nRF9151 SWD Interface – Programming Modem Firmware and Application MCUhttps://devzone.nordicsemi.com/f/nordic-q-a/127320/nrf9151-swd-interface-programming-modem-firmware-and-application-mcuHello, I am currently designing a custom board using the nRF9151 and I have a question regarding the SWD interface. My understanding is that the nRF9151 contains two main firmware components: - The modem firmware responsible for LTE/NTN/GNSS communicationsen-USTelligent Community 13Mon, 09 Mar 2026 09:58:59 GMTRE: nRF9151 SWD Interface – Programming Modem Firmware and Application MCUhttps://devzone.nordicsemi.com/thread/562790?ContentTypeID=1Mon, 09 Mar 2026 09:58:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:abc2a63b-77ff-4567-978f-b24b3b1c8c3fEinar Thorsrud<p>Hi,</p> <p>SWD is sufficient to program both the application firmware and modem firmware. You can read more&nbsp;under <a href="https://docs.nordicsemi.com/bundle/nwp_055/page/WP/nwp_034/modem_fw.html">Programming modem firmware</a>.</p><div style="clear:both;"></div>