: It enables the use of 32GB SDHC cards , a massive jump from the 2GB limit on original firmware.
: Many versions of this firmware include a built-in "hack" that allows passengers to watch DVDs while the vehicle is moving (originally disabled for speeds over 5 mph). rns 510 firmware 5238
: Adds 7-digit postcode search (essential for UK users) and displays speed limits directly on the map. : It enables the use of 32GB SDHC