I want to update bootloader with ble DFU, how can I do it? how do I use nrfutil to make zip file? I am using nrf52833 and SDK17.0.2https://devzone.nordicsemi.com/f/nordic-q-a/75753/i-want-to-update-bootloader-with-ble-dfu-how-can-i-do-it-how-do-i-use-nrfutil-to-make-zip-file-i-am-using-nrf52833-and-sdk17-0-2Hi， I use nrfutil like this : nrfutil pkg generate --bootloader bootloader.hex --bootloader-version 1 --hw-version 52 --sd-req 0x0100 --key-file priv.pem bootloader.zip, Is it OK?en-USTelligent Community 13Mon, 31 May 2021 06:53:10 GMTRE: I want to update bootloader with ble DFU, how can I do it? how do I use nrfutil to make zip file? I am using nrf52833 and SDK17.0.2https://devzone.nordicsemi.com/thread/312533?ContentTypeID=1Mon, 31 May 2021 06:53:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:10e20099-2fe6-408b-8961-73f2310253e0Simonr<p>Hi</p> <p>This seems to be okay, but please refer to the <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrfutil%2FUG%2Fnrfutil%2Fnrfutil_intro.html">nRF Util user guide</a> when trying to generate packages.</p> <p>Do you have any trouble with the nrfutil call? If so, please provide some details on that and I&#39;ll help you&nbsp;to the best of my abilities.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>