Hi my name is ***** ***** I will be the expert working with you today to help resolve your problem.
Follow these steps : make sure the Tomtom has enough battery power or charged atleast 2 hrs.
Push and hold down the power button for 45 seconds and release it please note 45 seconds.
After following the steps connect to the computer and then let me know how it goes.
How old is the Tomtom?