https://devzone.nordicsemi.com/f/nordic-q-a/89251/add-ota-dfu-capability-to-open-bootloaderHi, I am working on the nrf52840 dongle using the softdevice. I would like to know whether it is possible to add OTA DFU capability to the default open bootloader that allows to program the dongle through nrf programmer. Thanks for your help.en-USTelligent Community 13Thu, 23 Jun 2022 12:48:15 GMThttps://devzone.nordicsemi.com/thread/373947?ContentTypeID=1Thu, 23 Jun 2022 12:48:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f7c0cfe7-d11c-45e1-930f-a2ec4d110c29Vidar Berg<p>Hello,</p> <p>You can re-program the dongle with an OTA or OTA+Serial bootloader, but this can only be done with an external programmer as the pre-programmed bootloader only accepts signed bootloader updates. Please refer the tutorial here for more details: &nbsp;<a href="https://devzone.nordicsemi.com/guides/short-range-guides/b/getting-started/posts/nrf52840-dongle-programming-tutorial">nRF52840 Dongle Programming Tutorial</a></p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>