I had my Tom Tom and it worked fine. After playing about with it and looking at all the functions, i did something and now i don't have a GPS signal. My Tom Tom won't work without it. How can i get my signal back??
I had this problem (waiting for a valid GPS signal). I did a factory reset and the unit started working
again (yes, I lost all my settings, but what good is a GPS unit that
just sits there waiting for a valid GPS signal?). To do a factory
reset, go to menu -> change preferences -> Reset factory
If you still don't have a signal after updating firmware, hard reset, reset to factory settings etc., chances are the internal GPS antenna in your TomTom has failed. If your unit has an external GPS antenna jack, for example the TomTom One series1 units, the solution is to purchase an external GPS antenna. You can find several models in specialized stores and eBay, from both noname and major brands (for example the Sony VCA-42 works with the TomTom One series1). Make sure the antenna you purchase has the right connector for your device - also, try purchasing in a regular store first, so you can return it in case it doesn't fix your problem. It fixed my 'No GPS signal' on my TomTom One series1.
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The most common problem to this is because the TomTom doesn't know it's current location. It may be that you last used your device a long distance from where you currently are now. I don't know how long you waited for the gps signal to acquire but it can take up to 10 minutes (even on military aircraft if they don't know current location).
Power it up and press on the signal strength icon. That will bring up your satellite tracking status. If it don't look like it's doing anything, then your gps has probably malfunctioned. If it looks like it's acquiring satellites, then give it a good amount of time (10-15 minutes) to see if it can find your location. I recommend doing it outside of your vehicle with no satellite obstructions to make the process go faster.
Try going online at the Tom Tom site and updating the device (it's free). There's a new update each week that tells the Tom Tom where the satellites will be during the coming seven days. Admittedly, this only speeds up the process and not finding a signal for 200 miles is a stretch, but it's worth a try if you don't regularly update.
You essentially have to reset the GPS. You can do this by holding the power button down for at least four seconds to get the Tom Tom to fully shutdown. You will know you successfully did this if you hear the tom tom sound and a warning message appears during startup. It then seems to work just fine after that.
I suddenly lost the GPS signal today and could not get it back. All I got was the "No valid GPS signal". My solution was to tap on the GPS satellite bars when in the route map. this brought up the "Status summary page of the TOMTOM.
I then again tapped the satellite bar which brought up the "GPS Status" page. I then tapped the bar labeled "configure".
The radio button next to the option titled "Minutes (dm.m') was selected. I then moved the selection to "Degrees (d.d) and it started working.
I had just downloaded the GPS fix 5 days ago so it is not like this suddenly caused it to stop working.
This may not work for everyone but this is what it took to get mine working.