https://devzone.nordicsemi.com/f/nordic-q-a/85164/code-not-flash-in-nrf5340pdkWe have nrf5340pdk kit we are trying to flash code via nrf connect or Segger studio but firmware is not flash and when we powered up the pdk it&#39;s showing three port can you suggest any suggestion !! Thank you, Regard , Brijesh Vaghasiyaen-USTelligent Community 13Fri, 25 Feb 2022 12:59:51 GMThttps://devzone.nordicsemi.com/thread/355030?ContentTypeID=1Fri, 25 Feb 2022 12:59:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c39918ba-4042-47d9-b6c1-6fbb5d65c847Marte Myrvold<p>Hi,</p> <p>But what is the version of the SDK that you are using? The latest version of nRF Connect SDK is v1.9.0, but you must use v1.4.2 or earlier with the PDK.</p> <p>Also, how did you install the SDK, and what application are you trying to program the PDK with? Can you also explain how you are building and programming the application?</p> <p>Best regards,</p> <p>Marte</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/355020?ContentTypeID=1Fri, 25 Feb 2022 12:30:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4e27c358-909d-4a8d-b0ed-e6b54f11110fBrijesh Vaghasiya<p>In nrf connect programmer using version is 2.3.3 and what about port issue</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/355012?ContentTypeID=1Fri, 25 Feb 2022 12:12:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:edd3dcb3-3c9f-4917-846f-6d90ec24f272Marte Myrvold<p>Hi,</p> <p>What version of nRF Connect SDK are you using? The nRF5340 PDK became deprecated in v1.5.0,&nbsp;and the latest supported version on the PDK is v1.4.2.&nbsp;</p> <p>Best regards,</p> <p>Marte</p><div style="clear:both;"></div>