https://devzone.nordicsemi.com/f/nordic-q-a/117683/flashing-nrf52840-soc-in-nrf52840-dk-using-external-j-link-without-using-interface-mcu-so-using-nrf-only-modeHello, I am trying to flash the nRF52840 SoC on the nRF52840 DK using an external J-Link debugger, without relying on the interface MCU or the onboard J-Link. My current switch settings are as follows: SW6: nRF ONLY SW8: ON SW9: USB SW10: OFFen-USTelligent Community 13Thu, 02 Jan 2025 08:09:27 GMThttps://devzone.nordicsemi.com/thread/516599?ContentTypeID=1Thu, 02 Jan 2025 08:09:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6c15e6b0-181c-4abb-b26b-8364f766e692Jinuk<p>Oh my god..<br />I found out that I had connected the pins of P18 completely reversed.<br />I supplied power through J2, SW6 was set to nRF Only, and SW9 was set to VDD, and it worked fine.</p><div style="clear:both;"></div>