KingRoot's Superuser, while effective at its main purpose, is throwing up adware lockscreens. I'd like to replace it with SuperSU but have had difficulty finding instructions detailed enough for my low level of knowledge.
I tried just installing SuperSU from the play store but that failed.
When googling, I see results for kingroot, kingoroot, and I don't even know if they are the same or not.
The Superuser package on my device is com.kingouser.com version 2.1.6.8 (2168). The device is an Azpen A746, the world's 2nd cheapest tablet.
Detailed information on replacing this SuperUser with SuperSu would be greatly appreciated.