I had the same problem with Home2.2 Icontacted support and got the following reply.
Quote
"To solve your issue with TomTom Home, please do the following:-
STEP 1
- Uninstall TomTom Home, click on Start -> All Programs -> TomTom -> Uninstall TomTom Home.
- Delete the following folder from your PC 'My Documents/TomTom/Home/Downloads'.
- Download TomTom Home 1.5 from
http://download.tomtom.com/sweet/application/latest/TomTomHOMEwinlatest.exe
STEP 2
- Connect the TomTom to the PC and switch it on
- In TomTom Home, click on Device -> Change device
- Does TomTom Home 1.5 recognize your device? If so, download all the available application updates by clicking on 'Update now'.
- Once downloaded and installed, switch the TomTom off, disconnect it from the PC and switch it back on.
Repeat step 2, until there are no further application updates. Once you have done this, please download TomTom Home 2.2 from:-
http://download.tomtom.com/sweet/application/home2latest/TomTomHOME2winlatest.exe
If the installation asks you to remove Home 1.5 from your PC, say no to this, we need both versions of Home installed on your PC so that we can resolve your issue.
- Close TomTom Home from the system tray in the bottom right hand corner of your screen by the system clock, there might be a red icon there for TomTom Home, if so , right click on it and choose exit.
- Open TomTom Home 2.2, does it now recognize your device?"
unquote.
I did it a little differently, I put 1.5 on my desktop and upgraded from firmware 5.41 to 6.5
Then I connected Tom Tom to my laptop with Home 2.2 and it connected and updated .