Power up issues

I try to boot up a BPi M2 Plus v1.2 using an OTG cable (i have a 5V, 3A official RPi power supply). However, it doesn’t show anything via TV through HDMI. I’ve tried also 3 different SD cards, with Bananian, Raspbian, Armbian and Ubuntu, but none of them made the trick, only the red LED is on. Does anybody know how can I boot up the board?

Throw that to the garbage and power the board via power connector.


Thank you! Do you know by any chance which power connector should I use? Is it any good a barrel jack instead of the micro USB from RPi?