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How to DFU(nRF Connect Android) the Bootloader only?

role_2099

Hi nordic,

I want dfu the BL only, how should I pack file? Can show me how to pack instructions of nRF Util, only update bootloader.

Thanks and best regards!

John

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  • +1

    Hi,

    Please see Creating a firmware package with nrfutil, as well as the help text provided from nrfutil pkg generate --help.

    To generate a package for a bootloader, where the hex file of the bootloader is named bootloader.hex, the bootloader version is 1, the bootloader requires the SoftDevice with ID 0xFF, and the signing key is key.pem, use: nrfutil pkg generate --bootloader bootloader.hex --bootloader-version 1 --sd-req 0xFF --key-file key.pem.

    If you have any difficulties or see any issues, please describe what you do, what you think should happen, and what happens instead.

    Regards,
    Terje

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  • +1

    Hi,

    Please see Creating a firmware package with nrfutil, as well as the help text provided from nrfutil pkg generate --help.

    To generate a package for a bootloader, where the hex file of the bootloader is named bootloader.hex, the bootloader version is 1, the bootloader requires the SoftDevice with ID 0xFF, and the signing key is key.pem, use: nrfutil pkg generate --bootloader bootloader.hex --bootloader-version 1 --sd-req 0xFF --key-file key.pem.

    If you have any difficulties or see any issues, please describe what you do, what you think should happen, and what happens instead.

    Regards,
    Terje

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