Refreshing Sim Data

[Anonymous]

I am constantly getting this error on my new S21FE 5G is it due to old sim Card or because of Vodafone or is it a fault within the phone itself..?

I am not able to understand this and what is the solution for it..?

The only frustrating thing is network keeps on dropping and call drops are frequent.

Can anyone help me on this topic urgently.

[DEEPCHANDRAMAURYA]

Please rest your phone
Probably backup on your data

[Anonymous]

You mean I need to backup all my data and then do a full factory reset..?

[DEEPCHANDRAMAURYA]

Yes

[vaibhavraj]

First remove the sim and re insert again and Turn on data roaming, volte on and APN (access point name) reset to defaults if doesn't work check with other sim - voda is very bad

[cs_member8]

Dear Samsung Member,

Greetings from Samsung Customer Support!

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).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support