I have the old navi 3.3 disk in my 04 TL. I just purchases the new 3.8 update. Can I, when I sell the car, reinstall the old 3.3 disk? I though I remembered seeing a post a while back that people couldn't, but I thought there was a fix. Any input would be helpful.

Thanks,

Scott

 

I don't think you can Schapko. I did this with my 2007 Type S. I bought a bootleg updated copy and took it over to my dealership before I put it in. It worked perfect, but I think I remember the Service Writer saying you cannot go backwards with discs.

 

insert the old disk and then:

Go back to the driver seat, the display will show some dvd read error, now press and hold "GUIDE" "MENU" and "CANCEL" for approx 5 seconds to bring up the diagnostic menu.
Wait another 5 seconds to let it load up completely. Press "version" button on the screen
Press "LOAD DISC" to load your custom bin into the navigation.
Wait until it's completely done and it will then display another error message about can't read the navi dvd, now take out your bin CD and insert your Navigation disc and you are done!

 

Thanks Mod, I am adding this to my links, so don't delete it, you're info is priceless when people try looking this up and, Voila!, you have the answer......most posts are "try this, try that..."

 

Thanks, I appreciate your help!