Hey, firstly I'm sorry for reviving a clearly dead, and what seems like an informational only, topic. But I was replacing my digitizer today at the end of my repair I got the phone started yet the touchscreen was entirely unresponsive. So I opened it back up and went through it again to see what I did wrong and I noticed that one of the flex cables going into the jaw connector on the bottom (in figure 3 of the first post) that connected to the home, menu, back, and search buttons was cut. So I'm assuming that this was the reason for the dead touchscreen and basically what I'm trying to find out is: what is the name of that flex cable, and if at all possible, where can I find a replacement part with that cable?
Sorry for the long read, but as this is my only phone I desperately need it up and running again.