Why doesn't my new screen turn on?

iPhone 6 with a dead display. Original screen was cracked after a drop. Initially the cracked screen did work, just hard to see what was being displayed and touch didn't work.

I purchased a new screen, product code IF268-001-1. Move some components from old screen to new screen and installed it without issue. Unfortunately the new screen doesn't turn on.

I've disconnected the battery and let it sit for a few hours. Still no luck.

I've held the power and home button for 10 seconds, 30 second, 1 minute and 1.5 minutes. None of those turned the screen on.

When connected to the PC and iTunes it is detected and seems to still work as it should.

I tried the old display and that one doesn't work either? I've inspected the components inside the phone and none of them look to be damaged.

Any suggestions?

Update (05/27/2015)

This is the best I could do with my camera. Thoughts? Looks like the pins are OK on the display and the board.

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please take a quality picture of the LCD/DIGI connectors on the logic board for us too see.

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By the way, I had to post this as an "Answer" since adding it as a "Comment" deleted the pictures.

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4 Soluções

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Are you sure you put the screws back in correctly? There's a long screw holding the LCD plate. Put it in the wrong place and the backlight doesn't work. The screw is only 1mm longer so it's VERY easy to do. Unfortunately the solution isn't easy as what the screw does is damage a trace on one of the internal layers of the logic board below the screw seat. So you need to bypass or reconnect that, both of which require a microscope, quality soldering equipment, and a fair bit of experience. Google "iPhone 6 long screw damage" if you think this might be the issue.

If you're sure it's not that, here are some other things to check:

1. Disconnect the LCD cable. Check the socket on the logic board for bent/damaged pins and fix as necessary. This is VERY common.

2. Do a factory restore. Software issues can cause this issue.

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Vs Electronics,

Thanks for the suggestion. The long screw may be what's causing the problem. I'll look into it this evening to see if that's my problem.

Thanks Again!

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Once I had the same problem when i disconnecting and connecting the display.

I connected then the phone via USB to PC, Pc recognized it.

I tried hard reset (still conected on PC) and then the display worked.

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Long screw damage I bet is your problem and the backlight is blown..

Hold your phone up to a light and you should faintly see what's happening on the screen

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con,

I put a flashlight up to the display when turning it on and I didn't see a thing. Even did a hard reset (power + home) without any luck. thanks, though.

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I would try to realign the flex cables and make sure they are pushed in sometimes when they aren't pushed in fully you do get a dead screen. From what it looks like the cables aren't bent which is a good thing, when you worked on the phone did you notice any static or shock while working? If so you may have shortened one of the components in the phone as well.

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boyerq,

I just tried again without any luck, but thanks. I've tried it so many times I would have had to get it right at one point, haha.

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