Hello, I've the Rock64 4G v2.0 - 2017-0713. I tried to install different OS but I get similar errors and problems as yours. The SBC stuck after a while or lost the connection after high I/O traffic with my SSD on the USB3.
If It can help you, I describe here how I could installed a clean Armbian on my rock64:
- Download u-boot-flash-spi-rock64.img.xz from here and use Etcher to write to a new micro SD card; I used SanDisk Ultra 16GB microSDHC, Class 10.
- Download OS image “Armbian 5.69 Ubuntu Bionic default, Kernel 4.4.167” from the archive here and use Etcher to write to the