NRF5340 stuck in bootloop after bad flashhttps://devzone.nordicsemi.com/f/nordic-q-a/127292/nrf5340-stuck-in-bootloop-after-bad-flashI have an NRF5340 running the B0 secure bootloader and dual S0,S1 bootloaders along with my app image. During flashing, the image was not fully flashed and resulted in a corrupted image causing the device to continuously bootloop and is unresponsiveen-USTelligent Community 13Mon, 09 Mar 2026 13:53:15 GMTRE: NRF5340 stuck in bootloop after bad flashhttps://devzone.nordicsemi.com/thread/562828?ContentTypeID=1Mon, 09 Mar 2026 13:53:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dd0875bf-c647-4443-87ca-46326b985e41Menon<p>Glad to hear that it worked.</p><div style="clear:both;"></div>RE: NRF5340 stuck in bootloop after bad flashhttps://devzone.nordicsemi.com/thread/562826?ContentTypeID=1Mon, 09 Mar 2026 13:36:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:09f20054-b6c3-4968-bc4a-8c10fbc11e9eanthony32086<pre class=" language-text " data-explanation-rendered="true"><code class=" language-text ">&quot;nrfutil device recover</code>&quot; worked, though I am not sure what is fundamentally different from &quot;nrfjprog --recover&quot;</pre><div style="clear:both;"></div>RE: NRF5340 stuck in bootloop after bad flashhttps://devzone.nordicsemi.com/thread/562723?ContentTypeID=1Fri, 06 Mar 2026 12:53:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cdab3a00-2280-4111-969b-42103aeaed99Menon<p>Hello,</p> <p>Could you try to recover the device using nrfutil? Please try recovering the network core before recovering the application core. You can follow the steps mentioned under &#39;<a href="https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming_readback_protection.html#recovering-a-protected-device">Recovering a Protected Device</a>&#39;.</p> <p>Kind Regards,</p> <p>Abhijith</p><div style="clear:both;"></div>RE: NRF5340 stuck in bootloop after bad flashhttps://devzone.nordicsemi.com/thread/562713?ContentTypeID=1Fri, 06 Mar 2026 10:22:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:093b11a6-c511-4da9-94ac-df711f3c7fbfMenon<p>Hello,</p> <p>Just letting you know that I am currently working on this and will update you soon.</p> <p>Kind Regards,</p> <p>Abhijith</p><div style="clear:both;"></div>RE: NRF5340 stuck in bootloop after bad flashhttps://devzone.nordicsemi.com/thread/562699?ContentTypeID=1Fri, 06 Mar 2026 06:13:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d8db7b21-27c5-4bff-be44-de7019aa9eb9Turbo J<p>The recover function requires the reset pin in addition to the SWD and power pins - check that those are properly connected through.</p><div style="clear:both;"></div>