https://devzone.nordicsemi.com/f/nordic-q-a/91050/preprogram-custom-image-for-production-runHello everyone, I have built a product with the nRF52840 that is ready to be manufactured. Connect JTAG/SWD and upload image to each board seems grossly inefficient. Is there a way to preprogram a custom image (booloader + DFU + soft device + customen-USTelligent Community 13Wed, 17 Aug 2022 15:24:09 GMThttps://devzone.nordicsemi.com/thread/382095?ContentTypeID=1Wed, 17 Aug 2022 15:24:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d1410467-f07c-46c4-af78-68966971f958Steve.C<p>This is exactly what I was looking for.&nbsp; Thanks again.</p> <p></p> <p>Best,</p> <p>Steve</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/381970?ContentTypeID=1Wed, 17 Aug 2022 10:28:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:faa60ee1-f64c-4e46-bc2b-af5e9b6c7720Sigurd<p>Hi,</p> <p>Check out this whitepaper here:&nbsp;<a href="https://infocenter.nordicsemi.com/topic/nwp_027/WP/nwp_027/intro.html">https://infocenter.nordicsemi.com/topic/nwp_027/WP/nwp_027/intro.html</a></p> <p><br />Summarized:</p> <p>You have two options when programming for production:</p> <p>1) In-system programming (ISP): ISP is used when programming is needed after the assembly of the final PCB. Here we recommend using a SEGGER Production Programmer.</p> <p>2) Socket programming: Socket programming is used when the SoC is pre-programmed before it&#39;s mounted on a PCB. Here we recommend using a production programmer from either Elnec or Hi-Lo systems.</p><div style="clear:both;"></div>