sim not detected

[vishu1w3]

My new galaxy  M31 not detecting sim card.

[ArpitShivhare]

Use that sim card in other device to confirm that Sim card is fine.

[vishu1w3]

working fine in other device and also other sim is working in M31 .
particularly this airtel sim not working in M31

[ArpitShivhare]

Then contact Samsung Care & Airtel care

[vishu1w3]

now showing checking

[ArpitShivhare]

What you want to say in last comment ?

[vishu1w3]

initially it was showing no sim card, now instead showing checking but yet no network

[ArpitShivhare]

The you need to call Airtel (121)