He’s talking about a Raspberry Pi in there but the concept should be the same; the RockPi and Raspberry Pi have the same CPU architecture. Make sure you have the 8GB RAM Rockpi. Some responses on that thread indicated they’re having problems with only 4Gb of RAM.
I did have problems with my 4Gb Rockpi also and I just gave up. I just tried it with one of my old Rockpis lying around. If you have the 8Gb variant, this should be worth trying out.