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  • Case ID: 282726
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Unable to program nRF5340 DK

user104424

Hi, I'm following the steps on https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_gsg_ncs%2FUG%2Fgsg%2Ffirst_test.html

But in Programmer, the read, write, erase&write, etc buttons are all gray.

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    Hello Aobo,

    You can try to disconnect the DK and inset it again, pressing the reset button (SW5) and then read the flash. 

    The issue might be the readback protection is enabled. You can also recover the device from command terminal using following command.

    nrfjprog --recover --coprocessor CP_NETWORK

    nrfjprog --recover

    This command is for removing readback protection and for performing erasing and flashing of the device as well. One thing you have to make sure that to recover the network core first. 

    Try this and let me know the outcome.

    Best Regards,

    Kazi Afroza Sultana

  • 0 in reply to user108933

    Hi, Kazi,

    I tried 

    nrfjprog --recover --coprocessor CP_NETWORK

    nrfjprog --recover

    I can erase & write. But the nRF Toolbox app cannot find the Dev Kit after I reset(or re-power) it.

     

     

  • 0 in reply to user104424

    When I add files without selecting the dev kit. The file memory layout is different. 

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