I wanted to install Android 5 HDMI on my BPI-M3 today. First I inserted the SD card and started the thing. Everything fine. Then I wanted to connect the device to my PC to install Android with PhoenixSuit on the eMMc memory. My PC did not recognize the M3. When I wanted to start again from the SD card, nothing happened anymore. When I insert the power cable (2.4A), the red LED lights up and nothing else happens. Even if I insert a different image, nothing happens, only the red LED lights up. If I press the power switch for a long time, the red LED goes off. If I press it again, it will light up again, but that’s all. Am I getting into any debugging mode? How can I get out of this? Can someone help?