Firmware update

this page explains how to flash the mcu firmware file ( uf2 ) to the flipper one mcu via usb to flash firmware to the flipper one mcu get the uf2 firmware file download the file from update server https //update flipperzero one/builds/flipper one mcu/dev/ or build the file from source code docid 8d3lk776esov2hq1ztrw — if you modified the firmware connect flipper one to your pc via the usb c 1 port switch the mcu to bootsel mode step 1 press and hold the ptt button bootsel step 1 hold ptt button step 2 press and hold left and back buttons for 3 seconds , then release bootsel step 2 hold left and back buttons step 3 release the ptt button bootsel step 3 release ptt button after switching the mcu to bootsel mode, flipper one's screen goes black and the device appears on your pc as a mass storage device named rp2350 if flipper one does not appear, try a different usb cable and repeat the bootsel procedure upload the uf2 firmware file to the rp2350 mass storage device once the uf2 file upload is complete, the flipper one will automatically reboot and the mass storage device will disconnect from your pc — the mcu firmware has been successfully updated