hash verification not valid

[ahmed_]

Hi Nordic..

currently we are going to implement serial bootloader dfu from other MCU (infineon chip).

We have create flasher from MCU to nrf52832 to do serial fw update.

All transfer file from init until image data are successfully but We got error on hash verification.

We have tried the bootloader with PC nrfutil, with same resource (dfu package & bootloader) ,serial update is working.

but when we used our flasher, all data has been transfer correctly (included checksum).

but we got error hash when validating the image.

actually, the condition is same with this thread:

https://devzone.nordicsemi.com/f/nordic-q-a/48750/hash-validation-failure-when-dfu-package-transferred-manually-nrf_dfu_validation-hash-verification-failed

We got error hash verification not valid, however the all checksum from file transfer are correct.

any solution? thanks