https://us.community.samsung.com/t5/Galaxy-S21/UI8-Android-16-update-SIM-not-recognized/m-p/3416857#M97952 <P>Having same issue, updated the phone this morning, made a call before the update and now there is no SIM detected.... can we have this looked into urgently.</P> Fri, 28 Nov 2025 07:39:40 GMT Omotara 2025-11-28T07:39:40Z