Stopped the dealer a few weeks ago and he did the system software update to rel_ A2.20.07.20I must be behind the curve a bit.
DON'T DO THE SYSTEM UPDATE IT WILL BRICK YOUR HEADUNIT!
Yes, the map update (downloaded to USB) was totally separate from the software update (downloaded via Wifi). I have an appointment with the dealer on Wednesday. I will let you know what they say. It is definitely totally dark.The map component in the update recently discussed here, A18.104.22.168, (I believe the one that failed to update for you), does NOT contain any new maps. See several posts above for a nice list of what WAS updated.
I could try to update the software via USB, but the head unit is completely dark or dead. Absolutely, no response from the head unit, but thank you for the suggestion.Sparkland, you can’t download the latest update to your USB key again and plug that into your head unit to try the update again?