Did you ever leave it in your pocket and run it through the washing machine?
Did you ever drenched it in the heavy rain?
It usually means you have to replace your phone, but sometimes if you're fast, you can save the phone! It's not being wet that kills a cell phone, it's being on and wet at the same time. This can short-circuit your mobile and do harm. If you're able to turn your phone off before it affects, you may well be able to save your drowned phone!
10 important steps to save your mobile phone:
1. Get it out of the water as soon as possible. The plastic covers on cell phones are fairly tight, but water can enter the phone in a short period of time, perhaps only 20 seconds or less. Grab your phone quickly! If you can't get to it in time, your best bet is to remove the battery while it is still under water. Water helps dissipate heat from shorts that can damage the phone, so most damage occurs when the inside of the phone is wet and connected to a power source.
2. Don't panic. Your phone will probably not be too damaged if you take it out of the water right away.
3. Remove the battery. This is one of the most important steps. Don't take time to think about it; electricity and water do not mix. Cutting power to your phone is a crucial first step in saving it.
4. Remove the SIM card if you have a GSM carrier, . Some or all of your valuable contacts (along with other data) could be stored on your SIM. To some people, this could be more worth saving than the phone itself.
5. Dry your phone. You can put it in a bag of rice. Obviously you need to remove as much of the water as soon as possible, so you can save it from getting into the phone. Shake it out without dropping it, then use a towel or paper towel to gently remove as much of the remaining water as possible. Dry the excess moisture by hand.
Remove any covers and external connectors to open up as many gaps, slots, and crevices in the phone as possible.
6. Use a vacuum cleaner if possible.
Do not use a hair dryer (even on a "cold" mode) to dry out the phone, as this may force moisture further into the small components and likely melt them, deep inside the phone. Using a hairdryer might be a temporary fix, but this will eventually cause component failure inside the phone. Instead, remove all residual moisture by drawing it away with a vacuum cleaner held over the affected areas for up to 20 minutes in each accessible area. This is the fastest method and can completely dry out your phone and get it working in 30 minutes.
7. Use a substance with a high affinity for water to help draw out moisture. Leave the phone in a bowl or bag of uncooked rice overnight. The rice would absorb any remaining moisture. Turn the phone to a different position every hour until you go to sleep. This will allow any water left inside to run down and hopefully find an opening to escape.
8. Let the phone sit on absorbent towels, napkin, or other paper. Remember that the goal is to evacuate all the moisture and humidity, not to trap it or add even more. Check the absorbent material every hour for 4 to 6 hours. If moisture is evident, repeat the vacuuming step and desiccant steps.
9. Test your phone. After you have waited a day or so, make sure everything is clean and looks dry, and re-attach the battery to the phone. Try turning it on. If your phone still does not work, try plugging it into its charger without the battery. If this works, you need a new battery. If not, try taking your cell phone to an authorized dealer. Sometimes they can fix it. Don't try to hide the fact that it has been wet. There are internal indicators that prove moisture.
10. Take the phone apart if your phone doesn't turn on at all. If you feel comfortable doing this, try taking it apart. First, make sure that you have ALL the right parts and know exactly where they go. Be sure to put everything back in its proper place once finished. As you're disassembling it, pat each individual part dry with a small towel and use the vacuum cleaner once more on the parts.
11. If this and all do not work, go to the professionals.