BPI-M3 hardware spec docment 2.0 version
https://drive.google.com/file/d/0B4PAo2nW2KfnTFMza29rZkpNZUU/view?usp=sharing
Do you really call this a ‘user manual’?
This is just copy&paste from the M1’s manual (mentioning AV out which is not available on the M3, speaking of Micro USB power connector even with large pictures shown which does not exist because it’s a 1.7/4mm jack and so on) or other sources like www.raspberrypi-spy.co.uk/wp-content/upl...rotated-2700x900.png
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thank you , i wll let our RD update it . thank you .
your link is error . return 404. 
we have update new document for BPI-M3 today