Why is my screen dim?

Question

iPhone 3GS

Versión renovada del iPhone 3G con velocidades de procesamiento más rápidas. La reparación de este dispositivo es similar a la 3G y requiere destornilladores simples y herramientas de palanca. Modelo A1303 / 16 o 32 GB de capacidad / respaldo de plástico negro o blanco.

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sportsrocks213 @sportsrocks213

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1

Publicado: 11 de dic. de 2009

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Why is my screen dim?

Hello

I recently repaired an iPhone 3GS. When I had connected the last of the ribbon cables, i turned the phone on. It worked, but it was extremely dim (practically black). I managed to make it to settings and adjust the brightness, but neither sliding it all the way up or all the way down had any effect. Then, when i disconnected the display and tried to connect it again, nothing was displayed at all! What could this be?

I was replacing both the LCD and the glass.

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Ben Eisenman @beneisenman

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Publicado: 11 de dic. de 2009

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It sounds to me like a backlight issue. What were you originally repairing on it?

First, double-check the connectors.

Then, I would replace the Display first. If this does not fix the problem, signs point to the logic board, unfortunately.

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Apple Pie Repair @applepierepair Rep: 115 2 · Answer 1 · 2010-10-03T19:13:11-07:00

Apple Pie Repair @applepierepair

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Publicado: 3 de oct. de 2010

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it could be a bad lcd chip on the logic board. it happens a lot with liquid damaged phones. if a new lcd does not work then i would believe the chip would need to be replaced. no guarantee. it's extremely difficult to solder something that small, but we're champs at it here.

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Tommy Yeah @tommyyeah Rep: 1 · Answer 2 · 2011-07-06T12:03:24-07:00

Tommy Yeah @tommyyeah

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Publicado: 6 de jul. de 2011

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I think you can check the 6R8 coil,most of the backlight issue was caused by this item

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chet @chet5933 Rep: 1 · Answer 3 · 2011-08-10T21:22:12-07:00

chet @chet5933

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Publicado: 10 de ago. de 2011

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Same issue I got.Only difference is My LCD is still working with only exception of very dim screen. Any fix to this issue? Please let us know if you got it fixed.

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iPhone 3GS

Why is my screen dim?

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