https://devzone.nordicsemi.com/f/nordic-q-a/21635/nrf52-as-a-dfu-centralI can update firmware in my nRF52 nodes using DFU where on the other end I have Android phone or nRF Connect (PC/Windows)+PCA10040. Everything works fine. But in my application I want to use nRF52 based node (&quot;central&quot; in my system) to update other nRF52en-USTelligent Community 13Sun, 24 Feb 2019 17:23:23 GMThttps://devzone.nordicsemi.com/thread/172648?ContentTypeID=1Sun, 24 Feb 2019 17:23:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4d6db843-0295-436e-8ae2-fed0998765e2lybrus<p><span>Hi Witold!</span></p> <p><span>Did you manage to implement DFU Controller? Could you share your solution? It will be great!</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/84931?ContentTypeID=1Wed, 26 Apr 2017 10:35:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ca64377a-4f83-46ae-9255-e60674c4def1bjorn-spockeli<p>Hi Witold,</p> <p>unfortunately we do not have any examples/guides showing how to implement a DFU Controller(Master) on a nRF52 device. We only have examples showing how the DFU Target (Slave) is implemented, i.e. the bootloader examples in the SDK.</p> <p>However, the DFU Service and the Device Firmware Update procedure is documented on our Infocenter, here is the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v13.0.0/lib_dfu_transport_ble.html?cp=4_0_0_3_4_2_2">link</a>, so it should be to large an effort to implement this.</p> <p>I recommend starting with one of our central examples, e.g. examples\ble_central\ble_app_hrs_c and use it as a template.</p> <p>There is a DevZone user has implemented a DFU Controller for the legacy bootloader on the nRF51 and is now in the process of implementing a Secure DFU controller on the nRF52, <a href="https://devzone.nordicsemi.com/question/129714/secure-dfu-from-s130s132/">here</a> is the link to the DevZone post.</p> <p>Best regards</p> <p>Bjørn</p><div style="clear:both;"></div>