What if the cell phone signal is unstable?

The mobile phone has the problem of unstable signal or poor signal, so it is suggested.

Restart the phone or change the location.

It may be that the signal coverage in your location is not good, so I suggest you restart your mobile phone or try to change a location.

Clean the SIM card chip

Turn off the phone, take out the SIM card, and wipe the SIM card chip with an eraser.

Replace SIM card

Replace other SIM cards.

Update the mobile phone system version

If the signal is still bad, please try to update the version of the mobile phone system.

Restore factory settings

If the above problems still occur after the update, please back up the mobile phone data (phone book, SMS information, multimedia materials, etc. ) and try to restore the factory settings.

Please go to Samsung Service Center for testing.

If the problem still exists after the above operation, it is recommended that you bring the purchase invoice, three-guarantee certificate and mobile phone to the local Samsung service center for inspection by engineers.