Info 2 [Q] can't switch to 3G :'(

Hi all

I've got a problem with my Verizon S III device

I live in a country that doesn't have any 4G networks ( 3G only )

so i went to "settings">"more settings">"mobile networks">"network mode"

there i tried these:

Global witch doesn't connect to 3G

LTE/CDMA witch gave me that my SIM have "no service"

GSM/UMTS witch didn't connect to 3G also

so if anyone would help me on how to connect to 3G network I'd appreciate it