If you prefer not to download, order a from your dealer. However, this is more expensive and slower.
Follow the on-screen prompts to begin the installation. download RNS 315 v.4 Map Update - SD Card
To recap the process to :
Version 4 is likely the final update. HERE Technologies stopped major map updates for RNS 315 in 2024. Version 4 includes data up to late 2025. If you prefer not to download, order a from your dealer
Before seeking out v.4, check what you currently have installed: Press and hold the button for about 10 seconds. Select "Versions" from the on-screen menu. If you prefer not to download