Mercury SRS SBUS V8 Flight mode switch assignment

  • Hi with a new mercury SRS after general settings

    I try to learn the flight mode switch on my FX36. Using a 3 position switch I can see on the screen by moving the switch the 3 different positions FM1/FM2/FM3 and the I say ok the answer is "invalid chanel assignment undefined". And with most of the over switch it doesn't work at all...?

    I made the last update V8 and did a factory reset but same...