It is quite simple (if you run the 0505 image of android). Just open SuperSU app and let it work its charm (installing dependencies). Do a reboot, and go get a root checker app from the store to check if it is all ok.
This worked for me
FYI, I used the PhoenixCard image of android 5.1.1 build 20160505 on my Pine A64+ 2Gb
This worked for me

FYI, I used the PhoenixCard image of android 5.1.1 build 20160505 on my Pine A64+ 2Gb


![[Image: PicsArt_02-23-08.31.50.png?psid=1]](https://ns4zgw-bn1305.files.1drv.com/y3mkAQa_htCwYXSXktky0OLAiG89Pu5xnXzC95xcOatsobchbg2NXHsjfvncyeSLI-ki4ij1oUGqKmKli8BOXQiMTbLWYhN74IqTh2KbFRup-fPiRfqLpsaYgykOcLBU1Wr1qz9ko2yfZ_pm2Wp7x_fhZ7vf02d4qp6iUDa2sTiypk/PicsArt_02-23-08.31.50.png?psid=1)