https://devzone.nordicsemi.com/f/nordic-q-a/28951/can-dfu-unsecured-zip-back-to-hexHi, I have a DFU unsecured zip file(for application), and I lost the original application .hex file. Is there any way I can transform .zip back to .hex? Sincerely, Frogofmagicen-USTelligent Community 13Thu, 04 Jan 2018 09:17:22 GMThttps://devzone.nordicsemi.com/thread/114538?ContentTypeID=1Thu, 04 Jan 2018 09:17:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:56811e8a-09fd-426a-b2cf-ed7cdfff3172frogofmagic<p>Hi Shibshab, really really appreciate your answer !!!!</p> <p>And this how I success :</p> <ol> <li> <p>Download bintohex tool <a href="http://www.keil.com/support/docs/275.htm">hear</a>.</p> </li> <li> <p>unzip DFU .zip and get .bin file.</p> </li> <li> <p>Use this command</p> </li> </ol> <p>srec_cat.exe DFUzip.bin -Binary -offset 0x1B000 -o Output.hex -Intel -address-length=3 -Output_Block_Size=16</p> <p>0x1B000 is my application IROM1 start address.</p> <p>I tried program .hex to my module and it works!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/114537?ContentTypeID=1Thu, 04 Jan 2018 07:49:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:94491664-e8a1-43d7-a491-49a50742904fshibshab<p>What version of the is being used?</p> <p>Anyway, inside the zip there should be a .bin file. This contains all info that a .hex file would contain, EXCEPT addresses of the data. Therefore, you can usually use a bin file instead of a hex file in most tools, given that you provide the address as well.</p> <p>It seems like you can use <a href="https://github.com/noahp/bin2hex">this tool</a> (not tested) to do the convertion from bin to hex.</p><div style="clear:both;"></div>