The iPhone 3G and iPhone 3GS are some of the easiest iOS devices to DIY repair. With the right tools and parts, swapping out your bad LCD for a brand new one is a pretty easy and much cheaper than purchasing a new iPhone.
Disclaimer: As with any repair, iMore nor PXLFIX can be held responsible for any damage you may do to your device. It’s also worth considering that opening up your device to perform any repair or modification can and will void your Apple warranty. If you don’t feel comfortable opening your device, don’t. Use extreme care and caution when performing a repair on any device.
PXLFIX recommends using only quality and genuine parts from a reputable supplier like eTech Parts. They have quality parts, tools, and much more for all your repair needs.
This repair will be performed in exactly the same manner regardless whether you have an iPhone 3G or iPhone 3GS.
Before performing any repair or removing any screws or parts, always power off your device.
Using your #00 Phillips screwdriver, remove the 2 screws located on each side of the dock connector.
This part can be a bit tricky so please do this with extreme care so you don't tear any cables during the process.
The easiest way to remove the digitizer assembly is by using a suction cup.
Remove the cables that attach the digitizer assembly to the logic board:
Once you have the bottom of your digitizer assembly popped up we can remove the cables attaching it to the logic board.
At this point you can set the body of your iPhone aside and flip over the front screen assembly, which contains your earpiece.
For this step, you'll need to remove 6 screws that hold the LCD in place. If you've replaced your digitizer before, you should be familiar with the screw locations and how to remove the LCD.
Most LCDs will not come with a new back frame so you'll need to remove the frame off your old LCD and place it on the new one.
Peel the backing (protective cover) off the new LCD and place the frame onto the back of the new LCD. Most replacement LCDs will come with adhesive already installed. If not, you can use any type of electronic adhesive you'd like. I personally prefer using a universal double-sided adhesive
Now that you've gotten the new LCD placed onto the frame, it's time to reassemble your iPhone 3G or iPhone 3GS. To do so, simply follow these instructions in reverse order or watch the video above for a walk-through of reassembly.
When you power your iPhone up you should now have a fully functioning LCD again. If for some reason the LCD doesn't work, first check the cables and make sure they are secured to the logic board correctly and securely. If you run into any other issues, check out our mod and DIY forum links below for even more help and tips.