A standard, commercially available SD card cannot have its CID changed easily. If you simply download map files from the internet and drag them onto a standard SD card, the RNS 315 will reject the card immediately with an error message. Risks of Pirated Downloads
If the map data shows a low version number (such as v.1 or v.2), you are significantly out of date. How to Acquire a Working v.4 (or Newer) Map Update download RNS 315 v.4 Map Update - SD Card
Official RNS 315 updates use a specialized copy-protection system. The unit verifies a embedded in the SD card's hardware. A standard, commercially available SD card cannot have
: The RNS 315 system has been updated many times; while you mentioned v.4, later versions like (North America) and (Europe) are currently available through secondary markets. Official Purchase : Authentic update cards were historically sold through the Volkswagen Navigation Store for approximately $199. Third-Party Options How to Acquire a Working v
Do not turn off the ignition immediately. Wait an extra 15 minutes. If it remains completely frozen, restart the infotainment system by holding down the power knob for 10 seconds and restart the installation process. The System Asks for a PIN Code