dropped in water for split second

Your best bet is to:

1. first, remove power (i.e., the battery) if you can
2. remove any excess / obvious / surface water that you can
3. place your device in a sealed device with some kind of desiccant like dried rice for as many days as you can stand, changing the desiccant each day

For more information, please see this very detailed thread:

http://androidforums.com/threads/so...et-what-can-you-do-to-try-and-save-it.815124/​

Cheers and best of luck!