get image from http://www.armbian.com/banana-pi-m2-plus/
download ‘Jessie server’ the 7z package only 200+M, unzip ‘Armbian_5.13_Bananapim2plus_Debian_jessie_3.4.112.raw’ 1.3+G
write it to TF card and boot on BPI-M2+, root‘s password is 1234, can change it to pi/bananapi