Network connectivity

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your concern, we would request you to kindly perform the following steps to resolve your issue.

If a SIM card cannot be detected:
1: You can try to restart your phone
2: First, we need to determine whether the error is with the SIM card or the SIM card slot.

You will need to prepare either another phone or another SIM card to perform this.
Either one of the devices will determine the possibility of the issue.

Test:
Existing SIM card with another phone,
If detected then it is possible the existing phone's SIM Slot may be faulty. Please send it to the nearest service center
If not Detectablethen it is Possible, that the SIM card is faulty. Please refer to the Telco provider

Existing phone with new SIM Card
If detected then it is possible the SIM slot is not faulty. This may be caused by the existing SIM card faulty. Please refer to the Telco provider
If not Detectable then it is Possible existing phone's SIM slot may be faulty. Please send it to the nearest service center

Note:
1: Please restart the phone after changing the SIM card to allow the system to detect
2: Kindly ensure both testing devices function well before testing

If the issue still persists kindly report the problems of your Samsung smartphone with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Warm Regards,
Samsung Customer Support