The Samsung Galaxy S3 is a multi-touch, slate-format smartphone with eye-tracking ability, increased storage, and a wireless charging option.

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Samsung s3 water damage

when i power on the phone it boots normaly

but when it goes to samsung logo start blinking like you open and close your eyes fast that kind of blink it works fine but screen won't stop blinking super fast .

i cleaned the phone with alcool but no luck

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When I power the phone it doesn't boot and also doesn't charge

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Adrian Zymeri as with any immersion, the importance is to not turn it on, or trying to sync/charge it, as this may increase the likelihood of shortcircuiting any components. Remove the battery, and disassemble it right down to the motherboard . Use this guide to clean your phone. It was written for an iPhone but all the points still pertain to your phone as well. Clean everything with isopropyl alcohol (at least 90%+) and a soft brush, including all connectors and cable ends. Check for any burned or missing components. You may have to repeat this step a couple of times. Once it is cleaned, reassemble it and replace the battery, then reevaluate for any real damage. Your phone could have a damaged backlight circuitry component as well as a shorted LCD and plenty of other things in between. Sometimes posting some images of your board with your question helps others to identify a damaged component. Use this guide for that. Water damage is the hardest to repair since virtually any part can have failed.

iPhone Image

Guide

Repairing iPhone Liquid Damage

Difficulty: Difficult1 - 2 horas

iFixit Image

Guide

Adding images to an existing question

Difficulty: Easy2 - 5 分

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