https://devzone.nordicsemi.com/f/nordic-q-a/96021/connection-problem-with-j-linkHello, I&#180;m working with the Nordic board nRF52832, and connecting the board with a Segger J-link to be able to connect it with the computer. At first, we use the &quot;nRF connect for Desktop&quot;, but the program only detect the board via usb (not withen-USTelligent Community 13Wed, 25 Jan 2023 11:51:48 GMThttps://devzone.nordicsemi.com/thread/406438?ContentTypeID=1Wed, 25 Jan 2023 11:51:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1c2fa48b-9a54-463e-bde1-b194ccf38e31Vidar Berg<p>Hello,</p> <p>The PCB footprint you highlighted is to re-program the on-board J-link chip with a tag connect cable. If you want to program the nRF on the DK with an external J-link programmer, then you need to use the 9-pin&nbsp;<a title="Debug input " href="https://infocenter.nordicsemi.com/topic/ug_nrf52832_dk/UG/dk/hw_debug_in_trace.html?cp=4_2_4_3_6">Debug input</a>&nbsp;port.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/406385?ContentTypeID=1Wed, 25 Jan 2023 08:15:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f5f3baaf-0dab-41f8-adc6-692c9676ff83Turbo J<p>Download the &quot;Interface MCU firmware&quot;, then press reset button while powering on the board. This starts the bootloader for the <em>debug interface</em> MCU and and allows flashing the firmware, IIRC by just copying the file onto it.</p> <p>Using this bootloader w/o flashing kind of bricks the board until you re-flash the interface firmware again.</p><div style="clear:both;"></div>