Hardware Dead pro controller

[Avinitlarge]

Ive got a Pro controller that’s not turning on, connects to a PC via usb but no response from buttons etc, if I press the sync button, it disconnects from USB. No charge light when plugged in but there is voltage on the board from the charger. Stripped it down and there is nothing obvious.
Any common issues?

 

[Shadow#1]

Ive got a Pro controller that’s not turning on, connects to a PC via usb but no response from buttons etc, if I press the sync button, it disconnects from USB. No charge light when plugged in but there is voltage on the board from the charger. Stripped it down and there is nothing obvious.
Any common issues?

Official or Chinese clone?

 

[Avinitlarge]

It’s an Official one