By default looks for gps signal, not able do do 'where am I' function. Jailbroken iPhone on 3.0
SOURCE: navigon 5100 gps
Try turning it off and turning it back on while it is still plugged in and see if that works.
SOURCE: My tomtom not finding any gps signal
did you save a backup of your original settings/software via tom tom home?
SOURCE: Tomtom not finding gps satellites
i had exactly the same problem, i dont really know how i solved it but first i thought it could be a memory problem slowing the gps signel so i reset the tom tom to factory settings then downloaded the updates from the tom tom home program of corce i lost all my destinations but i didnt want to do a back up just incase one of the updates had a virus or something so if u want to keep them i sugest u write them down first.and then i got a safty pin and pressed the reset button underneath where the memory card goes twice the second time i held it down for about 10 seconds then i looked for updates again from tom tom home. after that in tom tom home there is an option where u can operate your tom tom on your pc so i tryed that and i put in a destination on the pc and clicked on demo tour so i watched the route first it was a bit slow but started to speed up a little. after it had finished i un plugged the sat nav and went for a walk with it around the house soon as i went out side and set a destination it found 6 gps signels,make sure yhe battery is charged to at least half. well i hope anyone who follows my steps gets the same results, thought i lost 200 quid cos i have had it over two years and its only guarenteed for 12 months. well good luck.
SOURCE: navigon iphone 3g no signal
I am using Navigon on the iphone cant get a GPS signal please can you adv
SOURCE: igo sat nav cant get gps signal
The mosdt common reason for non connection is low battery power. The battery lasts approx 2 years and may not be charging correctly. Try changing to a new battery.
Second reason is that it is not on the right port, consult manual for your model and set it to its correct port and BAUD rate.
Finally if you have started the enginbe with it connected to the 12v car outlet you may have damaged the chip.
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