https://devzone.nordicsemi.com/f/nordic-q-a/25572/how-to-configure-nrf51-dk-to-flash-firmware-to-a-different-nrf51-moduleHi all, I have here NRF51-DK, I am a bit familiar with the kit for a while. Now I want to make a system using NRF518422 chip. I manage to find a module - &quot;Taiyo Yuden EYAGJNZXX&quot;. My question is, Is there a way to make use of my NRF51-DK to flashen-USTelligent Community 13Fri, 29 Sep 2017 07:24:01 GMThttps://devzone.nordicsemi.com/thread/100809?ContentTypeID=1Fri, 29 Sep 2017 07:24:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d446c229-ac75-477a-85cf-77601dbac263endnode<p>I usually use P20 with some speed wires, providing 3V3 from nRF5x DK and then properly grounding whole system + the final trick of connecting VTG detect with 3V3 (shorting PINs 2 and 3 on P20) makes the job for me basically always...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/100808?ContentTypeID=1Fri, 29 Sep 2017 07:21:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7489f1b4-1bae-4620-a532-98e6f038dd4bDenver<p>Hi thank you for that. Actually I already manage to locate the pins. I was kind of worried that there might be some setup that I am missing. :)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/100807?ContentTypeID=1Fri, 29 Sep 2017 07:16:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6870fbd4-c414-47dd-a72c-cfe76e38f757endnode<p>If you search this forum there are literally dozens of similar questions which were answered. You need to connect it through P19 or P20 headers (JTAG/SWD OUT ports), see Dev Kit&#39;s user guide how to locate them. The magic is in wiring correctly also Voltage and Ground detect PINs so J-Link OB FW on the Dev Kit will detect external target on one of these ports and don&#39;t try to flash internal nRF5x chip on the Dev Kit.</p><div style="clear:both;"></div>