I have a question regarding DFU while transitioning from development using the nRF52832 with the nRF5 SDK to the nRF5340 with NCS. Currently, I have a DFU app developed for the nRF52832 with the nRF5 SDK, but it seems unable to update firmware developed with the nRF5340 and NCS. Could you explain the reason for this? Do I need to redevelop the DFU app? I would like detailed information on this matter.