I went on a bit of a rabbithole trying to look for firmware downloads for the G1000 to run `strings` on but sadly they're not publicly available anywhere.
No amount of quote-googling got me any further though, which was why I went firmware hunting. Now at least I have a good conversation starter for anyone who looks like they might have a dealer account next time I'm at a hangar though...
But I'm very happy to be able to say that you don't need to be sad you didn't get a photo anymore because I found https://mooneyspace.com/topic/21333-g1000-pfd-start-up-error... :D
No amount of quote-googling got me any further though, which was why I went firmware hunting. Now at least I have a good conversation starter for anyone who looks like they might have a dealer account next time I'm at a hangar though...