I replaced the glass only. This require some quiet time and good lighting. There are actually 2 ribbon cables-1 ribbon cable is from the digitizer glass screen and is easily removed with a miniaturized version of the type of connection used to connect some laptop hard drives. The black clip slides away from the center of the processor board to the periphery of the board. The larger of the ribon cable is removed by rotating a very small arm/clamp counterclockwise into the processor board. Mine was a bit sticky in removing the ribbon cable from the second connector. I placed each part in order as I removed them and assured that the unit booted after installing the ribbon cables and before installing the remaining parts.
One note, the plastic cover for the USB port and the docking connector is a small separate piece that mus be placed before "sandwiching" the back piece back on to the unit and securing with the 4 torx screws.
As mentioned in other places the basic steps are: 1)remove slide out back panel and battery 2)remove 4 torx screws and pull case back off the pronto exposing the processor board. 3)remove the 3 torx screws affixing the processor board to the mounting posts. 4)gently remove the 2 ribbon cables as instructed above. 5)the channel/vol button row and a rectangular mounting /spacer piece wil likely pop out, and the contact pad for all the hard buttons will also pop out 6)you will be left with lcd screen embedded and protected by a metal rectangular case to which the flat glass lcd screen is affixed (aggressively). 7) Use an exacto blade and separate the glass at the junction to the metal frame and separate the glass (which may split into 2 elements-glass/plastic) from the metal frame. The ribbon cable connected to the digitizer glass is adhered to the back side of the lcd cage and can be slow separated by gently pulling. 8)Scrape/clean all the adhesive residue from the metal frame. 9)Take out the new glass digitizer screen-placing the digitizer ribbon cable in the same place as before it was removed. Remove plastic protection from anterior and posterior surfaces new digitizer glass. Remove paper cover from 1/8" double backed tape and line up accurately and align/place on to metal frame. 10) Put humpty dumpty back on the wall.
