Just f***** a brand new screen trying to pull the digitizer cable through. Here's what i should have done again but had to take it apart twice. Get a cocktail stick and gently prize the top open the digitizer cable already has a fold hence it sticks press down the fold and push the screen home so both ribbons go through at the same time. You will get what i mean simples DONT PULL OR A NEW SCREEN WILL BE NEEDED IT TEARS SO EASY. Sorry for the language frustration lol
Out of all the repair youtube videos that supposedly people seem to know how to fix the I phone 4. Through my own error I found out the large screw at the middle top (blue) should not be removed just loosened there is a small ground clip that attaches to the threads on the screw and touches the back of the board to provide WIFI ! I found this after not receiving WIFI I striped out the main board found the clip, placed it on the top side so the small clip touched the gold dot on the top right side of the board(WRONG) the phone shorted out the power management chip so my phone wont charge or recognise the data cord! kaput !! a simple mistake but hope it gives you an advantage that's why the WIFI plate is designed to allow removal without completely removing the screw!
