https://devzone.nordicsemi.com/f/nordic-q-a/86348/newbie-question-nrf52840-dkHi Guys, I am following the numbers and tutorials and setting up Visual Studio on a windows PC and installing the Nordic extensions. I get as far as a successful build but I am unable to flash the build to the DK. [Blinky demo app] I get the followingen-USTelligent Community 13Tue, 29 Mar 2022 22:05:17 GMThttps://devzone.nordicsemi.com/thread/360625?ContentTypeID=1Tue, 29 Mar 2022 22:05:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fb31c649-92a5-405a-af21-5d9fa63fdce2TDrew<p>Thanks Amanda, I will review link, it may take me little while. Thanks for the quick response</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/360436?ContentTypeID=1Tue, 29 Mar 2022 07:16:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:25aa9033-36b4-4d6b-9848-6a7195e576cdAmanda Hsieh<p>Hi,&nbsp;</p> <p><span>This is the new feature of APPROTECT in the nRF52840 Rev3. It needs to&nbsp;recover to unlock the device before flashing.&nbsp;</span>See&nbsp;<a href="https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/working-with-the-nrf52-series-improved-approtect">Working with the nRF52 Series&#39; improved APPROTECT</a>&nbsp;</p> <p><span>-Amanda&nbsp;</span></p> <p><span></span></p><div style="clear:both;"></div>