https://devzone.nordicsemi.com/f/nordic-q-a/48477/unable-to-update-modem-firmwareWhen I was trying to update the modem firmware, it showed something like this... Traceback (most recent call last): File &quot;c:\python37\lib\runpy.py&quot;, line 193, in _run_module_as_main &quot;__main__&quot;, mod_spec) File &quot;c:\python37\lib\runpy.py&quot;, line 85, inen-USTelligent Community 13Wed, 12 Jun 2019 13:49:25 GMThttps://devzone.nordicsemi.com/thread/192420?ContentTypeID=1Wed, 12 Jun 2019 13:49:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:42fe15c6-e34c-4546-af05-3d19844a8a84Sigurd<p>What version of nrfjprog do you have ?(nrfjprog -v)</p> <p>Try installing the latest version from <a href="https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF5-Command-Line-Tools">here</a>.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/192300?ContentTypeID=1Wed, 12 Jun 2019 09:28:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1b85a482-fe7a-4371-811e-8338db35b95eNYP NB-IOT<p>It is already set to nRF91.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/192279?ContentTypeID=1Wed, 12 Jun 2019 09:02:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:55e55e41-894c-49e5-a109-7484cfe9ad5dSigurd<p>Hi,</p> <p>Make sure that the <span>PROG/ DEBUG switch(SW5) i</span>s set to nRF91.</p><div style="clear:both;"></div>