My wife is on the road and her garmin will not acquire a satellite signal. She says when she powers it up, it briefly shows a page which says "uploading gps update 0%" then it goes to the regular menu screen but can't find satellites and, therefore, can't give her directions. I talked her through the master reset and it still hasn't been able to find satellites. but it did flash that message again. Any solutions??
Make Sure the GPS has a good, clear view of the sky. “Clear” does not need to be sunny. Overcast skies have no noticeable impact on GPS performance. But buildings and trees do. So take the GPS outside where you have the biggest sky view as you can.
Next, wait for the GPS to acquire a signal. If this is the first time you have used it, expect it to take up to 20 minutes to find a signal. Most often it will take less, but prepare for 20 minute. Now for an important step… Once it has found your location, let it continue to sit there for about 30 minutes.
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This is a common problem with units having the serial numbers beginning with "14V", "12P" and "143". It's caused by a defective SHARP touchscreen and needs to be replaced. Please see this link for more info:
Update your unit. Garmin has this problem where you try to enter a location before it acquires satellites. It is very noticeable on the Garmin Nuvi 650 also. Another thing you can try is wait for it to acquire the satellite and see if you don't get up and running. In some cases, it can take up to 4 minutes to acquire satellite information. If this is also your case, updating the firmware to 6.10 should fix that also.
To find what your firmware version you have, click on the TOOLS icon (wrench), click on SYSTEM, ABOUT (bottom of your screen). Anything less than 6.1, you'll have issues.