https://devzone.nordicsemi.com/f/nordic-q-a/25915/nrf52832-jlink-ob-debug-on-keil-and-segger-embedded-studio-3-28I use another jlink ob board to connect to nrf52832, and when i use j-link v6.16c，it give a warning prompt &quot;The connected j-link is defective&quot;, and i use jlink v5.12f, when i use keil to download hex file to board, and a pop-up dialog box appears &quot;Theen-USTelligent Community 13Fri, 13 Oct 2017 08:28:29 GMThttps://devzone.nordicsemi.com/thread/102073?ContentTypeID=1Fri, 13 Oct 2017 08:28:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2f9450fe-68ff-445e-b24c-e5882d25cd65Sigurd<p>Hi,</p> <p>What kind of board is this &quot;<em>another jlink ob board</em>&quot; ? Is it a nRF52-DK ? Please try to update your J-link driver and see if that solves the problem. You can download the latest version <a href="https://www.segger.com/downloads/jlink/#J-LinkSoftwareAndDocumentationPack">here</a>.</p> <p>EDIT: Solved <a href="https://devzone.nordicsemi.com/question/173034/how-to-update-j-link-ob-sam3u128-v2-nordicsemi-170724bin-on-nrf52832/?comment=173111#comment-173111">here</a>.</p><div style="clear:both;"></div>