Hold power button for about 7-8 seconds to power the device up. Boot log: http://ix.io/1r19 Known problems: HDMI is not working and will probably never, onboard wireless is too fragile, disabled by default.
works: serial console, 8 cores, USB, SATA, HDMI, DRM video driver A83T chip isn’t SATA capable and therefore the SATA port is provided by a (very) slow GL830 USB-to-SATA-bridge https://forum.armbian.com/topic/474-banana-pi-m3/
Some devices powers off on load
For proper hardware support you need to edit /boot/armbianEnv.txt and add: fdtfile=sun7i-a20-bananapi-m1-plus.dtb following by reboot.