Amundsen reset

I am having an issue I think with the Amundsen sat nav unit in that the small panel between the speedo and the rev counter automatically comes up with a reference to there being no blue tooth device or it has broken down. Having read on here about the 3 button reset for the Columbus unit I tried that but nothing, the warning remains on all the time unless I select sat nav then it reverts to mini sat nav. When I got the car you could have various things showing there including the digital speedo but no longer. Is the reset the same on the Amundsen unit or is there a different way of doing it.

I have set it not to search for blue tooth devices but it still seems to want to do it all the time.