Water damage to Samsung Ativ S.

My Samsung Ativ S got wet in the rain, it was working fine and half way through the next day just stopped altogether. I opened it up to find water had got into the back cover. I have dried it out but to no avail. Is there anything I can do?

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bonsoir comme je peux redémarre le GSM car il montre un code de Error 0x0000428

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