How to give a SU privileges to an app I change the custom ROM from CM to RR, but now some apps can't be granted with a root access. Even when i type "su" in the terminal no question is prompted to grand root access to the app. I have update the SU binaries to the latest version also, but this didn't help.
Have you enabled root access in developer settings?
Go to:

Settings &gt; About phone


Then tap on the build number 7 times.
Afterwards, return to settings and enter 

Developer settings


In dev settings you will find this option:

Root access


Click it and choose either apps or apps and adb depending on what you want to do.
I also use SuperSU for SuperUser rights management.