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Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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HELP- my screen is flickering with grey lines after changing screen

I changed the screen following the fixit guides and now my screen is whitish pink and flickering with grey horizontal lines!!!

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Try a Reset, hold both Home and Power buttons until the iPhone restarts on its own. If fixed great. If not....

Then carefully open iPhone and reseat Flex Cable #1 the LCD display flex cable. When working on an iPhone 3GS make sure it is OFF during all repairs.

If the LCD is still problematic, replace with a good 3GS LCD display. If still problems could be Logic Board.

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