https://devzone.nordicsemi.com/f/nordic-q-a/47528/is-there-an-image-compression-option-for-dfuI try to DFU operation. SDK15.3.0 / GCC / nrf52840 My application image size is 123,484bytes (nrf52module.bin) I run command , nrfutil.exe pkg generate --hw-version 52 --sd-req 0xB6 --application nrf52module.bin --application-version 1 --key-fileen-USTelligent Community 13Thu, 23 May 2019 07:53:11 GMThttps://devzone.nordicsemi.com/thread/188716?ContentTypeID=1Thu, 23 May 2019 07:53:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:99ede40f-783e-4153-b280-5bbadd3d97d5loquat<p>Oh, <span class="tlid-translation translation" lang="en"><span title="">It is a pity</span></span>.</p> <p>Thank you.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/188152?ContentTypeID=1Tue, 21 May 2019 08:57:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fbf743e3-a92c-4b04-a21a-54b18bc0c17dVidar Berg<p>Hi,</p> <p>We do not have support for image compression in our current bootloader, unfortunately.&nbsp;You may want to evaluate third-party compression libraries such as this one:&nbsp;<a href="https://github.com/korczis/ucl">https://github.com/korczis/ucl</a>&nbsp;if you&#39;re going to implement it yourself.&nbsp;&nbsp;</p><div style="clear:both;"></div>