Jdm 011 no signs of life

[Tracas]

Hello
I have a DualShock 4 JDM-011 board that shows no signs of life.

I already replaced the micro-USB charging port, but the issue remains.

The battery is fine (taken from another working JDM-011 controller).

I also tried the bridge/jumper mod shown in this video, but it still doesn?t power on:
https://www.youtube.com/watch?v=EWsZH-tJODw&t=1s

Thanks in advance.