https://devzone.nordicsemi.com/f/nordic-q-a/62559/pc-nrfutil-and-sdk-bootloader-version-pairingI want to update pc-nrfutil to a newer release. Does each pc-nrfutil release correlate or pair with Bootloader from certaon SDK version?en-USTelligent Community 13Sun, 21 Jun 2020 18:12:39 GMThttps://devzone.nordicsemi.com/thread/256065?ContentTypeID=1Sun, 21 Jun 2020 18:12:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a7ae4339-7cdd-4f99-99fb-71443759b8f1Harry<p>Thank you so much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/254889?ContentTypeID=1Mon, 15 Jun 2020 07:38:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:893d284d-3da8-443c-a3b7-ca5059d050cbVidar Berg<p>Hello,</p> <p>It depends on what SDK version your current bootloader is based on. Excerpt from the nRF Util documentation:</p> <p><a href="https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html?cp=8_5">The DFU package format transitioned from legacy to modern in nRF5 SDK v12.0.0. Depending on the SDK version that you are using, select a compatible release of this tool:</a></p> <div> <ul> <li><a href="https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html?cp=8_5">Version 0.5.x generates legacy firmware packages compatible with nRF5 SDK v11.0.0 and earlier.</a></li> <li><a href="https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html?cp=8_5">Version 1.5.0 and later generate modern firmware packages compatible with nRF5 SDK v12.0.0 and later.</a></li> <li><a href="https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html?cp=8_5">Version 2.2.0 or later is required to generate a bootloader settings page that is compatible with nRF52840.</a></li> <li><a href="https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html?cp=8_5">Version 4.0.0 and later generate modern firmware packages compatible with nRF5 SDK v15.1.0 and later.</a></li> <li><a href="https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html?cp=8_5">Version 5.0.0 and later generate modern firmware packages compatible with nRF5 SDK v15.3.0 and later.</a></li> </ul> </div> <div><a href="https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html?cp=8_5"><span>Note:</span> To create firmware images compatible with nRF SDK 12.0 to nRF SDK 15.0, use the <code>--no-backup</code> command when generating <dfn>DFU</dfn> settings.</a></div> <div></div> <div>Also, remember that Python 3 is required starting from nRF Util version 6.0.0</div><div style="clear:both;"></div>