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Metal blocks signals. If you are putting the TomTom on the dash, and there’s still a weak signal, then there’s metals (or some impurities) in the windshield interfering with the signal.
Try having it held near the rolled down window on the passenger side.
If this helps, then you might want to find out if your model has available an external antenna!
The GPS signal shown on tomtom HOME is a demo and in no way represents the actual funtionalitiy of your GPS unit. The GPS receiver if still not working after you did 'the obvious' needsto be replaced. Workshop repair required
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.
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