Unable to program nRF52840 dongle by drag-drap .uf2 file into UF2BOOT volume #13
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jakejunk150
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I think I may have corrupted the bootloader. When I plug it in while holding the reset button, nothing happens. Once I release, it blinks red twice. If I click it while inserted, it will also blink red. If I hold, then it will turn green and the UF2BOOT volume pops up in my finder.
There is currently no soft device located on it.
My goal is still get the nRF Connect Sniffer running on it.
I used both of these commands to convert the hex file provided by nRF connect into uf2 files:
uf2conv -f 0xADA52840 -c -o application.uf2 application.hex
uf2conv -f 0xD663823C -c -o bootloader.uf2 bootloader.hex
And then I drag-and-drop the files onto the UF2BOOT volume. Both of them give me an error and sometimes the bootloader will eject itself and the error will be "bootloader not found." The other error is says something about being unable to read from file (error -36) but I am sure the file is readable.
Please advise
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