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Combined bootloader and application update

chrizz

After reading some older threads it seems to me that someday it must have been possible to update bootloader and application with one zip file.

Currently I'm using sd 132 on nrf52832 (with SKD 12.2). Trying to create a package with bootloader and application nrfutil (v3.2.0) says this combination is not possible. So is this combo absolutely impossible anymore?

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    You are correct, it is not possible to create a combined bootloader and application image with nrfutil v1.5.0 or newer, as stated in the nrfutil documentation in the GitHub repository Readme file.

    This was possible with the Legacy Bootloader(SDK v11.0.0 and older), but it is no longer possible with the Secure Bootloader(SDK v12.0.0 and upwards).

    You will have to create to separate images and perform two DFUs.

    Best regards

    Bjørn

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