Phone [Q] Galaxy S3 Simcard not detecting

I am from Saudi Arabia (KSA) , i have a galaxy S3 (i9300) it not detects some Mobily carrier Simcards (shows "No sim , insert sim card"), theses Sim cards are working well on another mobile phones .But My phone detects other Mobily sim cards and, the problem is with some mobily cards only.
I updated to 4.3 using Odin , but the problem remains same..what can i do ?