Why is my Nokia Lumia 630 in Flight mode and says no SIM?

[Windows Central Question]

My Nokia Lumia 630 is in Flight mode and says no SIM

This happened automatically last night, tried taking SIM and battery, Soft reset, what do I do please can anyone help

 

[RumoredNow]

Re: My Nokia Lumia 630 is in Flight mode and says no SIM

Check with your carrier?