BPI-M3 Is it possible to use usb otg to power on?

We install android image to the bpi M3, and connect to our PC.We want to use the usb otg to power on, but the test results below:

1、one usb data line to power on, it is imposible.The android system will restart when it enter the home page 2、one usb line which can only supply power(not data transfer),the android system will run normally, no restart anymore

Is there someone who can tell me the reason? Much thanks!!!

The otg provides 500ma of 5V, but your board requires 2.0 amps for normal operations.