https://devzone.nordicsemi.com/f/nordic-q-a/57086/led3-doesn-t-blink-after-erase-all-with-sesHello all, LED3 from nRF9160 DK doesn&#39;t blink after I erase all with SES. what I&#39;ve done so far: Update successfully the modem to 1.1.0 Load the applikation &#39;nRF9160_DK_board_controller_FW.hex&#39; to the nRF91 But LED3 still doesn&#39;t blinken-USTelligent Community 13Wed, 29 Jan 2020 11:53:57 GMThttps://devzone.nordicsemi.com/thread/231621?ContentTypeID=1Wed, 29 Jan 2020 11:53:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7999970a-c5f6-4b6f-971a-2d24e9ca8f0fAmanda Hsieh<p>Hi,&nbsp;</p> <p></p> <p><span>Board controller firmware is for nrf52840. Which controls analogue switch that routes&nbsp;nRF9160&nbsp;gpio to LEDs and Buttons and other peripheral.&nbsp;</span></p> <p><span>You should load <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/0.3.0/nrf/samples/nrf9160/asset_tracker/README.html">asset_tracker</a> sample application to nRF9160 which was preconfigured.&nbsp;</span>Go to the&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/getting_started.html" rel="noopener noreferrer" target="_blank">Getting started section</a><span>&nbsp;</span>in the nRF Connect SDK documentation and&nbsp;check the&nbsp;<span><a href="https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/getting-started-with-nrf9160-dk">Getting started with nRF9160 DK</a>&nbsp;how to program&nbsp;</span>Asset Tracker Application.&nbsp;</p> <p>Please also see this <a href="https://devzone.nordicsemi.com/f/nordic-q-a/41808/nrf9160-sdk---pca10090-v0-7-0/162897#162897">post</a>.&nbsp;</p> <p>-Amanda H.</p><div style="clear:both;"></div>