https://devzone.nordicsemi.com/f/nordic-q-a/85060/how-to-use-minimum-ramHello I need more flash and ram so I change the sdk to 13.1, but when I enabled the softdevice the log advice me use more ram. How can I use little ram as s132_nrf52_4.0.2_release-notes.pdf say? Thanksen-USTelligent Community 13Wed, 23 Feb 2022 09:53:52 GMThttps://devzone.nordicsemi.com/thread/354507?ContentTypeID=1Wed, 23 Feb 2022 09:53:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6243d42e-dbed-44bd-9507-b41e6db4e213Amanda Hsieh<p>Hi,&nbsp;</p> <p><span>If you&#39;ve added quite a few services or&nbsp;concurrent connections to your application, which all will use some RAM in the SoftDevice. You can take a look at&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/22386/how-to-reduce-the-ram-requirement-of-the-softdevice">this case</a>, where a few ways to reduce the SoftDevices RAM usage has been suggested.</span></p> <p><span></span><span>You also could turn off the features in the sdk_config.h if they are not used in the project.&nbsp;</span></p> <p><span>Regards,<br />Amanda</span></p><div style="clear:both;"></div>