Thread: Mix of Tomtom and HERE files on IGO?

For one country can only be map files of one provider. In all situations.
But, can you even mix providers at all - depends on software.
What is exact version of software in unit?

Actually, the story is a little longer.
Once (upon the time ) the all maps were compatible, and you could have used it mixed. From TeleAtlas (TomTom today), Navteq (here), and a bunch of local providers (TopMap editions - Basar, CEDA, Epsilon, Navigo...etc ). Then everyone (actually - the large ones) started pulling at their own side. Problems with various editions began to appear.
The maps were no longer fitting, which was seen at the border crossings, which was a minor problem.
Then appeared the serious problem - routing is bypassed state of another provider.
Ie, the software is recognized all maps, but during routing taking into consideration only one edition.
That's why are designed mapchangers.