https://devzone.nordicsemi.com/f/nordic-q-a/96360/nrf9160-modem-firmware-compatibilityHello, in the documentation is described which nRF Connect SDK is combatible with a defined Modem firmware Its not clear for me if the SDK version is a &quot;minimal&quot; or a &quot;exact&quot; version? Mean this that for example SDK 1.6.1 is incombatible with modemen-USTelligent Community 13Mon, 06 Feb 2023 14:20:01 GMThttps://devzone.nordicsemi.com/thread/408310?ContentTypeID=1Mon, 06 Feb 2023 14:20:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:61cc78ae-333a-487e-9c34-33d34c8717c0&#216;yvind<p>Hello,&nbsp;<br /><br />The modem firmware compatibility list is tested as they&nbsp;moodem firmware and nRF Connect SDK are listed. This&nbsp;does not mean that e.g. SDK v1.6.1 is incompatible with modem fw 1.2.3, but we can not guarantee 100% compatibility..&nbsp;</p> <p>I don&#39;t have a &quot;minimum&quot; supported version unfortunately, however,&nbsp;staying to modem fw&nbsp;1.2.3 and above is probably the best. For the SDK you should test below v2.x.x to ensure compatibility.</p> <p>Kind regards,<br />Øyvind</p><div style="clear:both;"></div>