Kinect v2 for Xbox will not power up (no J11)

Hi.

I've tried doing a lot of research but got nowhere.

I own a Microsoft Kinect for Xbox (slightly different from the Xbox for Windows version).

It's not the first release, since I could confirm it does not have the J11 fuse.

Picture here: https://imgur.com/GHw2SGw

I does not work while connected to an Xbox One or an Xbox One S (through the adapter).

I believe that the adapter is working fine (it's brand new) and power seems to enter the kinect (based on some basic measures, I'm not really an expert).

Not sure what to do. Perhaps someone can point me in the direction of replacing some obvious components, or maybe replace the main board, if they are being sold somewhere.

Any help is appreciated.