network issue

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Thanks for being with Samsung and for sharing your concern. We would like to suggest you kindly follow the below mention steps to overcome the Issue;

Check by using any other Sim card.
- Ensure that network frequency of your device should be selected on Auto-mode.
- Menu > Settings > Connections > More Networks > Mobile Networks > Network Mode > Select auto mode (GSM/WCDMA/LTE).
- Search for the Network Manually as follows:
Menu > Settings > Connections > More Networks > Mobile Networks > Network Operators > Select Manual Search.
- Kindly go to settings >> General management >> Reset >> Reset network settings.
- Please run your device in safe mode.
- Please do reset your device on factory mode after taking the data backup Via Smart switch.

Be sure to hit ♡ when you find an answer that works for you.