iPhone 3GS

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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Black screen after LCD replacement

My iPhone 3GS had a white screen with vertical stripes, so I have replaced the display. The power switch was broken, so I could not turn it off before changing it. I have also changed the rear case and the power switch. The repair went well, but now the display is completely black, with not backlight. The iPhone vibrates when the mute button is turned on and off, and it is recognized by iTunes. I checked that the connector #1 was correctly plugged. I've also tried to restore the iPhone but the screen is still black. Can this be fixed?

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try the ribbon cables

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If you changed the screen before turning it off, it is a good possibility you have blown the lcd

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Thanks for your answer. Now that I have repaired the on/off button, how can I turn the iPhone off ? I have restored it, but since the LCD isn't working I am not sure in which state it is right now. It still vibrates, so I am sure it's on though.

by sebastienmaret

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Hi Seb,

You have probably not connected the ribbon cables properly.

Corbin

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sebastienmaret will be eternally grateful.

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