Step 1. Unzip your download to a folder in your documents on your computer. You may need an unzipping program like winzip or WinRar to do this. Extract them to the folder you chose on your PC.

Step 2. Copy the new ( UNZIPPED ) folders to your Micro SD card.

( I use sandisk and Samsung 32gb in the HDS)

The MICRO SD card now gets put into your Lowrance Chart Ploter.

These maps wont work in Hummingbird or Garmin.

Step 3. Depending on what map you have, utilise your built in maps ( Navionics or C-Map) and zoom in to that location.

You find your maps in > More options > Chart Source ( on the HDS model). If you purchase several maps you may see the names like Lowrance & maybe named & dated low tide maps. If you see "Lowrance" click on that or another named "low tide" map.

Step 4. By now you are back to a white screen & feeling ripped off.

That's OK I'm probably off to Tahiti.

Look in your settings , maybe just above your Charts and look for > Chart Options > Shaded Relief . Give it a tick/ tap ( maybe an orange triangle in the corner appears & so does your new imagery. (Get used to doing this for other maps) Check tutorials below.

Step 5. If you are struggling and still only get the white screen, zoom in closer starting at Step 3 again. The maps do have other higher zoomed out layers like "Top End" and even higher "Australia Overlay" that you may find beneficial to have. They are not necessary if you know your way around but will make things easier.

Step 6. Any new additional maps will have to go through this procedure to add the shaded relief notation to them. Get familiar with those chart options button locations & you will wizz through it. Named "Low tide" maps will usually appear as a specific map in your charts. The rest will disappear into the system under the title "Lowrance". ie say you got Adelaide River, Roper River , Victoria River , Shady Camp maps & the "King Ash Bay Low Tide" maps. You would only see in your Chart Plotter maps the headings, C-Map, Navionics , " Lowrance" & " King Ash Bay Low Tide" and that is normal.

INFO : Sometimes a good old turn it off and on again solves everything. There have been cases where I have not zoomed in far enough for a new map and ended up unticking the "shaded relief" option & had to re-tick it to see the imagery. So it will happen, it may get muddled but you will get there. But once you are up & running and your zoom maps are visible you don't need to go to Shaded relief. You just flip between the maps in either the area you are fishing at or by searching for an area manually on your chart plotter. Like doing a search on the internet

Say you are coming back in from the Islands at King Ash Bay watching your map, you have 4kms to go to the mangroves , tide is roaring out, the water muddy , the wind is blowing and you are starting to hit shallow spots following your tracks and troll lines you took during the high tide. You simply go to your map options locate the "Low Tide" map for King Ash Bay (if purchased) and see where the last known low tide sandbars and channels are and use it to guide yourself in to safer waters.