https://devzone.nordicsemi.com/f/nordic-q-a/107762/nrf52940-df-programmer-4-2-0---random-jlink-write-failHi - we have a small issue Huston ( Trondheim). We have a nRF52840 DK - connected to our Debug Module for Acconeer XM122 module. JLINK cable connects the two boards. Using nRF Connect ver 4.x and Programmer ver 4.1.0 we successfully erase memoryen-USTelligent Community 13Thu, 25 Jan 2024 17:17:39 GMThttps://devzone.nordicsemi.com/thread/466102?ContentTypeID=1Thu, 25 Jan 2024 17:17:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2d894750-cd97-4068-bd34-c0f91129137fAmanda Hsieh<p>Hi,&nbsp;</p> <p>Could you install the latest version of the <a href="https://www.nordicsemi.com/Products/Development-tools/nRF-Command-Line-Tools/Download?lang=en#infotabs">nRF Command Line Tools</a> to try again? Run &quot;<span>nrfjprog --recover&quot; before programming.&nbsp;</span>If it still fails, please provide the log with &quot;<span>nrfjprog --recover --log</span>&quot;</p> <p>Regards,<br />Amanda H.</p><div style="clear:both;"></div>