samsung galaxy s duos

[rawanhanun]

I ordered a galaxy s dous from saudi and i live in thailand...when i got it here i tried inserting my sim but tge phone kept on saying SIM not inserted

 

[aatje92]

Is it sim locked maybe?

 

[Someone Somewhere]

Does it support the frequencies your local phone company uses? I wouldn't expect it to show no SIM, but maybe.