The mobile dropped in water

muslihah amnani, water damage seems to be one of the most common damage lately. you are not the only one that this happens to. Here is my answer to a few very similar question. The first thing I suggest is that you disassemble the phone using these guides. Then clean the phone with +90% isopropyl alcohol. Use this guide to clean it. Make sure to clean all the connectors and cable ends. After you have everything properly cleaned, replace the battery Reassemble your phone and re-evaluate. If you do not clean your phone, you could get corrosion failure later on. I would also no longer try to do anything with the phone until it is cleaned, you are running risk of further damaging it. Hope this helps, good luck.