Hi,

I've had this problem with my tom tom one xl for ages now. Tried lots of things, nothin has worked. Ur solution went as far as the black screen with the system info, but the 3 presses of the on/off button just restarts into a screen which says, 'No maps found! Connect your device to TomTom HOME and check for updates. Install all updates listed. If the problem still occurs, visit www.tomtom.com/support and search for 'no maps found. Follow the instructions in the help topics.

Useful help from tomtom there ay? pffft