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nRF52805 OTA DFU no Bluetooth signal

Jeremy Wu

Hi,

I built a ble_app_buttonless_dfu_pca10040e_s112 project on the nRF52805. However, I cannot receive Bluetooth signal on nRF connect.

I have attached my generated hex file and used command in this post. 

Please help me out. Thanks in advance!

1817.OTA.zip

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  • 0

    Hi,

    The attached hex files looks right to me, and indeed seem to work on my nRF52 DK (PCA10040).

    However, the command I used for programming was slighlty different from that in the attached text file: The last option should be "--reset" (with two dashes) and not "-reset" (with one dash). With the wrong version of the option, the board is not reset after programming. Manually resetting it, or correctly applying --reset, makes it work.

    I find it a bit strange that nrfjprog doesn't give any error response on the erroneous "-reset" option. If anything I would have expected it to treat r, e, s, e and t as individual short form options (which should both apply reset (-r) and trigger error on wrong use of the -s parameter.) The behavior looks like silently dropping wrongly formatted options, which I consider a bug. I have reported it internally for the nrfjprog team to look into and hopefully patch for a future nrfjprog release.

    Regards,
    Terje

  • +1 in reply to tesc

    Hi,

    Did this solve the issue? If so I would appreciate if you accept the answer, so that others will find it and get help from it in the future.

    Regards,
    Terje

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