Help Garmin Aera 500 Help

Good day hope you are well I've been through many threads on the site and I'm just not sure what to do

I Have a Garmin Aera 500 that I use for flying in southern Africa my database is from 2013 and I wanted to find out how I can update them and which tutorials would work for my device and a Macbook running MacOS Montery I've attached some pics of what my GPS shows.
I'm not sure if they can even be upgraded or what they mean




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Any help would be greatly appreciated