If you have the 4.5 version you cannot upgrade to the 6.1. The reason is because the 4.5 version runs on the old antenna and the 6.1 version runs on the newer M4 antenna. When the new M4 antenna was implaces the version was 2.9. This version is more recent then the 4.5. Don't worry about the upgrade if your RD works fine. Mine is the 4.5 and have had 0 problemsQuote:
Originally Posted by radardan24
