01-07-2012 02:57 AM
Same here in North West CT (USA).. MY go 920 worked perfectly until I updated this morning around 10am (6/30/12)... The street are completely off.. Even the home location is off... Tried the reset and it did not work... I think the last update was not in sync with satellites.... They need to correct with a new update...
01-07-2012 03:53 AM
01-07-2012 05:04 AM
I'm having the same problem with my GO 630...
The unit shows my location as about 250m west of my actual location. I wanted to determine if the problem was with my map or the receiver, so I placed the unit side-by-side with my iPhone 4. I recorded the actual GPS coordinates returned from both devices:
iPhone: N 36°50'50" / W 75°59'7"
TomTom: N 36°50'51" / W 75°59'22"
The iPhone coordinates are correct; I plugged them into Google Earth and the location corresponded with my actual location. The TomTom coordinates are off, but they indicate the correct position on the installed map, so I know the map is accurate.
The conclusion is that the TomTom map is ok, but that the receiver is not calculating the position correctly.
The unit has worked flawlessly for several years. In fact, it was working perfectly up until this morning, when - WHILE I WAS DRIVING AND USING IT - it abruptly started showing my vehicle was about 250m west of my actual location.
I have tried resets, re-installs of the application, removal of GPS QuickFix, etc. Nothing works.
01-07-2012 07:06 AM
I have a same kind of issue: yesterday I just update my tomtom (regular update: quick fix....). After that when I use it, it shows a position on a wrong location. All afternoon the car symbol was on field close to the road or on a wrong road.
How can I fix that. ( I have a Tomtom 730 go). Thanks
01-07-2012 11:23 AM
updated a 530 yesterday for the first time in ages - what a mistake
Exactly the same problem - system thinks its about 200m off the road and is constantly trying to reroute
I can't believe TOMTOM can release an update that renders their own devices useless
01-07-2012 12:37 PM
Happened with my 720 this morning.
What resolved the problem for now is to do a pin reset while the unit is on. This turns the unit off but when I powered it on again, it showed me in the proper location.
A pin reset causes the unit to disregard any data downloaded from a gpsquickfix file but, rather, recreate info from the satellites themselves.
This seems (I'm not sure, of course) to point to a faulty gpsquickfile offered to devices.
So, try a pin reset on your unit and see if that helps...........
01-07-2012 12:52 PM
Same problem here in the netherlands on my GO 710. Updated software and installed a new application yesterday. I'll try the pin reset and mail to costumer services, though TomTom warns that there is no more email support available for outdated (!) gear.... Luckily our vacation does not start in two weeks.