Anderson22

Hi All, New to the forum & have done a few searches but came short. I recently purchased a 2007 IS250 and having issues with my SAT NAV. Flickering, Lagging my friend who kindly recommended me to check the DVD itself which i did appears heavily scratched. It is currently a version 12 & was wondering if there was any way I could download the same version or anything that is compatible with my model Any help would be greatly apprecieated Thanks Andy