Sixth iteration of Apple iPhone, announced on September 12, 2012. Repair of this device is similar to the previous models, requiring screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Black or White.

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Black Screen after display replacement

I replaced my iphone screen what caused actually a problem that no matter which display i place in (old and new one) it only shows up a blackscreen. I did everything like in the tutorial here but something happened that destroyed my phone !?

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sounds like you've blown a backlight filter on the logic board. Look at your replacement screen---if you see three solder lines on the smaller backlight flex on the screen, then those should be covered with tape. Some low quality screens have these exposed. Once installed, if the exposed backlight solder joints touch the frame it will short the backlight voltage to ground essentially blowing a fuse on the motherboard.

You'll have to send it out for board repair.

Other possibilites are damage to the LCD connector itself.

jessa

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Hey thanks for your expert answer ;D But I actually really dont know what a backlight flex is so I looked on the whole display assembly for three solder lines but I couldnt find one. Does it help to know that my computer still recognizes my iphone ? Maybe that could help to exclude a cause for that problem :(?

What I also called im rememberance that I installed my old screen with the flex cables and I checked if the display is working fine before I attached the whole screen into the case. But suddenly after the whole attachment the black screen problem appeared :(

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Yes, it is either backlight or connector. Either way, send it out for a board repair.

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