My Samsung S6 is not registering the sim

[AC Question]

I have recently had this S6 phone and it wont read the sim. I have tried multiple sims in it and tried the original sim in other phones and it works fine. It says that there is "no sim inserted". I have tried different methods i have seen online such as putting paper in there to hold the sim if there is something wrong with the tray. I also read somewhere about registering the sim through the mobile networks setting which when i have looked for it, its is actually missing. I dont understand what it wrong with it and why it is doing this.

 

[belodion]

If it will recognise no SIMs, which I think is what you're saying, the tray or reader may be faulty.