https://devzone.nordicsemi.com/f/nordic-q-a/125475/nrf9151-compatible-external-flashHello, Is it possible to get some examples of external flash memories that are compatible with nRF9151 and Zephyr OTA functions? Kind regards Paulineen-USTelligent Community 13Fri, 07 Nov 2025 13:12:33 GMThttps://devzone.nordicsemi.com/thread/553676?ContentTypeID=1Fri, 07 Nov 2025 13:12:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dc27746d-6378-4aa7-b849-a05119d0f724Simon D-M<p>Hello Pauline,</p> <p>&nbsp;</p> <p>I can&#39;t really give you a specific flash recommendation, as it depends on your specific use case and requirements.<br /> However we have some hardware design guidelines for the nRF9151 that may help you (<a id="menurhag" class="fui-Link ___1q1shib f2hkw1w f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1s184ao f1mk8lai fnbmjn9 f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh fhgqx19 f1olyrje f1p93eir f1nev41a f1h8hb77 f1lqvz6u f10aw75t fsle3fq f17ae5zn" title="https://docs.nordicsemi.com/bundle/nwp_056/page/wp/nwp_054/intro.html" href="https://docs.nordicsemi.com/bundle/nwp_056/page/WP/nwp_054/intro.html" rel="noopener noreferrer" target="_blank">https://docs.nordicsemi.com/bundle/nwp_056/page/WP/nwp_054/intro.html</a>).<br /> Here is the documentation about external flashes (<a id="menurhai" class="fui-Link ___1q1shib f2hkw1w f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1s184ao f1mk8lai fnbmjn9 f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh fhgqx19 f1olyrje f1p93eir f1nev41a f1h8hb77 f1lqvz6u f10aw75t fsle3fq f17ae5zn" title="https://docs.nordicsemi.com/bundle/nwp_056/page/wp/nwp_054/flash.html" href="https://docs.nordicsemi.com/bundle/nwp_056/page/WP/nwp_054/flash.html" rel="noopener noreferrer" target="_blank">https://docs.nordicsemi.com/bundle/nwp_056/page/WP/nwp_054/flash.html</a>).</p> <p>&nbsp;</p> <p>If you want to experiment using an external flash with FOTA, the nRF9151dk has one. Here is a sample that you can use to experiment on the nRF9151dk (<a id="menurhak" class="fui-Link ___1q1shib f2hkw1w f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1s184ao f1mk8lai fnbmjn9 f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh fhgqx19 f1olyrje f1p93eir f1nev41a f1h8hb77 f1lqvz6u f10aw75t fsle3fq f17ae5zn" title="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/cellular/nrf_cloud_rest_fota/readme.html" href="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/cellular/nrf_cloud_rest_fota/README.html" rel="noopener noreferrer" target="_blank">https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/cellular/nrf_cloud_rest_fota/README.&hellip;</a>).</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Simon D-M</p><div style="clear:both;"></div>