A pre-release. Install it from https://charlesvestal.github.io/fm1-radio/install/ (Chrome or Edge, the FM-1 on USB).
The newer FM-1s
- Units sold since autumn 2026 carry a different flash chip (UC25HQ80). On those, Radio could not keep favorites, saved networks or settings, and could not install another firmware. Radio 1.3.1 takes both chips. Thanks to Laurens (@profikid) for fm1-base#35.
Debugging
- The USB dump (
app/tools/radio_ctl.py dump) prints its lines with single spaces, to make room. Nothing it reports is lost.
If your FM-1 crashes or won't stay on your WiFi, please send the installer page's "Report a problem".