https://devzone.nordicsemi.com/f/nordic-q-a/85196/how-to-disable-configure-uart1I ran into a problem. I am unable to disable or reconfigure UART1. Any changes to the file .overlay does not give effects. I paste into the file nrf9160dk_nrf9160_ns.overlay strings &amp;uart1 { status = &quot;disabled&quot;; tx-pin = &lt; 0x8 &gt;; rx-pin = &lt; 0x9 &gt;; };en-USTelligent Community 13Sun, 27 Feb 2022 18:58:20 GMThttps://devzone.nordicsemi.com/thread/355147?ContentTypeID=1Sun, 27 Feb 2022 18:58:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ac4a8c96-1735-4ccb-be60-dffd1c030df7HEXFFFFFFFF<p>that&#39;s the problem. i&nbsp;<span>check&nbsp;build_dir/zephyr/zephyr.dts&nbsp;and everything is right there,&nbsp;but it has no effect.&nbsp;any other changes in&nbsp;zephyr.dts &nbsp;apply norm.&nbsp;<br />There is an impression that the initialization of UART1 is rigidly prescribed in the code of some module.&nbsp;And this code overlaps zephyr.dts setting.<br /></span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/355145?ContentTypeID=1Sun, 27 Feb 2022 18:35:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3a6c6880-b81f-4373-9237-ba013c29cedamytzyiay<p>When having trouble getting DT overlays to take effect, I&#39;ve found it helpful to check the combined .dts file (build_dir/zephyr/zephyr.dts in my case) to see what the final combined result looks like.&nbsp; The&nbsp;path to this file is shown when running e.g. `cd build ; cmake -GNinja -DBOARD=nrf52840dongle_nrf52840`</p><div style="clear:both;"></div>