You must locate a rare, older Samsung Evo SD card (manufactured before 2016) that allows its CID to be overwritten via a Linux terminal.
A program like 7-Zip or WinRAR to extract the downloaded files. download RNS 315 v.4 Map Update - SD Card
Because downloading and burning your own card is incredibly complex, the most efficient and reliable way to get the v.4 map update is to purchase a pre-loaded, pre-encrypted SD card. You must locate a rare, older Samsung Evo
Before attempting an update, it is critical to understand how the RNS 315 handles its navigation data. This technical framework dictates how you can and cannot update the system. Before attempting an update, it is critical to
The screen will automatically change and recognize the new navigation medium. It will present you with two options:
and specific copy protection that locks the card to a single vehicle once installed. How to Update Your RNS 315 Maps
Do not turn off the radio, do not turn off the engine, and do not eject the card while the progress bar is moving.