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The Apple iPhone 5s was announced on September 10, 2013. Repair of this device is similar to the previous models, and requires screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Silver, Gold, and Space Gray.

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Phone turns on but screen stays black after digitizer replacement

Hello,

I got an iPhone 5S for screen replacement. I removed the broken screen, plugged the new one to test if everything was working and it was. I transferred all the component from the old one to the new one and turned the iPhone ON and nothing. No logo. Tried other screens and same problem, even the broken one won't work.

I checked the connectors and everything is OK, no missing pin.

I tried a hard reset and nothing happened, no Apple logo.

I plugged the iPhone in iTunes and it recognizes the device, tried DFU mode, restore and it worked, but the screen still shows nothing.

I looked at the screen with a flashlight to see is it was the backlight that was defective but I see nothing at all.

I am out of clues, so if anyone for an answer for that one it would be appreciated.

Thank you.

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After testing multiple parts to confirm its not any single bad screen, the lcd connector on the motherboard may have gotten damaged. If that's the case, you would need a new motherboard, new phone, or some serious soldering work. I hope that's not the case but the issues you have described sounds like the motherboard may have been damaged if you have tried multiple parts to no avail.

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Also could be long screw damage if the longer screws were used on the two screw holes that sit on the logic board.

You would need a microscope to check the screw holes near screen connector metal plate on logic board.

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JPL will be eternally grateful.
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