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My sgh- i780 got wet and now the keyboard is acting up

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There is corrosion or residue between the keypad and the membrane switches. Go to this link and download the Service Manual.

It will have disassembly instructions with pictures for your model. Clean the parts with some isopropyl alcohol let dry and reassemble. Refer to my standard post for wet cell phones below.

Take the battery out as soon as possible, remove the main board and soak it in alcohol (not Rum) for 10 to 15 seconds and hit it with some "blow off" duster in a can or tuner cleaner. The corrosion (whitish-green) around the legs (pins) of the chips and discrete components often renders the main board useless. You can try cleaning the corrosion off with soda water and a soft toothbrush and then spraying it out with some tuner cleaner. Take the rest apart and clean as best you can especially around the battery power input, using the method above. Let it dry overnight, reassemble it, say a prayer and turn it on. You may need a T6, a #6 Torx screwdriver. You can buy them at Sears/Craftsman individually for about $3.00.Best of luck to you.

Posted on Jul 20, 2009


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