I also had the Debian booting problem. I'm using an official 16GB Sandisk ultra microSD. I board kept rebooting even with a 5V 2A adapter. I overcame the problem by zeroing out the microSD before writing the image (.img) file. Under Linux (running on the PC) this can be done with: sudo dd if=/dev/ze...

After looking at the matrix library code for the nanopi2, I discovered that the library supports the one-wire ds18b20 temperature sensor. However there's no indication as to which pin is the w1-gpio driver attached to. Can somepne please confirm that pin to which the one wire driver is attached to? ...