I just unlocked 2 iphones with firmware version 1.0.0 i did not upgrade them to 1.0.2 and for some reason when i make calls the other person can hear me but i can't hear a word of anything they are saying, i can hear while the phone is ringing but as soon as they answer the speaker goes off.
How do i restore the phone to firmware 1.0.2 i have already downloaded the firmware and i am pressing alt while pressing restore a new window comes up and asks me to choose the firmware, there are a bunch of files in the firmware folder to choose from and i don't know which one, whenever i choose one of the dmgs or other files nothing happens!

