https://devzone.nordicsemi.com/f/nordic-q-a/38650/nrf52840-ble-dfu-issueI&#39;m facing one issue while uploading firmware using BLE DFU. Details:- Hardware : NRF52840-DK SDK : v15.0.0_a53641a IDE : Segger Embedded Studio v3.40 Mobile App : nRF Toolbox v2.6.0 (Android) Example : SDK_15.0.0_a53641a\examples\dfu\secure_bootloaderen-USTelligent Community 13Wed, 19 Sep 2018 13:05:20 GMThttps://devzone.nordicsemi.com/thread/149454?ContentTypeID=1Wed, 19 Sep 2018 13:05:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:388d40cd-8ad7-47c9-8b45-5cd618da6d53Deep_Kapadia<p>Hello,<br />Thanks!!<br />Yes. I have updated public key using the above mentioned method and its working now...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/149290?ContentTypeID=1Tue, 18 Sep 2018 14:55:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ab9e5662-cf11-433a-9549-f3f23e89cae6Marjeris Romero<p>Hi,</p> <p>You have to change the dfu_public_key.c file use in the example with the public key generated with nrfutil. See <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Fble_sdk_app_dfu_bootloader.html" rel="noopener noreferrer" target="_blank">this page in the infocenter</a> to how to test the DFU bootloader example, and <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Flib_bootloader_dfu_keys.html" rel="noopener noreferrer" target="_blank">this page</a> to see how to generate private and public keys.</p> <p>Best Regards,</p> <p>Marjeris</p><div style="clear:both;"></div>