A56 SIM does not work after update

[Members_njWFP11]

Since the last update (most notably, but maybe even before, the SIM does not work. But it did before. New phone in operation for 4 days, restarted several time after System update, PIN entered correctly. Yesterday  until afternoon, I could still receive and make calls, after the update (I think) and ever since: No incoming or outgoing calls through the SIM. Error message:"Not registered to network". No SMS either. Took the SIM out, wiped it with soft cotton cloth, put it back in. It gets recognised as being inserted in the settings/SIM Manager but no functionality.  Allegedly no mal functionality on the side of the radio network service provider (German O2) What gives?

[arianwen27]

Settings, connections, mobile networks, network operators. Turn off auto, manually select your network, might help.

[xSteveuk]

Hi
If still an issue
Try contacting your network provider
Explaining the issue you are having

[Piper123]

Reset MOBILE network settings

You won't lose data but your device will get new APNs automatically

[Members_lpBhEpy]

Have you tried a different sim, different network?

Go back to who you bought phone from.

You said german O2 but not where you are trying to usd it. Try turn on roaming.