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Reset your TomTom GPS receiver. Some TomTom users report occasional difficulty in getting their TomTom navigation device to start or respond to commands. If this happens to you, remedy the problem by performing a soft reset on your TomTom GPS. A soft reset will reset the data on your TomTom GPS receiver without erasing any data. To reset a TomTom GPS receiver, press and hold the "On/Off" button for 15 seconds or until the device restarts. 2
Let your TomTom GPS acquire the necessary satellite signals outside. If the device has trouble connecting to the satellite signals necessary for its operation, try an easy fix to the problem. Take your TomTom GPS receiver outside, away from mountains, tall buildings or heavy foliage, where the receiver has a clear view of the sky. Wait for a few moments while the device acquires the necessary satellite signals.
Read more: How to Troubleshoot a Tom Tom GPS ' eHow.com http://www.ehow.com/how_5533906_troubleshoot-tom-tom-gps.html#ixzz1hV4FBQ91
Usually, when it's waiting to get a valid GPS signal, it is "listening" (scanning) for satellite signals to establish your current location. If you are in the open outdoors, i.e. not inside a building or under extended covers, it should get the satellite signals within a minute or so.
That just means that your not in good range of the satellite that the TomTom uses. Think of it like cell phone reception. Try waiting a few minutes or going to a different area. I have the same problem because I live in a forested area, but when I leave and go into town, I'll get a signal.
This is a common issue with TomTom software in general! To alleviate this issue, Tomtom has released QuickGPS add-on to locate satellites faster. If you have not got it loaded to your device, download the appropriate version of QuickGPS from the TomTom site and make sure you use TomTom Home (connected to the Web and your device) to update both your MAP and QuickGPS on a regular basis.
Hope it helps: let me know how you go and good luck!
1) Make sure the TomTom can "see" the sky well... the GPS satellite waves are rather weak and easily blocked by trees, and anything not a window.
2) Hook up your TomTom to the computer (see details at www.tomtom.com or in the manual)
2b) Do a "sync" and download all updates. One of the updates is a small file that tells the TomTom where the satellites are located this week, and helps it sync up much faster. The longer time between uses, the longer it takes TomTom to find the satellites, and that can takes up to 2-5 minutes sometimes.
That can be frustrating with a car full of people waiting to get going and the driver doesn't want to drive without making sure the TomTom works and is giving valid directions.
check the port is set to 8 not sure if your model has GPS search wher it finds the port and vbaude automativcally, if it does use it and see if that fixes it if not your battery is too low you have a damaged SIIRF chip and that is expensive to repair
Tom Tom needs comms with GPS satellites orbiting the earth.
Make sure you are outside your home so the GPS can find these signals. Initially it may take up to 5 minutes to make these connections. One the satnav knows where it is, all subsequent connections will be a lot quicker. :)
Some vehicles have windscreens with special coatings which prevent the satnav initialising with GPS satellites. If this is your problem, the only solution is to purchase an external antennae for your satnav. :(
Make sure you are outdoors. Some buildings are well shielded due to their construction.
If you are not downloading the GPS Quickfix every week then it will take much longer for the unit to acquire satellites. Perhaps as much as five minutes.
If you are outside set in a destination and if you have not got satellites within a few minutes then drive a a few tens of yards and it should suddenly find satellites. Happens to my unit as well. HTH Peter