https://devzone.nordicsemi.com/f/nordic-q-a/81452/programing-in-keil-nrf52840-with-st--link-v2HI I am Programming in Keil IDE and I am using ST link v2 like debugger, but in Keil shows this problem &quot;internal command error&quot; what is the problem? I was thinking the problem is the bootloader , I have no idea thanks and regardsen-USTelligent Community 13Fri, 05 Nov 2021 22:41:01 GMThttps://devzone.nordicsemi.com/thread/337771?ContentTypeID=1Fri, 05 Nov 2021 22:41:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4a614967-7cc4-41b1-89e8-bc1896ceb423Marcos Tadeo<p>Hi</p> <p></p> <p>here is the solution :</p> <p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/71517/softdevice-flash-error-with-keil-using-st-link-v2">devzone.nordicsemi.com/.../softdevice-flash-error-with-keil-using-st-link-v2</a></p> <p></p> <p>Saludos..</p><div style="clear:both;"></div>