https://devzone.nordicsemi.com/f/nordic-q-a/25927/dfu-init-file-structureHello, is there any documentation about DFU init file structure (SDK 14.0)? I used NRF util for creating DFU package, but i want to create my own app for that purpose.en-USTelligent Community 13Tue, 24 Oct 2017 10:57:54 GMThttps://devzone.nordicsemi.com/thread/102122?ContentTypeID=1Tue, 24 Oct 2017 10:57:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e1c9e664-8c39-47d6-af5f-20a69181eb0abjorn-spockeli<p>Happy to help :) I would appreciate if you could mark the answer as correct/accepted by clicking the check mark in the grey circle to the left of the answer.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/102121?ContentTypeID=1Tue, 24 Oct 2017 10:51:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:16d87664-3bed-423e-8746-aca11a3ce0f0Alexandar<p>Thank you.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/102120?ContentTypeID=1Mon, 16 Oct 2017 13:14:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f10f28da-d722-4536-a74e-538e8a6a9a30bjorn-spockeli<p>Hi Alexander,</p> <p>The Init packet structure is defined by a Protocol Buffer (.proto) file, found under nordicsemi/dfu/dfu-cc.proto in the nrfutil folder.</p> <p>There is a guide on how to customize the init packet in the nrfutil documentation, see <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.tools/dita/tools/nrfutil/nrfutil_customizing.html?cp=5_5_8">this</a> Infocenter page.</p><div style="clear:both;"></div>