Phone fell into water for about 10-15 seconds. I submerged in white rice within about 15 minutes, 6 days ago. I charged it, and can hear beeping from emails, etc, but there is nothing on the screen. I've heard the next step is to place it in 99% isopropyl alcohol for about 60 seconds, pat dry, and then back into the rice. Any suggestions? Is this a good idea or not?
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faythe44, STOP!!!;-) Skip the rice, it is absolute nonsense to use rice for any device that got submerged. Using rice is about the same as doing nothing, it does not do anything. 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 you have a short circuit in the LCD, but there is always the possibility that the backlight filters or diode got damaged. Those are board level repairs and are harder to repair. Start by replacing the display since it is way easier. Then work your way up.
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If this has been recent, bury in rice and leave for about 7 days
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