Front screen of iPhone 4s is completely cracked in this picture.

Use Pentalobe screwdriver to take off two screws at the bottom.

Slide the back housing cover upward.

You will be able to see internal components after taking off the back housing cover.

There are 5 screws on the top circled in this photo. There are 2 screws on the middle circled in this photo. There are 2 screws on the battery connector circled in this photo.

take off two screws on the connector plug circled in this photo. Remember group screws apart on the magnetic for re-assembly afterward

Flip up the plug of battery by a spudger as what we’ve shown you in this photo. You might be able to find that there is a tiny piece of metal which is covering the antenna plug. Remember the position for re-assembly afterward.

take off two screws circled in this photo. Remember group screws apart on the magnetic for re-assembly afterward

Remove Sim Card Tray by Pin stabbing into a little hole shown in this photo.

Flip up the connector plug of charging dock connector by a spudger.

Move cable aside.

Remove battery from another side avoiding damage of motherboard or other parts. Caution: Battery is glued by Super 3M sticker, you might need to use flathead remover to take that out from the panel.

There is a screw beside the Vibrator (silver circle shape). Remember to group screws apart on the magnetic for re-assembly afterward

take off the screw i mentioned in previous photo.

Carefully disconnect the antenna on board circled in this photo.

Remove the screw which is on the left side of Silver Vibrator

Gently take off the metal bracket after removing 5 screws on top.

Remove the screw as photo shown you.

Take out the metal piece after removing the screw shown in previous photo.

Remove the screw by a flathead screwdriver as photo shown.

Firstly, disconnect 3 connectors on the left side of motherboard by the spudger.

After disconnecting connector plugs will be exactly looked like what you can see in the photo.

Then disconnect the Connector plugs located on the top side shown in photo. Caution: remove a screw which is covered by a little black tape circled in the photo.

Disconnect WIFI antenna on the top side.

Pick up the antenna at the bottom side like what we’ve shown you in the photo.

Slowly take up the motherboard from the bottom as shown in the photo.

Caution: Move all obstacles aside while removing motherboard out.

Take out the metal piece.

Remove a screw on the right side of loud speaker then taking out loud speaker.

Use the hairdryer to heat toward for melting glue under the sliver round vibrator.

Pick that up easily after glue melted.

Remove a screw which is located on each corner at the bottom of iPhone’s frame.

Remove a screw which is located on each corner at the top of iPhone’s frame.

Remove three screws which are located on each side of iPhone’s frame.

Use a spudger to disconnect the “digitizer and screen plugs” and get ready to apply new screen on motherboard for testing.

Always do a proper testing before installing a new screen on.

Heat up the top part of screen and get ready to remove the screen.

By using suction cup and spudger to seperate the screen and middleframe.

Use suction cup to pull broken screen up from the bottom gently.

Beware of damaging the cable while using suction cup to pull up the screen.

Heat up the buttom part of the Digitizer, will make it come off easily.

Taking up the broken screen from the bottom by a spudger going around the iPhone’s frame.

Important: Make sure those two cables through the gap as shown in this photo, no matter installation or removal. Caution: Damage cables will cause non-function of LCD and touch screen.

Clean up top and bottom, make sure there are no broken glasses left on the surface of middle frame.

Reuse the earpiece grille from the original screen.

Reuse the original little sensor foam from the original screen.

Easily remove the home button, try to not damage the sticker.

Reuse and replace the camera mount.

Peel of Protector before install.

Thanks for taking a look at our instruction blog for iPhone 4s LCD touch screen replacement