Question about Garmin GPSMAP 498
It works perfect for two hours or three hours and then it cannot locate the satellites. Power is always on. Screen is on. Looks good.
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Posted on Jan 02, 2017
These are the instructions I got from Garmin as how to do the Master reset:
Here are the steps to backing up the favorites on your unit and then performing the master reset. First, you’ll want to plug your unit into your computer via USB cable. Once it’s plugged in, you’ll want to go to My Computer in your start menu or from your desktop and double-click on the Nuvi. At this point, you should see a few folders, but you’ll want to double-click on the Garmin folder. Here, you’ll want to look for the “GPX” folder and you’ll double-click on that. In this folder, you’ll want to drag and drop the file titled “Current.gpx” to your desktop to copy it. Now you are able to do the master reset.
To do that, you’ll want to start with the unit turned off and press and hold on the upper left hand corner of the touch screen. While holding the touch screen, power the unit on and continue to hold. You should get a message that asks if you really want to go into maintenance mode and you’ll want to select “Yes”. At this point, you’ll want to select “clear user data” and then select “Yes” when it asks you if you really want to clear user data. Now, the unit should restart and you’ll want to take it where it has a clear view of the sky and let it sit for up to 30 minutes to acquire satellites. If after 30 minutes it does not acquire satellites, you can go ahead and reply back to me.
Either way, once we have your unit back working again, you can follow the first set of steps again to get to the GPX folder and drag the “Current.gpx” folder from your desktop to that folder on your unit. This will replace your favorites.
Posted on Oct 07, 2008
I should have posted this sooner. I got hold of Garmin about my problem with the nuvi 360. They were very nice about it and had me send the unit to them and they sent me a new one. It was that simple. I never found out what the problem was but the explanation from the other guy makes sense...... that the internal battery wore out and had to be replaced. I am very happy with Garmin products and am glad everything worked out.
Posted on Oct 27, 2008
I tried to install Garmin GPS Chipset Type G (part of Garmin Webupdater) but it gave me an error:
"This Garmin device is unable to program the requested memory region. This could be due to an incompatibility between this application and the Garmin device"...
Posted on Jan 20, 2010
You need to check to see if the depth sounder transducer is connected or functioning. It might be turned off, the connectors may be bad or the transducer is bad. I don't have the 498 manual in front of me but I think there is a test function under the setup menu. I'd check my connections (the usual suspect) then run that.
Garmin tech support is pretty good/quick. So don;t be afraid to give them a call.
Posted on Aug 29, 2010
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