Make Noise Mimeophon

Firmware is installed via WAV audio playback. Power on the system while holding the SKEW button — the Zone window will turn white/pink and all three buttons will light up. Release SKEW, then play the firmware WAV file from a computer or audio source at full volume into the module's audio input. The Activity Windows will flash to confirm reception. Once complete, all lights flash and the audio tone stops. Power cycle to verify. No dedicated software required.