When it comes to tools, there are 2 categories: the ones that can be used on the Media Nav unit and the ones used for developing firmware extensions (or even new firmwares).

Tools that can be used directly on the Media Nav, check MN1 & MN2 Tools or MN3 Tools, depending on your Media Nav version.

For developers, check Tools for Developers.

Separately, you can use our Unlock Code Calculator to find the authentification code of your Media Nav unit.