Lowrance LCX 28c HD with Navionics HotMaps Premium SD chip. Chip worked fine last fall but when I went to use yesterday the Lowrance would not read the chip.

Hi James

After looking through the user's manual, (see link below) as this unit doesn't have chartplotter capability I think there is no slot for your SD card.

Sorry I couldn't have given you more joy.
-Steve


http://www.lowrance.com/Root/Lowrance-Documents/US/MARK-ELITE_SONAR-ONLY_OM_EN_988-10157-001_w.pdf

With your card in your unit follow these steps it should accomplish letting you view your map data.
push MENU twice
Highlight CHART push ENTER
Highlight CHART DATA push ENTER
Highlight LOWRANCE push ENTER.
You will note there is an option for Lowrance and Navionics, if you select Navionics you will see a distinct difference in the way the base map displays on your unit.
Hope this helps.

The manual is here... http://www.lowrance.com/en-US/Products/Fishfinder-Chartplotter/LCX-28C-HD.aspx and you can contact Support here... http://www.lowrance.com/en-US/Contact-Us/

Did you get the card for a Humminbird .... OR... a Lowrance??
https://www.humminbird.com/WorkArea/DownloadAsset.aspx?id=2977

It might be possible that you WILL NOT BE ABLE TO OPERATE such maps on your device.
A list of compatible plotters can be found here [in PDF format]:
http://www.fugawi.com/web/products/plotterfacts.pdf

Hey Tingo,
I have two 113's,, the problem sounds like the transducer is going bad,, Try this.. unplug all your connections,, replug them and see if it helps...

Don't get me started on $$$ updates....

Does the image come back by itself if you slow down or stop and wait? If not, make sure you are not leaving the coverage area of the chart you are set to. In the LCX-20, that Navionics chart is split up into several sections, if you have one section selected and are on the border and then leave that area, the map usually goes all white depending on your zoom level. If you are on a border like that you will have to learn to quickly switch the charts from the MAP DATA menu.

If the map does catch up when you slow or stop, and just can't redraw fast enough...

Make sure the LCX-20 has the latest updates which can be downloaded from http://www.lowrance.com/en/Downloads/Product-Software-Updates/
These updates often add additional Navionics support.

Most likely though, this is just going to be the way it is with that particular map and the LCX-20. If you zoom out it will be much much better. So if updating doesn't help, zoom out. Experiment to see how close you can be zoomed in while running above 20mph. If you can get a good zoom level to where the map can keep up and you can still see the information you need then you should be good to go. If not, use the LakeMaster card or go get a different mapping option...or upgrade your display unit.

You need to wait for a fix from Lowrance on the HDS units. Supposedly, a new software update is planned for May 15th 2009 to address this.

I've had several similar units, and used them with Navionics HotMaps Premium series chips. You must select Menu. The "Browse files" to access the MMC card option. Once the selection screen opens, choose which card or file you want.

FYI...All of Lowrances HD models come preloaded with pretty much every major lake and river in the US.

Lemme know if this helps...
Triton72

I went to a reliable source & did not have to pay !!!!