This is a work in progress, most certainly. There are plenty of reports that water damaged phones can't be revived for whatever reason. So far, I have 3 phones from completely different sources (think toilet, kitchen sink, shower, LOL) that I was lucky enough to make work just like before that fatal dive. Even better, I'd say, after I put CM 10.1/Jelly Bean on them.
On my picture above, it's dead as door nail. Hence the purchase price of $20. A wager, sort of.
Here goes the procedure:
WARNING! My method is a combination of several methods described in several instructional videos, plus the additions of what was omitted in them. These omissions include but not limited to, exact formulas for treatment of hardness salts deposits.
Sure, you might be lucky dropping your phone in a reservoir with distilled or very soft water: after recommended thorough and prolonged drying your device in dried crushed rice, your phone is usually becomes clean and works properly.
Chances are though that your bath for your phone involves an ordinary tap (hard) water, or even sea water. Both types of water (so called "sweet" water and salted water) leave deposits that both hard to remove and may act as parasitic shorts disrupting normal functioning of the phone.
In such cases, a combined approach to repair is recommended. Namely, a mechanical brushing off salt deposits with a short haired, hard brush which is wetted in a cleaner that works against lime, calcium and (maybe) rust. Wetting an affected area with such a cleaner will render the hardness salts deposit film transparent and almost invisible, so there must be a period of setting aside the phone for drying after such brushing. A cotton swabs dipped in 95 % alcohol may shorten this drying period. Use of alcohol can also be preferential because of it picking up residual hardness salts deposits and chemicals (usually conductive electrolytes no better than hardness salts themselves) used in that cleaner.
However, alcohol is no better solvent of hardness salts deposits than water. Professional lime cleaners can be way too strong and damage connectors. So, if you follow me, it's mostly brushing and as such it better be repeated several times. In especially tough spots, a careful work with dentist's scraper might be needed. Then, plenty of surface must be treated, both sides:
In my case, it took 2 attempts of brushing with two hours of drying between them. Second brushing was performed with dry clean brush. All in all, in five hours, my Samsung Skyrocket have started to charge its long dead battery.
After the rescue, we have a nice at@t Samsung Galaxy S2 running pretty fast Qualcomm's Snapdragon APQ8960 at 1500 MHz on a decent 4.5" 800x480 SAMOLED Plus screen.
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