XKINNOVATIONS K120-Tail Motor not working/no power

Hi,

I purchased an XK K120 Helicopter from banggood.com a few months back.

A few days ago I crashed it and had to replace the Gear, everything else seemed fine. (6G Mode)

I flew it today (6G Mode) and initially it was Flying fine however it suddenly started spinning out of control, I managed to land it safely.
After a quick inspection I realized that the Tail Motor was not working/spinning/no power.

After further inspection I decided to unplug the Tail Motor from the Board/PCB and plug it in to a Laptop USB port using a cable I have, just for a second to see if the Tail Motor is working/powers. I plugged the USB in and the Tail Motor worked/powered up.

The Tail Motor powers via USB but it doesn't power up when connected to the Board/PCB.
Main Motor and all other controls are working fine.

Do you know what the problem could be? Do you think the Board or port isn't working/is damaged. Does the Transmitter need re-configuring.....?

Photo attached. Can provide video.

Thanks

www.helifreak.com/showthread.php?t=755102

So maybe the board or tail ESC / chip / gyro is defective?
Can you test a new board?