Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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Backlight of iPhone 4 is dim after submersion

I took my iPhone in a lake a while ago, put it in rice, and tried to turn it on. It didn't work, so I ordered a battery from here, and it started working again. The only problem was the LCD backscreen was very very dim. I'm wondering how I can fix this problem.

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Okay, my iPhone was submerged about a month ago. It wouldn't turn on at all and I put it in rice for about a week, and still no luck. So, I bought a new battery for the iPhone and replaced it. Luckily, the iPhone turned on, and I could see that the iPhone was up and running, but the screen was EXTREMELY dim. I had to use a light source (the beams coming off it) to FAINTLY see what was on the screen, but it was on!

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Before you do anything else please follow the ifixit water damage guide.

Electronics Water Damage

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Okay, my iPhone was submerged about a month ago. It wouldn't turn on at all and I put it in rice for about a week, and still no luck. So, I bought a new battery for the iPhone and replaced it. Luckily, the iPhone turned on, and I could see that the iPhone was up and running, but the screen was EXTREMELY dim. I had to use a light source (the beams coming off it) to FAINTLY see what was on the screen, but it was on!

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Put the phone's logicboard in IPA, this removes any corrosion and may even fix this

If that dosen't fix it, you will need a LCD/digitizer assembly

The backlight is in the screen, there is also a small chip that shorts sometimes and will need to be replaced, so look for a burnt or shorted chip under the shields, in fact, remove them for the IPA cleaning

Want more info?

http://forum.gsmhosting.com/vbb/archive/...

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Nick please take more than 1 minute to read and answer a question. You probably would give better answers that way.

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is the backlight part of the lcd or is is a separate coil like on the 3gs?

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good job on the editing

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i thought so..was just trying to get nick to give a more thorough answer

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Oh I see like mentoring the little grasshopper...:-) sorry for butting in....;-)

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