https://devzone.nordicsemi.com/f/nordic-q-a/63280/not-able-to-erase-deviceI flashed two nrf52832 with a black magic probe. Unfortunately after reconnecting the USB, I wasn&#39;t able to flash them anymore. So, I tried the nrfjprog command line program in order to fix it. Luckily the device is still there, kind of. I tried eraseen-USTelligent Community 13Fri, 03 Jul 2020 08:52:44 GMThttps://devzone.nordicsemi.com/thread/258254?ContentTypeID=1Fri, 03 Jul 2020 08:52:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:90011ba4-7ad1-492f-830b-9a75a2795e21Mttrinh<p>Hi,</p> <p>Are you using a custom board or a DK?</p> <p>Have tried using a different USB cable?</p> <p><span>How have you connected the debugger to the chip? </span></p> <p><span>This issue usually is due to a faulty connection, wrong voltage, some mistake on the custom board etc. Could you re-check that everything is connected and powered correctly?</span></p><div style="clear:both;"></div>