what you'll need: Via built-in web portal (Ethernet/WiFi connection to Stardust) or front-panel menu; no separate downloadable firmware file found on support site as of extraction date
1Connect a laptop or phone to the same network as the Stardust unit (Ethernet or 5GHz WiFi)
2Open a browser and navigate to the Stardust IP address to access the web portal
3Look for a Firmware Update or System section in the web portal menu
4Follow the on-screen instructions to check for and apply available firmware updates
GotchaNo standalone firmware download URL is publicly accessible on lumenradio.com; firmware may be delivered only via the web portal update check
GotchaLumenRadio support page lists 'Firmware Release Notes' for Stardust but the associated PDF (dated 2022-03-17) does not include Stardust-specific version strings in its extractable metadata
GotchaStardust user manual updated 2026-04-09 - check the manual for latest update instructions
WarningBackup battery runtime is 15 minutes; do not perform firmware update on battery power alone