IPHONE wont switch on

Dropping a switched on cell phone into bleached water will certainly damage the electronics in the cell phone.
You can remove the battery and dry it out, but most likely it is damaged beyond repair.

It might work.
Remove the battery and dry the phone for a few days in a warm dry location. Replace the battery and charge the phone overnight then switch the phone on and see if it works, if not it may not be worth repairing, get a repair quote then you can decide whether to get a new phone.

hi go to settings then general then reset then erase all data etc that will put the phone as new so you can put all your new details

Disconnect the cable.
Hold down the home and power button for 15+ seconds.
When the phone turns off, wait a minute then power it back on with the top button.

If it is still stuck in recovery mode, open itunes, connect the phone, and follow the prompts after it says it detected an iphone in recovery mode.

I'm assuming you've put in the proper password (watch for caps) and that you've tried forgetting the network and adding it back in?

Do you have your router set up to only allow a specific number of connections?

How long ago did it happen? As strange as it sounds, put the phone in a bag of dry rice for a few days and the rice will draw the moisture out. After several days, plug it in to the charger and try to power it on. If that doesnt work, you might have to send it back to apple.

not at this stage there is signs that its circuits are burned badly,

sorry

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take the sim card holder out and blow dry inside the phone for about 10-15 minutes. after that take your phone and put it in a ziploc bag of rice for about 2-3 days. after that your phone should work. i dropped my phone in mop water a few days ago and this worked for me. if you have any other questions or anything email me. [email protected]. good luck and hope this helps.

In order to fix this, you will have to restore your iPhone to its original factory settings. Hopefully you have all of your e-mails/documents backed up somewhere! (all your apps and music should be safe in iTunes.
Plug your phone into the computer and when it tells you that its locked, put the phone into DFU mode by pressing and holing the center button as well as the sleep/wake button for ten seconds. It will then go dark for several minutes and then boot back up.

From knowyourmobile.com:

Forgotten your iPhone Passcode?
If you have forgotten your iPhone's Passcode you will need to restore your phone via iTunes.
But first you have to put your phone into the restore mode which is a slightly fiddly process.
Plug your iPhone into your PC or Mac with the USB cable
Press and hold the power button at the top and then slide to power off the iPhone
Press the power button to power the iPhone on and keep it held while simultaneously pressing the home button
After a few seconds a yellow alert triangle will appear and the iPhone will say it is iPhone Restore Mode.
Open up iTunes and click on the Summary tab
Click on Restore to restore your iPhone. This will reset all your iPhone's setting to the factory defaults, including the Passcode. You should then follow the steps above to activate the Passcode with a memorable number