https://devzone.nordicsemi.com/f/nordic-q-a/67694/jlink-link-to-nrf52832-errwhen i use jlink tool link to nrf52832 board,it is err like this picture,i do not no whyen-USTelligent Community 13Wed, 28 Oct 2020 02:28:52 GMThttps://devzone.nordicsemi.com/thread/277271?ContentTypeID=1Wed, 28 Oct 2020 02:28:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b61c4abc-a506-46d1-a230-84ce77c35512Henry_Chou<p>The J-Link firmware is quit strange, is&#39;nt it? The FW from your first picture is V9 2222/22/22?</p> <p>I think you may update FW, and try again.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/277269?ContentTypeID=1Wed, 28 Oct 2020 02:25:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1030ade5-f901-462c-8e44-fc6431e1bdb2zjk<p>i use it to download ok before,Suddenly unable to download，and cannot recovery.</p> <p>i can use this jlink to download other board ok.</p> <p>After chip replacement，it is also ok.</p> <p>Recently, there are many boards in the use of this phenomenon.</p> <p>it is may jlink info,and i get by nrfjprog</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/pastedimage1603851825241v1.png" alt=" " /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/277265?ContentTypeID=1Wed, 28 Oct 2020 01:17:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:10f49392-034a-4365-aded-b90de5639ce9Henry_Chou<p>Your link mode seems like is JTAG mode. It&#39;s not the SW mode. So that the interface pin is more than SW mode. May you check the hardware connection of J-link EDU?</p><div style="clear:both;"></div>