How to update the device
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- Download and un-zip the latest firmware from here: Downloads
- Hold your Cerise transmitter and press and hold the BOOT button (1)
- While holding the button down, plug the transmitter in your computer with a USB type-C cable
- A new mass storage device should appear called RPI-RP2, drag and drop your CeriseFirmwareXXX.uf2 file onto it
- Wait until the transfer is complete, then power cycle the unit (unplug it, then plug it back in)
On a Mac, the copy window can look stuck: the progress bar slides back and forth without filling up. That's normal. Wait about 30 seconds and the copy will finish.
?Copying “Cerise-fw-1.8.11.uf2” to “RPI-RP2”Zero bytes of 4.5 MB – Estimating time remaining…
If Cerise doesn't answer at 172.30.0.1 after the update, do a factory reset to restore the default USB address.