Nobody ever written anything about unrooting the images so I thought I share my own findings. If you're having trouble making some online banking or video services work (in my case it was Showmax video app), the following procedure might help. Tested on ayufans' 6.0 TV most recent image:
1. Run SuperSU.
2. After it asks for installing su binaries select yes and choose normal mode.
3. Reboot (this is done automatically IIRC)
4. Run SuperSU again, go to Settings and choose full unrooting down the bottom of the list.
5. Last and final step: go to Android settings and perform a factory reset (curiously enough you won't loose your apps).
Voila, your Pine64A/A+ is now unrooted.
1. Run SuperSU.
2. After it asks for installing su binaries select yes and choose normal mode.
3. Reboot (this is done automatically IIRC)
4. Run SuperSU again, go to Settings and choose full unrooting down the bottom of the list.
5. Last and final step: go to Android settings and perform a factory reset (curiously enough you won't loose your apps).
Voila, your Pine64A/A+ is now unrooted.