I bought a working Lynx 2 quite cheap.
After a while, I recognised that button B is stuck (not physically, but electronically).
Since I wanted to mod a Lynx 2 with McWill's screen, I chose this one, because I had to open it anyway.
I cleaned the flexcircuit and the rubber pads of the buttons with alcohol and installed the new screen.
Everything worked fine after reassembly for 2 months.
Now, the right key on the steering cross is stuck (electronically) ....
Any suggestions whats wrong?