iPhone Repair Guide: How To Fix An iPhone 3g or 3gs Screen

Almost everyone has an iPhone today, so it’s very common to have screen damage when working with iPhone repair methods.  You’re on your lunch break finally: it’s a late lunch because work has been chaotic today, and the phone rings just as you’re carrying your lunch tray back to the table. You reach in your pocket for the phone, and in the rush of things it slips out of your hand and drops to the floor.

You pick it up only to see that your screen is now damaged. So what do you do?  The following steps can be performed on the iPhone 3G and 3GS.

Key Iphone 3G and 3GS Repair Steps

Iphone Repair Step 1: Immediately back up your entire phone! Plug it right into your PC and go to iTunes to reach your phone. Once there, select “sync”.

Iphone Repair Step 2: Collect all of the tools and equipment necessary. All of these can be purchased in packages or kits online.

You’ll need to ensure that you’re getting the correct type and size for the phone.

Here is a list of things you’ll need:

  • Replacement glass screen
  • Phillips screw driver (#00)
  • Scraping tool, wedging tool or razor blade
  • Qtips, heat gun or hair dryer, and rubbing alcohol
  • Double-sided tape, superglue and scissors
  • Small suction cup
  • Tweezers

Iphone Repair Step 3 Check out the bottom of your device. This is the side that has the home button on it. On either side of the USB connector, you’ll see two screws. Use your Phillips screwdriver to take them out. You do not have to take out the SIM card to open your device.

Iphone Repair Step 4: Once you’re done removing the screws, you’re ready to take the screen off. You’ll want to be very careful when doing this. You’ll need to use a scraping tool, wedging tool or the razor blade that goes between the rubber and metal. There you’ll lift the screen and you may see it still being attached to the phone. At this point you’ll use a suction cup to pull the screen up. Some people prefer this over the scraping tools, because of the damage scrapping tools can do to the rubber surrounding the device. Put your suction cup just over what’s known as the home button. From there you’ll gently pull the glass out, without risking any damages to the rubber gasket.

Iphone Repair Step 5: Search for flaps. These are in the top right of the phone, which hold the phone and the screen together. Labels 1 and 2 are very bright and orange on top of the flaps. Once you’ve located them, you’ll lift them off with the wedging tool.

Iphone Repair Step 6: Check to see if there is another third sticker under the number 2 flap. This sticker may be a bit different from the previous two stickers. You’ll have to lift the clamp in order to free it from the remainder of the device. Then, you just pull it on out.

Iphone Repair Step 7: Take out six more screws. The side rails have five screws, three of which are on the same side as the flaps and the remaining two are on the opposite side. The last screw is located on the top right. All of them are the same. You do not have to think about keeping track of which screw fits where. You’ll see some black tape over the screws. This is not necessary, so you can take your blade and cut the tape that’s covering the heads of the screws.

Next, you’ll separate the glass from the LCD screen by putting your fingernails between the wedge and the rails. You’ll maneuver it out. The LCD has to pop up to clear up the flange. You may need to use a little pressure here.

This will free the LCD screen from the frame. You’ll then clean the frame from the glass that’s broken if you are going to use your existing frame. This is probably the most difficult part and may need time, patience, and accuracy. The frame is delicate and can warp and break easily. You will most likely need some heat here.

Preparing Your New Glass Screen

If you’ve double sided tape available with you, you’ll want to be sure to cut the tape out correctly. If you’re using superglue, then be sure that you do not put it too close to your home button. Most new screens come with adhesive strips that you can use, this is usually the best way to do it.

You’ll put the adhesives to the wide black plastic on the top or bottom. Be sure to stay away from the middle. Don’t let any glue get into the listening piece or the home button, once again. Then, let it set for several minutes. If using tape, use tweezers to manipulate so that your finger oils don’t end up all over the tape. The oils in your fingers diminish the performance of the tape.


Put the glass and LCD back together. There is only one way to correctly do this. The rail is longer on one side than the other. This is a best way to mach it. Next, put all the six screws back in the way you took them out. After that, you’ll side the number 3 cable back into your clamp, thereby making sure that it is open.

Then, you’ll put the number 2 and number 1 cable back to the connector. Lastly, you’ll put the glass screen back on to the phone and put the last two screws into their respective places. There you have it, you’ve fixed your screen!

What If This Didn’t Work?

If at some point you get stuck or you realize that you may not be able to repair this yourself, then you can try opting for our iPhone repair services. While the instructions may seem simple enough in print, being able to implement the steps is another issue. It looks simple but is a lot more difficult than it seems. The worst part is, in case you go wrong with one simple thing, you may have to spend an arm and a leg to repair/re-purchase the device.

You can call us for a free consultation anytime you need it. We repair water damage, audio issues, cracked glass and touch panels too! Call our iPhone repair service today: you can rest assured that our professionals won’t fail you.

Repair Sharks can fix all versions of the iPhone including the 4 and 4S models. Repairs include water damage, cracked glass, LCD issues, audio problems, charging ports and more. You can check out our website for our free diagnostic services at www.repairsharks.com