Sim card not inserted

[SHOPU]

My m21 says no sim card  inserted. Yours device is unable to make call or contact to mobile network.

[AYush2313]

Is that sim slot 2 ??

[SHOPU]

Sim slot 1

[AYush2313]

Go to service centre ...

[Samsung_Support2]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. To resolve your device network issue please visit this link: https://www.samsung.com/in/support/mobile-devices/samsung-mobile-network-issues/#:~:text=1%20Check%2....  

In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support