https://devzone.nordicsemi.com/f/nordic-q-a/89783/nrf9160-power-onHello Nordic support: We encountered a problem when downlaod the firmware for the nRF9160 with jlink nrfjprog program. Most our nRF9160 module can download firmware OK just after power on and reset nRF9160. But some nrf9160 need to wait about 6s foren-USTelligent Community 13Tue, 12 Jul 2022 13:01:09 GMThttps://devzone.nordicsemi.com/thread/376618?ContentTypeID=1Tue, 12 Jul 2022 13:01:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:264a8ddb-2f6c-4b09-8614-0dfe853c9479Kaja<p>Hi,<br /><br />the risk is that Enable is low, while VDD_GPIO is high, and this is a state we don&#39;t support. Then it&#39;s out of spec.. are you able to alter this in you&nbsp;software design.<br /><br />Best regards,<br />Kaja<br /><br /><br /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/376352?ContentTypeID=1Mon, 11 Jul 2022 08:21:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5af4a272-a191-4bdc-b91e-f62cadc9bb20RongLinQin<p>Hi Kaja:</p> <p>&nbsp; &nbsp; &nbsp;<span>Yes, that might cause problem.</span></p> <p>&nbsp; &nbsp; &nbsp; ==&gt; Could you share us more detailed information.&nbsp;</p> <p>&nbsp; &nbsp; &nbsp; Thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/376319?ContentTypeID=1Mon, 11 Jul 2022 06:17:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d2977d37-f68c-4d26-a34e-a8d83cdeef36Kaja<p>Yes, that might cause problem.<br /><br />Best regards,<br />Kaja</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/376307?ContentTypeID=1Mon, 11 Jul 2022 01:59:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e4591f51-0d57-425a-9355-eb92022bcc96RongLinQin<p>Hi Kaja:</p> <p>&nbsp; &nbsp; &nbsp; &nbsp;Thanks for your support!</p> <p>&nbsp; &nbsp; &nbsp; &nbsp;<span>&nbsp;Is there problem&nbsp; with&nbsp;&quot;ENABLE&quot; and &quot;VDD_GPIO&quot; turned high simultaneously?</span></p> <p><span>BRs</span></p> <p><span>Qin,Rong-Lin</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/376214?ContentTypeID=1Fri, 08 Jul 2022 12:35:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1ddfc2fd-240a-4f4e-80d8-7635617e1f4aKaja<p>Hi,</p> <p>Enable should turned high before VDD_GPIO.<br /><br />Also see:&nbsp;<a href="https://infocenter.nordicsemi.com/topic/ps_nrf9160/recommended_op_conditions.html?cp=2_0_0_10_0#vdd_gpio_considerations">VDD_GPIO considerations</a></p> <p></p> <p>Best regards,<br />Kaja</p><div style="clear:both;"></div>