Creating a version file
In order for the TomTom device to be aware of versions of your POI set you need to create one more file, the .ver file. This is a simple text file that you can create with any text editor. It should look like this:
Note: For ID, make sure you use the exact name of your POI set without the .ov2 suffix. See Naming your POI set.
Next step: Test your POI set.