my wife's tomtom 510 died a slow death. she tried to add a feature, and the only map that showed up was Guam(apparently a common problem). after she spent the day with it she gave up and called and got through to tomtom tech support. they told her to wipe the chip and reload. she did. now she got nothing on the tomtom. the software is on the chip. her software is around version 6.5.

this is also a common problem. there must be a standard fix for a common problem.

anyone else have the problem and get it fixed. she now cannot get through to tech support.

Restore from the backup that TomTom suggests before doing any sort of upgrades?

I think you are probably stuffed. Maybe the best option would be to purchase the latest updated map?

Cheers,
Rick

took the wife about 20 hrs to resolve the problem.

data is written from the sd chip to the tomtom memory and stored there. the tomtom runs on the data stored in the memory. the backup is created from the sd chip to a computer. wife had done that.

apparently, when tomtom builds these machine, they load the data directly to the memory. the files on the chip were defective, so wife had a defective backup.

she finally determined the defect when she realized the files on the computer and the chip were the wrong size.

tomtom gave her the new software, and a year subscription for her troubles.

the files have grown, and barely fit on a 1 gig chip(890meg). is time to buy a new 2 gig chip.

I know an FT member with a 510. Helped her upgrade the maps. You want a 2gig card, perhaps two if you want multiple regions of the world.

Virtually every problem with Tomtom on their message boards is the result of adding features or updating their machines. They do horrible testing before releasing software, and once it's out there and causing issues (like the garbled voice in the last update0 they have to rush out another update to fix that problem and end up causing other ones.

Favorites? No sense telling people those will be history with an upgrade, until after somebody tells us. Garbled speech? If we hurry up and release a fix for it and don't say anything about it nobody will know it's our problem and not hardware related.

I like my Tomtom, but hate the way they do updates, enough that when it's time to replace it I will probably not consider Tomtom again.