https://forum.armbian.com/topic/7511-nanopi-m4/ UART is accessible on a standard connector but with unusual speed: 1500000 If you don’t have USB Type-C PSU, you can power the board via pins 4 (5V) and 6 (GND) of the 40-pin GPIO1 header Powering related troubles are possible since USB Type-C is not PD-compliant Enable video and 3D acceleration