Thread: Copying maps from one device to the other

Thank you again for very helpful replies.

Its North America version. Thanks for offering to look up jcv file. At the same time, will really appreciate if you also explain how do you figure out which jcv goes with which unit? This is exact reason why I was looking for nomenclature, assuming there must be some defiined set of rules that garmin uses to dictate which device is compatible with certain (jcv)file or vice versa. I could not find such nomenclature, not even cursory ideas.

Currently, I have D3060280A.jcv (827mb) and D3191270A.jcv (485mb) but I have no idea which one goes along with 2019.30 lower states gmapsupp.img?

Any idea if things have changed with Drive**** unit variants, as in maps or jcv files?