https://devzone.nordicsemi.com/f/nordic-q-a/49155/getting-consistently-stuck-at-a-secure-boot-spin-with-basic-configuration-on-nrf9160-dkHi, I understand there have been a few changes in the nRF Connect SDK with regards to Secure Boot and SPM. I&#39;ve been stuck for many hours trying to understand why I&#39;m stuck in a boot loop in the secure partition, and never reach application code.en-USTelligent Community 13Sun, 07 Jul 2019 17:34:21 GMThttps://devzone.nordicsemi.com/thread/196971?ContentTypeID=1Sun, 07 Jul 2019 17:34:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4ce78988-54c2-4763-aa25-a5f5aba3f132bencra<p>Hi, that worked a treat. Any reason why this is required? Shouldn&#39;t the flash overwrite necessary memory?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/195720?ContentTypeID=1Mon, 01 Jul 2019 14:45:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ee15560d-320f-4a55-9335-a73ae2f2e597Martin Lesund<p>Hi Ben,</p> <p><br />Please try to remove whatever could be on the nRF91 flash by the command:</p> <p>nrfjprog -e</p> <p></p> <p>then re-flash your application.</p> <p></p> <p>Best Regards,</p> <p>Martin L.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/195480?ContentTypeID=1Sun, 30 Jun 2019 11:38:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39261eab-fb59-497f-b4f9-cbe1175a6e7ebencra<p>Hi, I&#39;ve just checked-out v0.4.0 and I&#39;m still encountering the same issue - just spinning at the secure boot stage. Does using GCC 9.1.0 have any impact?</p> <p>EDIT: Upon further investigation - no, changing compiler to an officially supported one made no difference.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/195469?ContentTypeID=1Sun, 30 Jun 2019 07:01:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2cb11dc4-7fdf-4dfa-b587-08fc94794fd7Vish<p>What version are you on ? Try the v0.4.0 version first. The latest on master has this issue.</p><div style="clear:both;"></div>