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I bought a Feather M0 Basic from a reseller Lawicel however I'm missing the UF2 boot feature. When I press the reset button two times I just get a serial and have to program circuitpython using Bossa. The UF2 FEATHERBOOT usb storage drive as described here doesnt show up.

I have a ARM-ICE and wired up the Feather board via SWD. I can re-program the bootloader (first setting fuse to NVMCTRL_BOOTPROT 0x7 as described here ) via ARM-ICE.

However it seems that the Arduino bootloader featherm0bootloader_160305.zip is an old one that doesnt support the UF2 usb storage device programming protocol.

Where can I download a more recent bootloader that supports UF2 ?

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