Chosen Solution

The charger cable is working, as I have checked on another device, however the TomTom will not charge or even turn on.

It looks like battery issues are common on that model. If it is within warranty, they should replace it. However, if you are outside of warranty, this video show how to replace the battery. https://www.youtube.com/watch?v=Ax2rY7l-… Batteries https://www.google.com/search?q=battery+