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Picture of Fixing cracked glass on iPhone 3g/s
If you have ever experienced the pain and despair of picking your once shiny iPhone off the ground to find a disgusting fissure across the screen? Don't panic, if you are reading this, you have probably already been turned away by your local Apple store. With the replacement part, a steady hand, and little bit of luck, your phone can be as good as new! I would rate this process as moderately easy, assuming you have some basic tinkering experience or technical knowledge. I accept no responsibility for the damage you may or may not inflict on your iPhone while performing this tutorial. I highly recommend that anyone attempting this process, carefully read through my entire tutorial before proceeding at their own risk. 

NOTE: This tutorial is done with an iPhone 3gs but the process is EXACTLY the same for the 3g, a specific replacement digitizer is required for the 3g however. 

Step 1: Materials and Tools needed

Picture of Materials and Tools needed
Materials

1. Replacement Digitizer for Iphone 3g(s)
2. Iphone with damaged digitizer(glass)
3. Phillips Head screwdriver size #00
4. Jeweler size flathead screwdriver
5. Suction Cup
6. Hairdryer (not pictured) 
7. 3m double sided sticky tape  
 
TimsProjects9 months ago
I was doing this and I pulled too hard on the suction cup. The ribbon thing ripped. I'm guessing I should say goodbye to that phone. :( HELLLP
You can just buy a new screen and digitizer assembly. it shouldn't be much more than 20 bucks.