https://devzone.nordicsemi.com/f/nordic-q-a/116442/how-to-enable-pm-managment-at-nrf5340software:ncs 2.5.0 hardware:nrf5340 dk hi professor, According to the article at https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/optimizing-power-on-nrf53-designs?CommentId=ae95c50b-10df-43ad-938f-ac5b9f33677a , I have already addeden-USTelligent Community 13Mon, 18 Nov 2024 13:51:11 GMThttps://devzone.nordicsemi.com/thread/510903?ContentTypeID=1Mon, 18 Nov 2024 13:51:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d37aea5e-26c5-41a5-b0cf-eda0ad7c0f6fSwRa<p>Hello,</p> <p><span>F</span>or SDK 2.5.0 and later, you should use `sys_poweroff()` instead of `pm_state_force()` to enter the lowest power state (system off mode). Also, make sure to add the following configurations in the prj.conf:</p> <p><span>CONFIG_PM=y<br /> CONFIG_PM_DEVICE=y<br /> CONFIG_POWEROFF=y</span></p> <p><span>This has been discussed in this thread:&nbsp;&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/105369/undefined-reference-to-pm_state_force-on-windows-works-fine-on-linux">Undefined reference to pm_state_force on Windows, works fine on Linux</a>&nbsp;&nbsp;</span></p> <p>Best Regards,</p> <p>Swathy</p><div style="clear:both;"></div>