Controller won't turn on, no blinking light, battery and USB port OK

Hi everyone,

I recently opened my DS4 to clean it, and specially the right joystick cause it as acting funny. While I had it opened, I decided to clean the board with a toothbrush and IPA.

Closed it up, only to find out it wasn’t working anymore… Re opened it, opened a second one to test different parts, and end up knowing that charging port et battery are good. So it might be the MB, could it be not getting power from either the cable or the battery ?

Anyone encountered this ?

Thanks !