. For some reason I figured this was a given because I just flashed a custom ROM, but I am no Android developer (yet) and have no idea why it's not rooted. The ROMs that I installed prior to this didn't have this issue. Or it was spelled out in the install for me and I don't remember re-rooting them after I installed them. Either way, I need help with a method of rooting my Sprint Note 3 now and believe I need to use a specific tool or app to do so, and do not want to have to remove CM12.1 5.1.1 to do it (if at all possible). I also didn't want to run the wrong tool and screw up my phone because it was the wrong version of Odin (or whatever app I need to re-root). I'm pretty sure I have to use something specific to 5.1.1 but again, I'm no developer or heavy ROM flasher. If someone is a pro with Cyanogen ROMs I could really use some expert advice here. Thanks in advance!
Enable developer options and in developer options menu you will find an option 


  enable root access


If not download supersu zip file and flash it via recovery and you will get back root access.Flashing latest supersu willnot affect the data.So no need to worry about data loss at all.