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Repair information, troubleshooting tips, and guides for the sixth iteration of Apple iPhone, announced on September 12, 2012. Model: A1428, A1429

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Screen brightness only partly working with slider

Hello,

I replaced my iPhone5 battery and during that process something went wrong. My LCD screen wouldn't turn on anymore and it is probably completely broken. So I bought a new LCD/digitizer. I fully replaced it and my iPhone is working again.

However my screen is very dim. The backlight is working up to around 35% of the brightness slider. I can dim my screen with the slider to 0% (and make it brighter again), however above around 35% of the slider it makers no difference. Although the slider is at 80% or 100%, the LCD is still very dim like the slider is at 35%.

Someone has a suggestion on how to fix this? I already bought another LCD/digitizer but it had the same problem.

Answer this question I have this problem too

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I would troubleshoot like this:

1.) Rule out software--hard reset, then restore

2.) Rule out peripherals (sounds like you've done this) known good LCD screen/put board in a known good housing

3.) Send board out to someone like me but ideally local for backlight repair on the motherboard--replace filters, backlight ic, backlight coil

good luck!

jessa

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1 Comment:

Thank you for the reply jessa.

1) It's not a software problem, because I already did a full (hard) reset without improvements.

2) I will buy another LCD screen from an other store. (bought two from the same store, both same problem)

3) When above steps won't work I might go for a backlight repair and see if that solves the problem.

by

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how to resolved iphone 5 brightness light . and network problem.

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Frank will be eternally grateful.
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