Hello,
It seems like there is a bad connection. It doesn't happen often, but it's possible that some of the pins on the tan connectors could be bent from assembly at an angle. Are you able to inspect the pins on the connectors of the SD & Audio Shield and the TinyScreen+ and see any issues? If there are no issues, I do recommend a reassembly - don't forget to add the bracket pieces inside the TV to keep the two boards together.
If that doesn't work, you can try taking all the hardware outside of the TV to see if you can note any fitting difficulties or if it works outside of the case. It's possible the tolerance of thickness of the TV print is preventing a good connection between the two boards.
Let me know how it goes.
Cheers,
Réna
