Default I need your help guys!!!

Hi every one...
My problem is I have updated my s3 to 4.3 official update ok !! And I faced problems with it so all I want from you guys any one know where can I find official update with 4.2 for the saudi arabia country or a website having a many countries updates I will thank him for helping me

I have look into sammobile and updates Samsung websites I haven't find any update with 4.2

And thanks in advance