BLE FOTA Swap Validation Failure on nRF7002DK + nRF5340DK (SDK v2.6.1)

Hi Team,

We’re using the nRF7002DK + nRF5340DK (cpuapp) with nRF Connect SDK v2.6.1, and we’ve run into an issue during the BLE-based firmware update process:

1. The image is successfully downloaded via BLE using app_update.bin in external flash.
2. The swap process is triggered and completes as expected.
3. The swap flag is set successfully.
4. However, after reboot, MCUboot fails to validate the new image, and the system does not boot into the updated application.

Could you help us identify the root cause?

Best Regards

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0 AHaug 6 months ago

Hi,

Could you revise the steps in https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/topic/exercise-5-fota-over-bluetooth-low-energy/ and also attach device logs throughout the DFU procedure?

If it's in loader.c, where do you see it halting?

Kind regards,
Andreas
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0 AHaug 6 months ago

Hi,

Could you revise the steps in https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/topic/exercise-5-fota-over-bluetooth-low-energy/ and also attach device logs throughout the DFU procedure?

If it's in loader.c, where do you see it halting?

Kind regards,
Andreas
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