Insert a small iPod opening tool with the edge angled up toward the underside of the display between the white plastic backlight and the metal shield beneath it.
Pry up along the lower edge of the display enough to grab it with your fingers, being careful to not flex the screen.
Lift the display up from its lower edge and rotate it toward the top of the Touch.
The next few steps require removal of components under where the display normally sits. Be sure to hold the display to avoid putting tension on the delicate display ribbon cable.
Remove the seven Phillips screws securing the metal display tray to the rear panel. They may be very tight; watch carefully to make sure you don't strip them.
The two darker screws belong in the two holes in the tray nearest the bottom edge of the Touch.
Lift the metal display tray slightly (the battery is attached to its underside) and remove the display from the Touch, minding its delicate cable that may get caught.
The display ribbon cable is routed under the metal display tray.
is there a way to repair the headphone jack? mine only gives out a tiny bit of the frequency response, no bass or treble at all, and i can tell it's probably the ribbon cable.