I did the latest S23 update this morning (12/10/2023).  Ever since the update was completed I have had no network signal, despite the network provider having no issues in the area.  I have restarted the phone several times, checked that the SIM is registered and that no further Samsung updates are lurking.  I really do not want to have to reset the phone back to factory settings as we leave home tomorrow and it takes forever to remember and get everything downloaded and logged into again.  What other options are there please? Help