Question about GPS Devices
There are a few things you can try to restore satellite reception.
1. place your finger over the lower left-hand corner of the screen and hold it there
while pressing the on/off power button. Keep holding your finger there and a window
should pop up asking if you want to go into maintenance mode. Select yes. There is an
option called "clear user data". Select that option. It will not erase your favorites.
It will however, erase any corrupted satellite data and will default you back to some
factory settings. This will clear some of the memory allowing your Nuvi to collect new
satellite data. Your Nuvi should reboot and it will ask you a couple questions like,
timezone, language. Please select the proper settings.
Make sure the antenna is up and that you are outside. On the main screen, you will see a
satellite bar graph in the upper left-hand corner. Touch the bar graph and you should
get a satellite map, showing the satellites. If your Nuvi's receiver is working ok, you
should see horizontal hollow bar graphs appear on the right. Eventually they will turn
solid blue. This indicates they have downloaded the proper data from the satellite. When
you have (4) solid blue horizontal bars (4 satellites), you will see the top panel begin
to show improved accuracy and your Nuvi will then work as it should. This entire process
make take 30 minutes or less.
If you don't see any bar graphs, your Nuvi may ask you several minutes later, if you are
indoors. If your outside, select no. It will then ask you if you have moved 1000 miles
since your last use. Select yes. This will cause your Nuvi to start looking for
satellites, trying to locate your new position. When you perform a factory reboot, your Nuvi thinks it's in Kansas (Garmin HQ) and so it needs to be told to look for new satellites.
Now, if you still don't see any bar graphs, then your antenna may have a problem. There
is a known issue with the Nuvi antenna where a part has failed, causing the Nuvi to no
longer use its internal antenna and it's now always looking for an antenna at the
external antenna port (the gold connector on the side of the Nuvi antenna). If you have a
piece of small wire, a couple feet long, you can insert that into the center lead of the
external antenna jack. Most likely, you'll begin to see bar graphs after a few minutes
and your Nuvi will lock.
I haven't been able to identify yet, which part has failed. I am working on that.
However, if the piece of wire works, you can always go on eBay or a retail store and
purchase an external antenna for your Nuvi. They are magnetic and can either stick to
your roof or any metal surface within your vehicle.
Here's another way to determine if your antenna has failed and will have to be replaced:
At the main menu, pres on the "wrench" symbol. Then press the "gear" symbol and then
press "about". There is a field marked "GPS S/W". There should be a number next to it.
It may be "2.9" or "3.0". That is good. That tells you that the main board in the GPS
is communcating with the antenna receiver. If you see "0.0" then your antenna is
defective and there's no way to repair it other than replace it.
Please let me know if I can be of further assistance to you.
Posted on Oct 10, 2008
Try this and see if it fixes your problem...first disable bluetooth then follow these steps....
1. Power off the unit.
2. HOLD down the power button and you will see "Pre Boot Mode" appear on the lower part of the display. KEEP HOLDING the power button down and the display will flicker, do this until the pre boot mode message disappears. This seems to take a long time (60 seconds at least).
3. Once the pre boot mode message disappears release the power button and your device will perform some activites to recover from the problem.
Posted on Jan 02, 2009
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