Differences between nrf9160 B0 and B1https://devzone.nordicsemi.com/f/nordic-q-a/75046/differences-between-nrf9160-b0-and-b1Hi, When looking at the release notes for the latest nrf9160 modem firmware, it says that the B0 devices are for development only, and B1 for production. I have a number of custom test boards I have made as well as a number of unused nrf9160 B0 devices;en-USTelligent Community 13Wed, 12 May 2021 09:12:05 GMTRE: Differences between nrf9160 B0 and B1https://devzone.nordicsemi.com/thread/309420?ContentTypeID=1Wed, 12 May 2021 09:12:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bd72ee9f-6f37-4794-83dd-9b03cf3fc596&#216;yvind<p>Hello Jeremy,&nbsp;</p> [quote user=""]When looking at the release notes for the latest nrf9160 modem firmware, it says that the B0 devices are for development only, and B1 for production[/quote] <p>Yes, this is correct. This has to do with certifying the device on a network. The B0, revision 1, is not certified with modem fw 1.3.0, while B1, revision 2, is certified. <a href="https://infocenter.nordicsemi.com/topic/comp_matrix_nrf9160/COMP/nrf9160/nrf9160_operator_certifications.html">Please see our mobile network operator certifications overview</a>.</p> <p>For further question, please contact your local RSM.<br /><br />Kind regards,<br />Øyvind</p><div style="clear:both;"></div>