Hi.
Just checking the update you refer to is Software update: 3.A.0107.20210513 and I wonder if it is network related; you may like to try a friends sim card to be sure. Please indicate which network you are actually using currently.
I don’t experience this issue, but then I usually use wifi. I have a problem where wifi won’t automatically connect once switched off since the last update 0107 I was about to check into that so thanks for the prompt. 