After I have problems with M3 suddenly shutdown. I have read many explanations in this forum and find out my power adapter for Dc jack was crappy. So now after got a new better one(5v, 2A). I was finally enable to connect one HDD via USB on M3. But it still shut down some times if thd HDD was heavy loaded while read write. I think a powered hub is my next try.
But what I want to ask: After I shut down os (Jessie 8 from 2018-08-xx), the HDD drive is still spinning and I have to cut off the power to get it stopped.
Have your guys got the same experience? How can I stop the usb drive after shutdown without to cut off power supply ?