2014년 9월 19일에 출시된 이 4.7” 스크린 iPhone은 iPhone 6 Plus의 작은 버전입니다. 모델 번호 A1549, A1586 및 A1589로 식별됩니다.

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Bad backlight on water-damaged iPhone

after water damage i open iphone completely and let it dry for 48 hours , using compress air to get rid of water. After power on , it works but back light screen is not turning on. Can this be fix?

thanks

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mariano, the very first thing you want to do is to not try to restart/sync the phone. This may further damage your phone. The next thing to do is to clean it. Disassemble your phone using these guides. You must remove all the EMI shields of the logic board. If you do not remove those you are not cleaning 3/4 of the board. Clean everything with +90% (no less than 90%) isopropyl alcohol. Follow this guide, and even so it was written for a 3G all the points are still pertinent to your phone. Pay particular attention to the SMD components, check for charred missing or broken missing. You can then dry the board in an oven or equivalent at 220deg F (not higher;-) for a few hours. Best way to clean it would of course be through an ultrasonic cleaner. Consider professional help with that When it is properly cleaned, replace the battery. All these steps are to avoid delayed failure caused by corrosion. Once all this is done, reassemble your phone and reevaluate. It is possible that it is "only" LCD that has a failed backlight. If your LCD is okay you could have issues with the backlight circuitry on the board. Possibly damaged backlight filter coil etc. but all that you can only determine once you cleaned the phone properly. Hope this helps, good luck.

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yes but only by professionals and btw. Your dried Iphone is dying as we speak, since the corrosion keeps advancing since it has not been cleaned properly.

My advise would be, get it to a professional or a new phone. If you decide to have it fixed, you have to hurry, the longer you leave it untreated the more complicated the repair itself.

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Yes it could be fixed ! :)

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mariano 가/이 대단히 고마워 할 것입니다.
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