https://test-devzone.nordicsemi.com/f/nordic-q-a/88111/serial-lte-modem-app-in-ncs-main---too-long-to-wakeupNCS main, nRF9160 DK, PPK2 git log -n 1 --oneline 4f916da03 (HEAD -&gt; main, origin/main, origin/HEAD) west.yml: rebase OSS trees SLM prj.conf changes: CONFIG_SLM_START_SLEEP=y CONFIG_SLM_WAKEUP_PIN=6 CONFIG_SLM_INDICATE_PIN=2 CONFIG_NRF_MODEM_LIB_TRACE_ENABLEDen-USTelligent Community 13 Non-ProductionMon, 23 May 2022 15:48:01 GMThttps://test-devzone.nordicsemi.com/thread/369099?ContentTypeID=1Mon, 23 May 2022 15:48:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9fa55e5e-ae5b-41de-be3f-a1caa3114268user7170<p>Hello,</p> <p>with this setup&nbsp;<a href="https://docs.google.com/document/d/1HuWBlC9k0IS1NcfX7aGUEJqAxwaqZV2D8SHFDCM0CXs/edit?usp=sharing">https://docs.google.com/document/d/1HuWBlC9k0IS1NcfX7aGUEJqAxwaqZV2D8SHFDCM0CXs/edit?usp=sharing</a>&nbsp;(no floating pins)&nbsp;and without trace it takes SLM still ~1.3 to start transmit Ready after WAKEUP.</p> <p>It looks like there is not any relation to floating pins.</p> <p>Why do you suppose there should be any ?</p> <p><img alt=" " src="https://test-devzone.nordicsemi.com/resized-image/__size/1000x240/__key/communityserver-discussions-components-files/4/wakeup.png" /></p> <p>Regards,<br />Michal</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/369086?ContentTypeID=1Mon, 23 May 2022 14:39:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a7781673-4087-4cca-ad5b-ef03fb8d788duser73166<p>Hello,</p> <p>this seems to be related to the same issue as <a href="https://test-devzone.nordicsemi.com/f/nordic-q-a/88110/serial-lte-modem-app-in-ncs-main---glitch-on-tx-after-reset">here</a>. Can you confirm this? It looks like it is just caused by floating IO pins.</p><div style="clear:both;"></div>