Upgraded to One UI 8.0 and now my phone says it don't have a SIM card?

[Nittany]

When I upgraded to One UI 8.0 on my galaxy A15 5G everything was fine but then next morning my phone starts acting weird like it thinks it dont have a Sim card when in fact it does

[Mujibar]

Things to try:

1. Wipe the device cache. See this post for steps:

https://us.community.samsung.com/t5/Tips-Tricks/Best-Practices-After-an-Update/ba-p/3200871?src=Shar...

2. Turn off your phone, remove the SIM and reseat it in the tray, restart your phone.

3. Reset mobile network under settings > general management > reset.