The following guide is meant to give you a step by step instruction on how to replace a broken, damaged or cracked LCD assembly on an iPhone 4S. Please be sure to take care during all steps of this repair as parts and flex cables can be easily damaged or broken. As well, you must be sure to keep track of where each screw is removed from so that when it comes time to re-install them you know exactly where to put them. When removing or lifting flex cables, it is suggest to use plastic spudgers or plastic opening and lifting tools. Before continuing it is advised to read the disclaimer at the bottom of this article.
We suggest the following parts and tools for this repair:
Remove the 3.6mm Pentalobe or Phillips #000 screws located at the bottom of the phone near the dock connector. Note: The 5-point Pentalobe Screwdriver should only be used once as it has the potential to strip the screws.
Push the rear panel toward the top edge of the phone and remove it with your fingers or a suction cup.
Remove the two Phillips head screws that are securing the battery to the logic board, pry the battery flex cable connector up, run the plastic opening tool along the right edge of the battery to separate it from the adhesive and pull the plastic tab to remove the battery out of the iPhone.
Remove the two Phillips head screws that are securing the dock connector flex cable to the logic board (just to the left of the battery) and disconnect the dock flex cable.
Carefully peel back the dock flex cable to find the antenna cable underneath and de-route the cable from the metal fingers attached to the logic board.
Remove the outer plastic ring from the rear camera with tweezers.
Remove the five Phillips head screws from the top left of the phone in order to remove the metal plate and carefully remove the plate with an opening tool.
Disconnect the rear camera from the logic board and remove it from the iPhone.
Eject the SIM card with a paper clip or SIM Card Eject Tool and remove the SIM card and it’s holder.
Carefully disconnect the Headphone Jack Flex Cable, Front Facing Camera Flex Cable, Digitizer Flex Cable, LCD Flex Cable and Power Button Cable from the logic board.
Remove the Phillips head screw that is securing the grounding clip between the headphone jack and dock.
Carefully remove the groundling clip from the iPhone.
Use a flat-head screwdriver to remove the standoff from the screw that was just removed.
Disconnect the Wi-Fi antenna flex cable from the logic board.
Remove the black tape (if present) that covers a screw near the power button and remove the Phillips screw.
Remove the Phillips screw on the left side of the iPhone underneath the dock flex cable.
Remove the Phillips screw to the left of the battery pull tab.
Remove the standoff nearest to the cellular antenna.
Carefully remove the logic board from the iPhone.
Carefully pry the vibrator away from the phone, releasing it from the adhesive that is securing it.
Remove the two Phillips screws securing the speaker enclosure and remove it along with the plastic bracket that was installed under the screw near the dock flex cable.
Remove the tape that is covering the mounting screws at each corner of the iPhone and remove the four Phillips head screws.
Loosen the six Phillips head screws that run down the sides of the frame, three on each side.
Gently pry around the LCD Frame to remove the display assembly from the iPhone.
Remove the home button and home button gasket from the display assembly and mount them on your new LCD Display assembly.
Remove the plastic film on the back of your new LCD Assembly and follow these instructions in reverse order to re-assemble your iPhone 4S. After everything is complete, finally remove the protective film on the front side of your display assembly.
Note that the above information is provided for informational purposes only. We take no liability in for any damage or losses that may be done as a result of in-experience. If you are not comfortable with making repairs or cannot afford the loss of your device we suggest to contact an experienced professional to complete your repair.