https://devzone.nordicsemi.com/f/nordic-q-a/26172/gebrate-dfu-a-problem-ariseshi. I want to gebrate DFU .zip packet but a problem arises For my Computer Setting OS : Windows 7 Pro 64bit Chip : nRF5283240 IDE : keil uVison V.5.17.0.0 SDK : nRF5 SDK(Version 14.0) Python : python-3.6.3 MinGW : 5.3.0 32bit Target Boarden-USTelligent Community 13Tue, 24 Oct 2017 01:26:34 GMThttps://devzone.nordicsemi.com/thread/103103?ContentTypeID=1Tue, 24 Oct 2017 01:26:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8a4fdeed-b117-4b2a-a7b5-beb45fe5af82kevin.ko<p>Okay insalled Python 2.7 and next i trying Thanks you Best regards, kevin.ko</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/103102?ContentTypeID=1Mon, 23 Oct 2017 14:12:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:442e43c0-7444-4591-bb46-1bad67a4f829Hung Bui<p>Hi Kevin,</p> <p>I assume you used the pre-build nrfutil.exe.</p> <p>The tool was built with python v2.7. Seems that you are using v3.6</p> <p>Could you install python 2.7 ?</p><div style="clear:both;"></div>