Hi, I am just new to this but I have dealt with many phones before. I am still an amateur so take this information with a grain of salt. From what I see on the pictures, the 7th pin for the third connector down seems to either be bent of missing. Also, when you connect the phone to the computer, does it seem to show anything? Vibrate? Also, if the phone does vibrate and shows that the phone is on, then you should try to go to your computer and see if it is outputting any display to the macbook by using quicktime player. Also, is there any chance you got a faulty battery?