https://devzone.nordicsemi.com/f/nordic-q-a/77509/how-to-recover-a-custom-nrf52840-board-after-a-full-erase-including-uicr-and-power-offHi, I made a mistake while working with a custom board. I run &quot;nrfjprog --recover&quot;, which obviously clears UICR, and then I powered the board off without writing the new firmware. On the board, I have SWD exposed (SWD-IO and SWD-CLK pins) but whenen-USTelligent Community 13Thu, 15 Jul 2021 11:37:08 GMThttps://devzone.nordicsemi.com/thread/320231?ContentTypeID=1Thu, 15 Jul 2021 11:37:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c625615d-c418-4e47-90a8-3dac8226be44Stian R&#248;ed Hafskjold<p>You should be able to just flash a new FW using nrfjprog --program hexfile.hex, since you were already able to erase the chip using nrfjprog --recover. You only need the SWDIO and SWDCLK pins for this to work. Or you can use nRF Connect for desktop as <a href="https://devzone.nordicsemi.com/members/sunil-vignesh">Sunil vignesh</a> suggested.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/320136?ContentTypeID=1Thu, 15 Jul 2021 03:43:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a4bd6893-8438-4b4a-807c-d557752e5424Sunil vignesh<p>Hi,</p> <p>Do you have nRF Connect for desktop .</p> <p>If have you can visualize the board is in live or not and also you can able to program the hex files from there</p> <p><a href="https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-desktop">https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-desktop</a></p><div style="clear:both;"></div>