I have Iphone 4s that is on warranty but its screen has stopped working when i peek in with a external light it shows iphone disabled. and can not restore from i tunes as well. i am in pakistan and phone was bought from Canada. how can i get assistance?

hello can apple help me out.i am from Pakistan, i received iphone 4s as a gift, it was purchased in canada last march 2012. unfortunately its screen stopped working and inside screen when i try to look with external light. there was message "iphone disabled for 60 minutes" i tried restore but could not it downloads update but does not do anything i am heck upset its really something means to me alot. I tried to find out warranty claiming process but here in pakistan it has not been officially launched. Why so ? in a country where 50% people are using iphone and apple is not there? i was really shoked. well i really need help.please guide me how can i get it replaced or anything that can be claimed in warranty.it is still on warranty. But i am in pakistan where i can not find any istore where they deal with warranty. Please guide me i have studied alot and have read stories about people having same experience and apple helped them alot. I am amazed that i been giving marketing presentations on a brand which is not in my country but heared much "good" about you. and was having great experience of your device. Please dont make it true what i have heared about you.

Regards.