Read this website's Legal Guidelines and make sure you understand the risks of this repair. Place your iPhone 3GS on a clean flat and soft surface, such as a rubber mat or a piece of soft cloth and get the required opening tools
Both screws are removed and you can turn the iPhone around.
Step 5
We recommend using a suction cup lifter, you can pretty much use any model as long as it is small enough to fit on the front glass.
Step 6
Engage the suction cup and pull as shown in the image.
Step 10
Slowly lift the bottom of the front panel to expose the ribbon cables numbered 1 to 3 as shown in the image. Be careful not to put strain on the cables, instead easy cable number 1 loose using a safe open tool.
Step 13
Ease off cable number 2.
Step 12
Lastly gently flip upward the latch of connector 3 (the connector for proximity sensor and earspeaker).
Step 15
You have fully separated the 3GS screen module from the logic board.
Step 16
This is what it looks like when front and logic board are separated. Please remember to remove the 3GS sim card holder.
Step 17
Remove the screws of the side of the 3GS screen panel.
Step 18
Also remove the LCD screws on the other side of the screen panel.
Step 19
Release the LCD from the front assembly. To do so, carefully insert the flathead screwdriver next to the screwholes.
Step 20
Remove the screw of the proximity sensor module cover.