Need navionics mmc card for humminbird matrix 67

you download the updates off line then down load them to your unit off the sd card

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

intermittents are a real pita.
off hand I would guess a hardware memory problem.

You can use the Navionics and also LakeMaster Cards.

Hi!
Go into the menu (press menu twice) and look for the alarms tab. There is a setting you can change for a low battery warning, make sure it is set to off or as low as you can get it. Also it may be time for a software upgrade (available at a service center)
Best of luck!
Mike

Hummingbird will refurbish that one for around 150US dollars, better then 500+ for a new one. If the screen is subjected to direct sunlight and heats up it can go out. This is why they discontinued the 67 model and replaced it with the 767.

try holding down view then press the on button.

Hi!
You NEED to have a gps lock in order for the card to show it's true potential.
Also check in the menu for a setting that says "Map detail" and change it to all available. It could be the setting is on a lesser choice (like the internal mapping and not the new sd card)
Hope this helps!
Mike

Make sure that you go into MAP data and select this chart as the map info. You might just be using the internal base map right now.

Mitch