https://devzone.nordicsemi.com/f/nordic-q-a/119576/enable-mcuboot-no-longer-availableI have been using the nRF Connect for Desktop with the Programmer application for several years to attach our end device to the Dev Kit to program our device with no issues. This is not a frequent task for me, but have done it multiple times per yearen-USTelligent Community 13Thu, 06 Mar 2025 15:35:27 GMThttps://devzone.nordicsemi.com/thread/526220?ContentTypeID=1Thu, 06 Mar 2025 15:35:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4db88862-b9ae-4b63-92a1-c6b8662f9524Menon<p>Hello,</p> <p>The &quot;Enable MCUboot&quot; button can only be used with Thingy devices, as they come with built-in MCUboot. This is not the case with DK or custom boards. You may need to use an external debugger to program your custom board.</p> <p>Kind regards,<br />Abhijith</p><div style="clear:both;"></div>