https://devzone.nordicsemi.com/f/nordic-q-a/103922/nrf5340-programming-issuesHi， I&#39;m going to make a programming tool.I am using NRF5340DK to debug, I found that when writing client files, restart the device, only to use JFlash to erase. If keil is used to erase the device, the NRF5340 will run. Or the erase function is writtenen-USTelligent Community 13Tue, 19 Sep 2023 14:09:27 GMThttps://devzone.nordicsemi.com/thread/446692?ContentTypeID=1Tue, 19 Sep 2023 14:09:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:15107f88-8fe6-491d-8e79-12493481c3b8Sigurd<p>Hi!<br /><br />We don&#39;t have any Keil support for the nRF5340 in our SDK.</p> <p>To program the device, I suggest using nrfjprog command line tool, or if you want a GUI tool, use nRF Connect for Desktop programmer app.&nbsp;<br /><br />If you are doing production programming, we have a white paper on that here:&nbsp;<a href="https://infocenter.nordicsemi.com/topic/nan_042/APP/nan_production_programming/intro.html">https://infocenter.nordicsemi.com/topic/nan_042/APP/nan_production_programming/intro.html</a></p><div style="clear:both;"></div>