Really??? How can you tell how many pois are there? I'm just thinking...without Mexico, it would have room to put everything on US and Canada. So I guess that's not true.

Since I made a backup, I can restore the map back to US/CAN/MEX. But then...I'm not sure if TT will ever fix this map size problem without compromise anything.

Well...I may have to do that anyway. As I said earlier, I've switched to North Ameria map. Took a long time to download and a long time to install. But it finally finished without problem. The problem is...when I restart my device again, it now say "No Maps Found". What is interesting is that I can operate my device using TT Home withou any problem. Just won't work by itself. Anybody has any idea?

 

Try a reset on the unit.

__________________
TomTom 720--NA Map 855--WCE Map 840--NZ Map 835--App 8.351

 

The highest American POI set is only on the North America (not the 2GB) map available for the 700/910/920/930/940, and in the USA/Canada/Mexico map available on the 140/340.

The easiest way for me to tell whether a map has high-end vs mid-range POIs is to search for Borders Bookstore. Hi-end has them, mid range doesn't.

North America fits easily on a 140/340 since HOME will strip the unneeded speech recognition files, HOME just won't install it.

__________________
Current Tomtoms:

GO 740 app 9.054 (weekdays)
Map North America 2GB 855 + full POI + map subscription
+ LIVE services

GO 930 app 8.302 (weekends)
Map North America 855 + map subscription
Map WCE_2GB 825
+ PLUS traffic + Fuel prices + free safety cameras

HOME 2.7.4.1962 - WinXPproSP3

Prior Tomtoms:
Go 720, Go 510, One Limited Edition, One 2nd edition (all sold)

 

I have had a similar experience to jackspm. Tech support gave me a replacement to download. Took over 4 hours. Now that it's done, device says "no maps found", though TomTom Home finds the map fine.

Tried a reset - didn't make any difference.

Any other ideas?

Thanks.

 

BTW, tried to do the Explorer backup/copy. Got a "Cannot read from file or disk" error, though I can navigate around the device fine. Many files in the root folder have non-standard characters for the names, i.e. not alphabetic characters. Is that normal?

 

Sounds as if data got corrupted. See if you can use Explorer to backup those Folders and files that are not corrupted.

__________________
TomTom 720--NA Map 855--WCE Map 840--NZ Map 835--App 8.351

 

sounds like I'm not alone. I too got files with non-standard character filename. I can not remove these files. So now I reformatted my 104s and run TT Home and is re-downloading all the files including the North America map. Hopefully this works. If not, I'll then use my backup.

 

I'm working this from 3 angles: the forum, TT email support, TT telephone support.

In an email, they told me that I had to backtrack to 830 map. Said they made it available to my account. First, they forgot to tell me to delete the 835 map. Until that is done, 830 won't even show up as an update option. I figured that one out. After downloading/installing 830, I still get the "No maps found" message when the 140 is operating stand alone. No cigar.

Will add a post if I finally find something that works.

 

See if anything here helps.

__________________
TomTom 720--NA Map 855--WCE Map 840--NZ Map 835--App 8.351

 

I've looked at so many things on the net that I can't remember where I saw this suggestion, but it seems to have worked.
Right click on your TT drive letter in Windows Explorer.
Choose Properties.
Choose Tools.
Under "Error-checking" push the "Check Now" button.
Check "Automatically fix file system errors", then press "Start".

It took 15 minutes or so to run on my 140s. Afterwards, I disconnected the device from TT Home, disconnected from the USB cable, and actually have a working device again.

I should qualify that. I'm at work in a building where I can't get GPS signals, but I can access all the normal menus running the device stand alone. Will check to see if I can actually navigate home later.

Good luck to all.