https://devzone.nordicsemi.com/f/nordic-q-a/91437/revert-firmware-on-nrf52840-dkIn an attempt to standardize development across all developers, we&#39;d like all devices to be running the same firmware and would like the flexibility to revert and upgrade. Is it possible to revert the firmware on the nRF52840 DK boards? I see the optionen-USTelligent Community 13Tue, 30 Aug 2022 11:55:50 GMThttps://devzone.nordicsemi.com/thread/383891?ContentTypeID=1Tue, 30 Aug 2022 11:55:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cad8a38d-5457-4479-a4f4-0e0bdf767e47Simonr<p>Hi</p> <p><a href="https://www.nordicsemi.com/Products/Development-hardware/nRF52840-DK/Download?lang=en#infotabs">As of revision 3.0.0 of the nRF52840 DK</a> we switched out the interface MCU from J-Link with one of our nRF5340 SoCs, so since the interface MCU is not the same on these boards, neither is the firmware I&#39;m afraid. If all of the DKs are the same revision, this should be possible though.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>