https://devzone.nordicsemi.com/f/nordic-q-a/116255/5340dk-light-switch-load-runDear all: I used this command to build light switch for 5340DK: west build -p always --build-dir nrf/samples/matter/light_switch/build -b nrf5340dk_nrf5340_cpuapp nrf/samples/matter/light_switch There are 3 hex files generated: zephyr.hex, mergeden-USTelligent Community 13Tue, 12 Nov 2024 02:48:56 GMThttps://devzone.nordicsemi.com/thread/510010?ContentTypeID=1Tue, 12 Nov 2024 02:48:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2db28212-1025-47be-b459-31259bf42af1susepc<p><a href="https://devzone.nordicsemi.com/members/tesc">tesc</a>&nbsp;</p> <p>&nbsp; &nbsp; &nbsp; &nbsp; Thanks for you clear response!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/509920?ContentTypeID=1Mon, 11 Nov 2024 14:25:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:96c2a28e-f396-4eef-9888-bccf01c9af73tesc<p>Hi,</p> <p>This depends a bit on version of nRF Connect SDK, but up until nRF Connect SDK v2.6.2, zephyr.hex is a single image, merged.hex is all images for a given core, and merged_domains.hex is all images for all cores. This means in order to program every part of the application (both for the app core and for the net core), you should program merged_domains.hex. Please see <a href="https://docs.nordicsemi.com/bundle/ncs-2.6.2/page/nrf/config_and_build/configuring_app/output_build_files.html">Output build files (image files)</a> for details.</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>