After doing a bit more research on this, I've updated the link in post #1, above, to include information about the MMI 3G High release that is included in the NAR nav data media.

I'd like to add a PNG screenshot ([TEL]+[MEDIA]) of the Red Engineering Menu main screen for MMI 3G High systems showing the latest "Current train version" as "HNav_US_K0133_3_D1" to the document -- Google hasn't found one for me, yet.

Can someone out there do this & send along the PNG file ? Write-enabled SD card in slot #1, start Red Engineering Menu with [CAR]+[BACK]+hold, screenshot with [TEL]+[MEDIA]+hold, exit Red Engineering Menu with [CAR]+[BACK]+hold. --g