https://devzone.nordicsemi.com/f/nordic-q-a/57272/can-t-update-certification-on-the-devicei&#39;ve been trying to update certification on the device (fallowed the guide https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/nrf-cloud-certificate-update ) and any commend i&#39;m asking on the termination, i geten-USTelligent Community 13Mon, 03 Feb 2020 09:07:33 GMThttps://devzone.nordicsemi.com/thread/232259?ContentTypeID=1Mon, 03 Feb 2020 09:07:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b48fd9d3-509f-414e-bfe8-a61ff745bc79Didrik Rokhaug<p>Hi.</p> <p>What application firmware do you have on the nRF91?</p> <p>Does it support large AT commands (&gt;3KB)?</p> <p>The commands might be listed as &quot;timed out&quot; in the Link Monitor even though they succeded because the modem took too long to respond. If you look at the &quot;terminal window&quot;, does the nRF91 answer the commands with &quot;OK&quot;?</p> <p>Best regards,</p> <p>Didrik</p><div style="clear:both;"></div>