https://devzone.nordicsemi.com/f/nordic-q-a/107717/slm-feasibilities-clarificationHi, We are working on a new project and trying use NRF9160 as SLM, but we had some challenges to get decide and finalize on this, those are: FOTA update : Can we update SLM and Radio FWs through Host Microcontroller? Secure Boot : Can we use Secureen-USTelligent Community 13Wed, 07 Feb 2024 08:56:01 GMThttps://devzone.nordicsemi.com/thread/467856?ContentTypeID=1Wed, 07 Feb 2024 08:56:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4af7f6ff-0142-4e57-9902-3bf148a951d5&#216;yvind<p>Hello,&nbsp;</p> [quote user="oys"]<blockquote><div><strong>Secure Boot</strong>:&nbsp; Can we use Secure boot for this SLM if yes please suggest any documents to understand this procedure.</div></blockquote><div></div> <p>Can you please specify?</p>[/quote] <p>Have you had any progress on this? There are at least two methods of &quot;secure boot&quot;</p> <p>1.&nbsp;<span><span dir="ltr"><a title="https://developer.nordicsemi.com/nrf_connect_sdk/doc/latest/nrf/security/security.html#security" href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/security/security.html#security" rel="noopener noreferrer" target="_blank">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/security/security.html#security</a></span></span></p> <p>2.&nbsp;<span><span dir="ltr"><a title="https://docs.nordicsemi.com/bundle/ncs-latest/page/tfm/design_docs/booting/tfm_secure_boot.html" href="https://docs.nordicsemi.com/bundle/ncs-latest/page/tfm/design_docs/booting/tfm_secure_boot.html" rel="noopener noreferrer" target="_blank">https://docs.nordicsemi.com/bundle/ncs-latest/page/tfm/design_docs/booting/tfm_secure_boot.html</a></span></span></p> <p><span><span dir="ltr">Kind regards,<br />Øyvind</span></span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/465843?ContentTypeID=1Wed, 24 Jan 2024 14:46:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a473b85d-14e4-4a0d-a6fa-df7d09dc5645&#216;yvind<p>Hello,</p> [quote user=""]<strong>FOTA update</strong>:&nbsp;Can we update SLM and Radio FWs through Host Microcontroller?&nbsp;[/quote] <p>Not by default, it must be enable<span>&nbsp;in MCUboot configuration. Have a look at my <a href="https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/main/bootloader_samples/serial_recovery">colleague Sigurd&#39;s sample here</a>&nbsp;on serial recovery.</span></p> [quote user=""]<p><strong>Secure Communication</strong>: we want use MQTTs Can you please share simple example for MQTT with security</p> <p></p> <p></p>[/quote] <p>The SLM has support TLS, e.g. <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/slm_description.html#native-tls">Native TLS</a>&nbsp;and the <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/MQTT_AT_commands.html#mqtt-connect-xmqttcon">MQTT specific AT command </a>support connecting to a secure port with username and password.</p> [quote user=""]<strong>Secure Boot</strong>:&nbsp; Can we use Secure boot for this SLM if yes please suggest any documents to understand this procedure.[/quote] <p>Can you please specify?</p> <p></p> <p>Kind regards,<br />Øyvind</p><div style="clear:both;"></div>