My unit is just over a year old. In the past few weeks I keep losing satellite reception. I am driving in the same locations I have always been. It is very frustrating because I can't trust it to get me through the city. I live outside of Chicago. This happens often and it usually doesn't come back right away. It even happens 2-3 miles out of my house. is there a way to reset the unit?
There is a problem with your GPS satellite receiver, The best thing to do is to connect an external antenna/satellite receiver which you can buy aftermarket, about $29.00. This is proven to give you back your GPS to life. You'll see your green bars again I have Garmin Nuvi 370 and this fixed the problem.
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Re: /lost satellite reception
The reset button is at the back of the model under the flip-up antenna. Pressing this will reset the unit while preserving any of your user data.
A hard reset (loss of user data) can be done by holding the right bottom corner of the screen on boot-up.
You can also access the engineering menu to reset and test various parts of your device by pressing "View Map" and then pressing and holding the lower left corner of the screen for 5 seconds. On the Nuvi 680, you would need to press this corner once, then enter the Navigation page and press and hold the middle of the speedometer (0.0mph) for five seconds.
Before you try any resets, I would recommend downloading garmin's WebUpdater from their website and checking to see if there are any firmware updates for your device. Install those before any resetting.
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If you shut the unit down - and remove it from the power cord in your car, this is expected.
When powered down, the unit is not capable of maintaining contact with the satellites in the sky. When you power it up, it needs to receive signals from 3 or more satellites get a "fix" or calculate your position in the world. The more signals received, the the more accurately displayed your position will be. The device must use the signal data, perform calculations and bring up a map of your area.
The "Lost Satellite Reception" message also occurs whenever the GPS does not have a clear view of the sky over the earth's equator. This can be from a garage roof to heavy foliage (tree cover) - and even when driving between tall buildings. Usually, it shouldn't take more than a minute or so (once the obstructions have been cleared) for the GPS to reacquire the signals, calculate and display your new position.
I have a 3 year old Sportster 2 replay unit that worked perfect until 1 month ago. I posted my problem on this website a day before you did with this same problem. I googled to no end and even spoke to Sirius who wasn't willing to replace my unit at no charge since it was out of warranty. I found an unusual solution on the internet that worked for me. I place my receiver in the freezer for at least 20 minutes (this was recommended by a guy somewhere on the internet with the same problem). I have actually left it in freezer overnight too. This has solved my problem. It is the craziest thing but I thought I would try it before I resorted to replacing all my accessories and receiver since Sirius was less than cooperative with the issue. Anyway, hope this helps.
Signal Fade And Loss ~ Important, especially during winter!
Keep in mind that satellite broadcasts occur directly from fixed satellites in space to users. UPLINKS TO that satellite can happen from almost anywhere in the world! This includes broadcasts from remote studios, satellite vans and trucks.
Even signals from the main providing studios are susceptible to weather conditons even tho they have huge, high-gain transmitting dishes!
Weather is a major factor for both the uplinks and downlinks! Storm clouds can block the signals anywhere in the signal path(s). Rain clouds do too ~ even if it's not raining yet. Water-laden clouds make some of the BEST signal attenuators.
So one may have a gorgeous day in San Diego (let's say), but storms back east could trash satellite reception at his location and potentially everywhere else!
As you know, weather conditions all over the US are changing constantly with many severe storms occurring this past week and during any winter. In fact this week there was total signal loss on several satellites and I suspect storms back east were a big factor.
So it could have just been issues of timing for you. The UPLINK had intermittent problems with signal paths semi-crippled by weather... YOUR weather was CLEAR, but your reception was far from problem free ~ only because of weather problems elsewhere.
If you see intermittent satellite reception do check out the weather... especially back east.
You need to have Garmin Tech support send you this attachment; "gmapprom.unl" Then follow the instructions below.
Save the attachment from our message to the desktop
Right-click the file gmapprom.unl, and click copy
Click on My computer
Click on the Garmin Nuvi drive
Click on the Garmin Folder
Rightclick a blank white space in this Garmin folder
Click Paste, and note gmapprom.unl file is listed, please also delete
gmapsupp.img if present
Unplug the device, and allow to start up
I have the same problem, and so far the only solution is patience. If you are in a cutting, or between tall buildings, and the satellites are low down on the horizon, then it seems reasonable that reception will be between poor and zero. But in wide open spaces mine too sometimes loses the signal. Hang in there, and contact is restored.