How do I configure my firewall setting so my PCM recognises my tomtom

Try a soft reset first - hold the on button down for 20-25 seconds to do this. Most of the time this will fix starting issues.

If the tomtom still won't start you need to connect to your computer via usb cable and start tomtom home (downloadable from the tomtom website) - an auto update should fix it if the tomtom is recognised.

If tomtom home cannot recognise it (shows no device connected) contact tomtom customer support who will send you a software reset - then eventually you wil be back up and running!

Since the phone worked before the visibility issue is unlikely to be the cause. Try plugging your TomTom into your computer. In the my tomtom software, select manage my TomTom. Now find and select the item about mobile phone settings and delete it. That should fix the problem when you next ask the TomTom to set up a connection with your phone.

Red cross issue:
http://www.tomtom.com/support/index.php?Language=1&query=red+cross&FID=1898

Device not recognised by pc:
http://www.tomtom.com/support/index.php?Language=1&query=connect+to+home&FID=7375

Device not recognised by TomTom Home:
http://www.tomtom.com/support/index.php?Language=1&query=connect+to+home&FID=7375

Had the same problem after using latest Home download and then next PC boot could not recognise tomtom. Fixed by pushing the reset on the bottom of the TomTom. Then connected to the PC again and all works

Red cross issue:
http://www.tomtom.com/support/index.php?Language=1&query=red+cross&FID=1898

Device not recognised by PC:
http://www.tomtom.com/support/index.php?Language=1&query=connect+to+home&FID=7375

Device not recognised by TomTom Home:
http://www.tomtom.com/support/index.php?Language=1&query=connect+to+home&FID=7375

I had the same problem and solved by accident:
use Tomtom Home>>Operate my device, beneth the simulated screen there is an option to "set current position", click it and manage to configure voice selection, choose any and go back.
unplug your tomtom and it should be working again

http://www.tomtom.com/support/index.php?Language=1&query=red+cross&FID=1898

pressed RESET button on TomTom & usb device then recognised.

I had a similar problem when trying to update my dad’s old TomTom Go300. I bought a new map and downloaded TomTom Home 2 (as instructed on the website) but found that the Go300 was recognised by the computer it wasn't recognised by TomTom's own Home 2 software.

To cut a long story short I uninstalled Home 2 and downloaded Home 1 (from http://www.tomtom.com/plus/service.php?ID=17 Home 1 is the one on the right, listed as being the version of Home you use for Navigator 6).

Then when I switched the Go300 on it was recognised by Home1 - although the new map I had bought wasn't listed as being available for download.

However, I updated the Go300 with the available listed free updates, then switched it off.

Downloaded Home 2 again and switched the Go300 on - this time it was recognised by the computer and the new map I had bought was available to download.

So far so good - the only problem was the the postcode search facility was not the same as it had been - I could now only search the first 4 digits of the postcode. There is a fix for this on the tomtom website:

http://www.tomtom.com/support/index.php?Language=1&query=postcode&FID=9852

which I followed and which worked.

Hope this may be of some use to someone! It took me hours to figure it all out. But it's up and running now.

Redd




I read and read and re-read the TomTom website looking for any info that would help but came up with nothing. A few hours later and the air thick with torrents of language I didn’t think I was capable of I discovered that I needed to download Home1 first and let the Go300 connect to the computer via Home1 before it would be recognisable by Home2. Okay…
On the website, though, Home1 is listed as being the version you use if you have TomTom Navigator 6. It’s not even called ‘Home 1′. Confusing eh? Anyway, I downloaded that and from there found that I could get my new map onto my Go300. Once the map and other updates were installed and I had switched the thing off I then found that Home2 recognised it at last.
That had to be one of the most ridiculously long-winded things I’ve had to do on a computer, mainly because TomTom’s confusing advice on their website made the whole process so damn difficult. Perhaps they hoped I’d give up and buy a new one? Tsk.
Redd

Have you created a TomTom account? For each device you own it needs its own e mail address which it links to and you need to be logged in when you plug in your Tomtom.