BPI-M1_Raspbian_V4.0 MD5: 7FB84B8DAE841AA24A5C025AA83B7CE9
BPI-M1-Plus_Raspbian_V4.0 MD5: 3B539C0402E5C03D40A0D7175BE7465E
BPI-M1/BPI-M1-Plus_Raspbian_V4.0 supports features as follows: 1.Supoort Wifi firmware ap6210(BPI-M1-Plus). 2.Preload WiringPi (~/BPI-WiringPi, For more information, please check GitHub - BPI-SINOVOIP/BPI-WiringPi: (OLD) Supports BananaPi BPI -M1 / M1Plus / M2 / M2P / M3, (NEW) Version On BPI-SINOVOIP/BPI-WiringPi2 (supoort all Banana Pi boards in one version) ). 3.Update Kernel to 3.4.108 .