Hello fellow tinkers!

So I disassembled my Steam Deck to put in some ExtremeRate buttons. And after assembling it again I had no input on the volume buttons or any output/registered headphones from the jack.

So I bought a replacement audioboard and just switched it. Still no input or output. I checked the connections of the flex cable on the audioboard and it is good. The same for the connection under the heat sink on the motherboard. There is also no visible signs of kinks or tears in the cable.

So what am I missing ? Is there some hidden connection somewhere I can’t see that could have gotten loose ? I would really like to fix it myself if possible and not have it send in for repair.

Hope anyone can help !