nfr52840 MDK USB Dongle not updating farmware

[Omar-Abdul-Aziz]

Hello,

I bought the Makerdiary nfr52840 MDK USB Dongle and tried to update to openthread firmware. At some point after draging and dropin the uf2 file to the dongle in boot mode, the dongle ejected and no more green light. It only lights up if I press the button and put it in boot mode.

Is it fired?

Thanks,
Omar

[tpjanssen]

I'm having the exact same thing. According instructions on this page, a right LED should start blinking red, but same happens as @Omar-Abdul-Aziz described: the dongle rejects.

Any thoughts?