Samsung S20 FE undergone software update UI4 Android 12, post that my sim is showing as unknow. I tried switching off/ on device, sim re-insert, however phone is not able to detect the sim. Please help to resolve this issue.
We apologize for the inconvenience you are facing. We understand your concern and will help you resolve this. Kindly follow the below steps to resolve your issue:
Check device network mode settings Please follow the below steps.
Step1: Navigate to apps screen and tap on Settings. Step2: Tap on Connections. Step3: Tap on Mobile networks. Step4: Tap on network mode SIM1 or SIM2. Step5: Select network mode.
Note: We recommend to set device network mode as LTE/3G/2G (auto connect) mode.
Check network operator settings Kindly set device network operator as "Automatically".
Please follow the below steps.
Step1: Navigate to apps screen and tap on Settings. Step2: Tap on Connections. Step3: Tap on Mobile networks. Step4: Tap on Network operators. Step5: Select automatically. Note: We recommend to set device network operators as LTE/3G/2G (auto connect) mode. Step6: Tap on OK. Step7: Registered on network.
In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report).
