https://devzone.nordicsemi.com/f/nordic-q-a/99700/optimize-spi-sd-card-power-consumptionHi I trying to optimize the current consumption on a nRF9160 based custom board. I can not get the current lower than 186uA with a small card. The baseline when turning off power to the &quot;SPI - domain&quot; is 4.7uA. But then I&#39;m not able to get the SD Carden-USTelligent Community 13Tue, 16 May 2023 14:59:24 GMThttps://devzone.nordicsemi.com/thread/425942?ContentTypeID=1Tue, 16 May 2023 14:59:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e66a6bc2-853c-4b63-848d-9ada802e0ac9Bard<p>Hi Kazi</p> <p>&nbsp;The current consumption is now at 4-5uA and the sd card function perfect after reapplying power.</p> <p>However, this is a hacky way to solve it, so if anyone has an alternative it would be nice to know. I think this should be solved in Zephyr.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/425890?ContentTypeID=1Tue, 16 May 2023 13:47:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a8c8aa0f-84e0-4825-a820-ba5c3cc4dc39Kazi Afroza Sultana<p>Hello,</p> <p>Here is a previous case regarding eject problem you can look at&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/96911/unable-to-remount-sd-card-after-physically-ejecting-without-rebooting">(+) Unable to remount SD-Card after physically ejecting without rebooting - Nordic Q&amp;A - Nordic DevZone - Nordic DevZone (nordicsemi.com)</a>.</p> <p>Thanks.</p> <p>BR</p> <p>Kazi</p><div style="clear:both;"></div>