My English is not 'very good but I try
i load the aircraft in a cold & dark situation created with the default ceesna.
Set to on the various systems, electrical and avionics, Start the IRS alignment by CDU. -
Then start the engine.
At this point, all systems are working, there are no warning, PFD and NFD show all the information of navigation and systems.
If I select the radio page on the FMS, and I click on LSK Key close to radio frequencies, (nav, com, adf), nothing happens, not show any asterisk and I cannot enter any value.
On the Up-Front Control Panel, If I select a page for the radio, for example the ILS page i can change the volume and enter a Frequency value one time , but from this point if I select another menu ', Nav, Com , Transponder ,and click on the LSK key for modify that value, nothing happens and I can no longer insert anything.
As already said before the reset button does not work and if reloading the plane repeats the same thing
The other menu of the UPFCP work regularly , so i can set the bingo value, the altitude warning and so