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Helo, My samsung Galaxy s8plus fell into water and some water gets inside so i turn it off and puts it in rice for 1 week (used hairdryer ).. now i cannot see any water externally. so i decided to turn it on.. i plugged into charger and charged till 40% and swith on . After 10 min the display started to glitch suddenly i turned it off.. then i found the battery has bulged a bit. I tried to turn it on again after some hours but the battery is 0%..Does Battery replacement can fix my phone? Or waste of money. I don’t know what to do. Plz help Thanku

Use these guides to open it up and examine for water damage and replace the battery: Samsung Galaxy S8 Plus Repair Samsung Galaxy S8+ Battery Replacement

If you do it yourself the battery will be less than U.S. 25.00 dollars. It is worth a try if it has already been on for 10 minutes. There is no guarantee but, it is cheaper than a new phone.