: These units look identical. To check which one you have, press and hold the
: Tech-savvy users sometimes use Linux tools (like mmc_tools found on GitHub ) to change the CID of specific older Samsung EVO SD cards to match a genuine VW card, but this is a complex technical process . 4. Recommended Products & Sources
: Displays 3 lines of information (Part number, Software version, System hardware version).
: When an official SD card is inserted, the RNS 310 "locks" the card to that specific vehicle's hardware. Once bound, the card cannot be used to update a different vehicle, making second-hand "used" cards ineffective for map updates. Plug-and-Play
: The system checks for a specific "CID" (Card Identification) number on the SD card. Standard retail SD cards do not match the required ID, so simply copying files from a download to a regular card will often result in a "Data error" .
Unzip your downloaded map files and copy them to the root directory of the SD card. Do not put them inside another folder; the system needs to see the "navpsf_update" folder immediately. 4. Install the Maps Insert the prepared SD card into the RNS 310 slot.