SOURCE: MY TOMTOM ONE IS WAITING FOR A VALID GPS SIGNAL I
Turn on your tt and let it bootup. After it has booted up go to the map screen. On the bottom right where the bars are for satellite reception. Tap the bars this will take you to the screen telling you the device code etc. On the upper far right where the battery icon is tap the screen again. This will take you to a screen showing the satellites. If you see grey bars on the graph just wait awhile. Sometimes when your tt has not been turned on for awhile or you have turned it on after traveling a few miles it may take up to 30 minutes to get a lock.
Hope this helps
SOURCE: waiting for valid gps signal
Go to TomTom Home on your computer and do a update for your unit. In the update list you should see a GPS quick fix which helps the TomTom's aquire a signal faster. Hope this helps.
SOURCE: My tomtom one 130 will not pick up a valid GPS
Install Tomtom Home on your pc and connect your gps on it.Do not update the firmware yet, but ony the "gpsfix" program. If it does not work, try a reset by holding the power button for 15 seconds.Let´´s get in touch
SOURCE: my tomtom go 300 keeps reading
i've had the same problem,to fix it you need to update it,i connect it to the computer and go to tom tom home there you can get free updates,i do mine every month,this will fix your problem.
SOURCE: MY TOMTOM ONE WILL NOT PICK UP A VALID GPS SIGNAL
The
Tomtom devices need to locate GPS satellites in the sky in order to
work. Unlike TV satellites, these do not have fixed positions but move
relatively to the ground. The Tomtom can locate them by scanning the
hemisphere, but this takes up to ten minutes after you switch on the
device.
To speed up the process, the Tomtom receivers can use a
helper file stored on the device. It holds precomputed positional data
for the GPS satellites that makes finding them a matter of a few
seconds.
However, the file holds precomputed data for some two
weeks in advance only. After this period, the Tomtom device has to
resort to the slow scanning procedure.
You will need to connect your Tomtom device to a PC with the "Tomtom HOME" software installed, available from the Tomtom company web site.
Use the software by following the onscreen instructions to update the
package "QuickGPSFix" at least once every two weeks and you will find
your device much more swift in establishing GPS connection.
Note also, all GPS devices require clear view of the sky. They do not work inside buildings, in tunnels, through the roof of the car, and even trees or buildings near to the car may compromise GPS reception. Make sure the device is mounted in an area of the windshield where it can "see" the satellites.
Some cars have metallic a coating on the windows (used for sunlight filtering and "can look outside - can't look inside" fancies). There are reports that these coatings also interfere with GPS receivers' ability to receive the satellite signals.
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