nrf_dfu_mbr_copy_sd returning NRF_ERROR_INTERNAL

[Ken]

We are running a nRF52832 with SD132. We are attempting to update the soft device as part of our custom boot loader with the nrf_dfu_mbr_copy_sd. It returns NRF_ERROR_INTERNAL. Is there anything that can be looked at to determine what the error is? The destination flash is erased by the nrf_dfu_mbr_copy_sd function call.

Tried a couple different parameter combinations, but one was pSrc = 0x1f000 pDest = 0x1000 pSize = 0x1000

[bjorn-spockeli]

According to the API documentation, found here, NRF_ERROR_INTERNAL indicates that the contents of the memory blocks where not verified correctly after copying. Could you post the code snippet where you call nrf_dfu_mbr_copy_sd?