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I took an iphone 4S apart and had the screws organized and taped on a piece of paper and I lost the paper. I purchased the iPhone 4S screw set but I am not sure of the locations of the screws. I was wondering if I can get a diagram for the screw exact locations.

If you follow a guide such as Installing iPhone 4S Display Assembly in reverse, you will be able to identify and measure the screws as you put the phone back together. Use a small ruler to accurately measure the length of the screws.