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nrf52840 dongle alway boot in dfu

nicolasp

Tried to flash ncp .hex for pca10059 on a brand new dongle and now it is stuck in dfu (pulsing red led). The process worked on a second dongle without any issues.

Something is wrong with the dongle?

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    Hi again

    This error points towards the init packet being generated for the wrong firmware. Which seems strange as this is a "fresh" Dongle. Could you please read out a few bytes from the flash for me? You'll have to use a debugger in order to do this. Use the command "nrfjprog --memrd 0x10000070 --n 16" and post the output here, please. I have to check if the Dongle acts as it should or not. 

    Best regards,

    Simon

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  • 0

    Hi again

    This error points towards the init packet being generated for the wrong firmware. Which seems strange as this is a "fresh" Dongle. Could you please read out a few bytes from the flash for me? You'll have to use a debugger in order to do this. Use the command "nrfjprog --memrd 0x10000070 --n 16" and post the output here, please. I have to check if the Dongle acts as it should or not. 

    Best regards,

    Simon

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