https://devzone.nordicsemi.com/f/nordic-q-a/82714/programming-external-nrf5340-using-nrf5340-dkHi, I&#39;m trying to download hex file to our custom development board which has an nRF5340 on it using the external JLINK on the nRF5340 dev kit. I&#39;m using nrfjprog: nrfjprog version: 10.15.1 external JLinkARM.dll version: 6.88a and I am getting theen-USTelligent Community 13Wed, 15 Dec 2021 07:36:32 GMThttps://devzone.nordicsemi.com/thread/343544?ContentTypeID=1Wed, 15 Dec 2021 07:36:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8bec58a4-0036-4b59-b08e-a1c034f54271RadekK<p>Ok, thank you.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/343260?ContentTypeID=1Mon, 13 Dec 2021 16:24:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7d79a492-c66c-4685-a260-778431ffc9c4Kenneth<p>As part of the nrf command line tools installation the j-link software should also be updated,e.g. a snippet from installation:<br /><img src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/8078.pastedimage1639412664263v1.png" alt=" " /></p> <p>You can find v7.58b installed, maybe try to install nrf command line tools again?<br /><a href="https://www.nordicsemi.com/Products/Development-tools/nrf-command-line-tools/download">https://www.nordicsemi.com/Products/Development-tools/nrf-command-line-tools/download</a>&nbsp;</p> <p>Kenneth</p><div style="clear:both;"></div>