Had 2 lockups on touchscreen. Today screen worked OK then when controller asks me change to before landing the VFR via the touch assist button, no dials, the screen locked on to the IFR transponder code and would not revert to VFR.
Happen a week or so ago but worse could not get anything to come up except VFR code and gibberish. Later same flight it started some familiar routines.
Airplane has not been not hit by lighting or power surge that I know of but did have a routine annual before this started.
I don't think they even turn on the avionics bus. Oil prop new tires and inspections.
Have any other users had this kind of issue?
I have asked L3 technical and the installer to call me.