Difficulty in finding satellite on my Europe 1 tom tom purchased about2 years ago. Sometimes no response for upto 20 minutes

depends on the service schedule programmed in at purchase date when new.you had a choice of two....extended(high mileage) or normal. i.e. extended could be upto 40k for a service (just highway)although rarely that long in everyday motoring.normal is 20/annually again the service indicator on the dash will light up (oel...in 10...in 20)telling you which is due.OR you can service it every year upto 18k and the car will last longer.....(my opinion)VW use full(5/30 synthetic when new BUT supply all the dealers in europe with 10/40 semi for aftermarket servicing......for normal service intervals and 10/40 full synthetic for extended.there is NO WAY (other than reading diagnostic computer)of telling which service interval was put in by the dealer network......but the dashboard will tell you...

This is a common problem. Please read more about it here:


http://www.sharc.net/gps_antenna_repair.htm

- Jim

You can activate products by connecting the unit to a USB port of a computer. If The Tomtom Home application is installed on computer it will launch and update the unit. On page 1 of main Home menus there is an icon for activation.

To make things easy for you I am enclosing a screen capture from the HOME 2.7 application.

The TomTom 520 and 720 are the same unit. the differance is the maps. The 520 has maps of the US and the 720 has maps of Europe. Download the free clearflash utility from TomTom and run it a couple of times. This should clear up your problem. Sometimes the mapset config in the map gets full and it has to be cleared.

4 satellites minimum to achieve triangulation. delays are not unusual in some areas but mainly due to a low battery level try and rtecharge the battery or replace it

replace fluid and filter.if it dont help . low fluid level could have burn out your forward clutch plates.

I had the same problem after downloading the latest maps, the unit was slow to boot up and would not find any satelites. I had no response from e-mails to Tom tom tech support and I was going to give up and buy a new device if this fix failed. I had tried paper clip resets and resetting to factory settings but they had not worked.

After reading the previous answer to this link I searched Tom tom support for 'clear flash' and the search results were more useful than the FAQ on the normal support pages.

I used Tom tom home to uninstall the current software application and then reinstalled the latest version (I had to go through several updates as my version of the software was from when I purchased the unit in 2007), I then downloaded and ran Clear flash and made sure that I disconnected the tom tom from my PC using the correct procedure (using the eject button in the bottom of the tom tom home screen as I read that this could have contributed to the problem in the first place).

After another reset the device came to life and after a few minutes searching for satelites outside the device worked as it should (try checking the configure GPS option if it is taking a while to find a signal, it could be just me but it seems to speed up the search process).

Hope this helps.

I have a Tom Tom One and sometimes it behaves as if there are no satellites no matter how long it is switched on for but I now just drive off and within a few seconds (30 seconds at most) is it suddenly acquires the satellites and it's OK. It just seems to be a quirk of the device and it doesn't do it all the time.

If it still does not acquire satellites on the move then it is probably faulty and needs to be repaired.
HTH
Peter

While under warranty.... yes.... Make sure it's been registered on their site before calling them and requesting an RMA number.

Good luck!

- Jim

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.

Cheers