No could not find a part inside. The only strange thing was a loose antenna mount screw.
This HereLink seems to have another type of potentimeter. From the images within this forum I see that there are the white/metal one, out defective one is brown an smaller. Maybe the brown one is more robust in the end?
The behavior stays the same regardless whether the board is removed or not.
Since the fawn rescue season is starting in 4 weeks and last time I did send in an HereLink it came back after weeks and had scratch marks all over it, I would prefere a spare part rather than sending it in.
I have searched for sometime but cannot find this variable resistor type online. I would also change it on my own or replace it by another switch with custom resistors - I just would need some more information on the part.
As the problem on your unit is pretty clear, you may ask for a replacement board from your reseller. It is quite easy and risk free to replace the joystick controlling sub-board.
That’s strange. If it worked, that part must be intact back then.
The Herelink controller is closed with no opening. It must be somewhere inside, but I can’t really tell the exact position.
It might have degraded over time beeing loose in the beginning and getting lost after some time. It might be possible to trace that within the flight logs I guess… .