I've been using Kenwood units for years, However, I got this unit, and it came installed with 2018.0 maps. I did what i'm used to doing, putting an unlocked image file on the SD card, but it didn't work this time. Searching shows that newer kenwood units block this method.
I saw in another thread, using gamin express to send the same map files to the SDcard, then replace the map img. I tried that, and when I insert the SD card it just tells me "loading map" but when I check on the unit, it still tells me it's using the 2018.0 map. I'm not sure if it's actually using the newer one and just displaying the old version number or not.
Any other suggestions?