https://devzone.nordicsemi.com/f/nordic-q-a/71692/i-couldn-t-update-the-firmware-when-ppk-is-connected-to-the-nrf52hi there, I have a problem with updating the firmware when the PPK is attached to the nRF52 DK. I could upload a new version of firmware on the nrf52, but it loads the previous one. I don&#39;t know what&#39;s the problem? When I remove the PPK from nrf52en-USTelligent Community 13Wed, 17 Feb 2021 11:15:30 GMThttps://devzone.nordicsemi.com/thread/294806?ContentTypeID=1Wed, 17 Feb 2021 11:15:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:96d56c03-111e-4746-9d33-0142b9da285fJosef80<p>thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/294802?ContentTypeID=1Wed, 17 Feb 2021 11:04:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:03a9c687-c09e-4583-8d74-5da22c1c41fcSimonr<p>Hi</p> <p>No, the PPK must be removed in order to edit the firmware on the nRF52 SoC on the DK, as the debugger chip is communicating with the SoC on the PPK when the PPK is connected to the DK.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>