https://devzone.nordicsemi.com/f/nordic-q-a/12892/dfu-with-hci-uart-to-apply-embedded-linux-systemHi, I can use nRFgo Studio via nRF5x Bootloader to update application firmware(Hex file). It look to be using &quot;nrfutil.exe&quot; to create a XXX.zip file and go through UART to update application firmware. If I want using like to the &quot;nrfutil.exeen-USTelligent Community 13Wed, 06 Apr 2016 11:42:48 GMThttps://devzone.nordicsemi.com/thread/49086?ContentTypeID=1Wed, 06 Apr 2016 11:42:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:112c2fb8-b510-4925-9ca8-15122598d5e6Ryan Huang<p>Hi Hung Bui, Thanks for your reply! May you develop a C sample code about Serial (HCI) packet format ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/49085?ContentTypeID=1Wed, 06 Apr 2016 09:27:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2dc58003-5bbd-4cfd-ac52-5d211793794cHung Bui<p>I&#39;m afraid we don&#39;t. You may want to base on what we have in Python and port that to C.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/49087?ContentTypeID=1Wed, 06 Apr 2016 02:15:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:50517d8b-f876-4de5-a295-32a3c6003c0fRyan Huang<p>Hi Hung Bui, Thanks for your reply!</p> <p>The nrfutil source is a Python package. Do you have the C source or example to develop the DFU client use serial (HCI) transport to send Device Firmware Updates?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/49084?ContentTypeID=1Fri, 01 Apr 2016 11:32:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2238a040-f2d2-4560-88ee-9cc93dda72a6Hung Bui<p>@Ryan: We provided <a href="https://github.com/NordicSemiconductor/pc-nrfutil">github.com/.../pc-nrfutil</a> nrfutil source. I haven&#39;t tried myself to compile it on Linux but there are many customers already did.</p><div style="clear:both;"></div>