Help on map updates on my Garmin

austjjaustjj Posts: 87 Greenhorn
Support is closed until Tues and I want to work on maps install today. My question when I go to updates, it list 2. U.S., Canada, Bahamas Combo Detail Map redeem by 12-22-18. The other listing is US Lake Vu Combo update 1-12-19.

I bought a 73DV in Nov 2017 with Lake Vu. I don't want to update until May

And I bought the 840XS with Lake Vu and Bluecharts G2 in Dec 2017, would update this unit with both maps

Is one of the maps an update for 73 and the other for my 840XS. Not sure what to do
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