backlight out. Dim LCD

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iPhone 5s

Repair information and guides for the Apple iPhone 5s that was announced on September 10, 2013. Model: A1533, A1453, A1457, A1528, A1530, A1518

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jeff @jeff62315

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Posted: Nov 28, 2014

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backlight out. Dim LCD

ive got a 5S with a bad backlight. New screens don't fix it. The problem seems board level. Can you repair it and how much, please?

Answer this question I have this problem too

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Did you find a solution for this? I also have a very dark/dim screen after replacing. tried replacing the screen two times. Starting to think it is the logic board

Jan 10, 2015 by oyvindrosmer

Edit: i have another, similar question in another thread, which jessabethany answered:

"Has this phone seen water?

If not, then it sounds like you're not getting enough juice through the backlight circuit. Inspect the board near the LCD connector to see if you can find any missing components. Pull up the black sticker to get a closer look.

Edit: It sounds like your phone was fine prior to using a cheap screen. These screens often have an exposed backlight flex. Closing the phone can short the backlight to ground which will blow a backlight filter on the board. Repairable. Just need to have the filter replaced and you'll be back in business.

jessa"

Jan 11, 2015 by oyvindrosmer

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Did you find a solution for this? I also have a very dark/dim screen after replacing. tried replacing the screen two times. Starting to think it is the logic board — oyvindrosmer
Edit: i have another, similar question in another thread, which jessabethany answered:

"Has this phone seen water?

If not, then it sounds like you're not getting enough juice through the backlight circuit. Inspect the board near the LCD connector to see if you can find any missing components. Pull up the black sticker to get a closer look.

Edit: It sounds like your phone was fine prior to using a cheap screen. These screens often have an exposed backlight flex. Closing the phone can short the backlight to ground which will blow a backlight filter on the board. Repairable. Just need to have the filter replaced and you'll be back in business.

jessa" — oyvindrosmer