https://devzone.nordicsemi.com/f/nordic-q-a/89940/nrf52840-dk-as-a-nrf8340-programmer-debuggerHi, I have a nRF52840-DK which comes with an o n-board SEGGER J-Link debugger/programmer to use with the internal microcontroller or an external one. Also, I bought a Fanstel BC40C (EVM-BC40-V0) development kit based on a nRF8340. The Fanstel kiten-USTelligent Community 13Thu, 14 Jul 2022 12:37:49 GMThttps://devzone.nordicsemi.com/thread/376949?ContentTypeID=1Thu, 14 Jul 2022 12:37:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c895971f-42d2-4700-94a0-0b1482a4de68SwRa<p>Hi Pablo,</p> <p>nRF5240-DK cannot be used to program any board based on nRF5340.. You will either need to use the nRF5340DK or the nRF9160DK or a dedicated programmer to do this..</p> <p>Best Regards,</p> <p>Swathy</p><div style="clear:both;"></div>