Ok, lets start with explaining the different code types:
The TomTom product code consists of 15 characters. It is a unique code to prove that you have an official TomTom product and hence you need it for product activation.
The device code consists of 10 characters. It is different for every device, so make sure you use the device code for your own device, on which you want to use the software.
When you activate manually
the device code is shown on your device during activation.Click here
for help on where to find your device code.
The activation code consists of 15 characters. It is generated from the product code and the device code. This activation code is required to run the software on your device. It only enables the software to run on that particular device.
In most cases the software is activated automatically using an existing internet connection.
In some cases you may have to manually activate your software. In this case the product code and the device code generate a unique activation code. Enter this code on your device.
Go to http://www.ttcode.com/
to obtain an activation code for manual activation.
What to do if the activation fails
Make sure you have the latest version of the TomTom application installed on your TomTom device.
If you can’t activate a map on your TomTom GO / ONE / RIDER,
, follow instructions here