Can anyone point me to the instructions on how to update the FMS in the A340? Does it just use the built-in msfs2024 database or does it have its own? Can’t find any info on this. Thanks
Not , 
………
might want to edit your post it obviously isn’t correct
Well…. More concrete you can’t install update for this so far as I know… do you have navigraph hub ?
You update it through the aircraft EFB.
figured it out. you can either do it fhrough the EFB or (in my case) if you update the base airac database in the sim it will use that.