Can i fix my blank iphone screen?

I have an iPhone 4s and a few days ago I dropped it in my juice, it started flashing and the screen went off, i've left it to dry since then and i just replaced the battery and it turned on fine. The only problem is that the backlight won't come on so my screen is blank. I need my phone to work because I'm going on holiday next week, it isn't due an upgrade for another month yet and I can't wait that long. Is there something I can do to fix it? I don't want to pay for a new one or to get it fixed, I'm sure there must be something i can do. P. S the only water sensor that is red is the one in the earphone jack, none inside the phone are red. Any suggestions would be much appreciated, thank you.

When your iPhone displays only
white on its screen - not any
icons, not the Apple logo,
nothing else - this is clearly a
problem. There are three steps
you can take to try to fix it.
Restart the iPhone
The first step in any iPhone
troubleshooting process is to
restart the iPhone. Do this by
holding down the hold button at
the top right of the phone until
a red slider appears onscreen.
Slide it to turn the phone off
and, when it's off, turn it back
on again by holding down the
hold button until the Apple logo
appears.
Reset the iPhone
If this doesn't work, try
resetting the iPhone. You do this
by holding both the Home
button and the hold button at
the same time. Do this until the
screen flashes and the Apple
logo appears, indicating that the
phone has restarted.
Restore the iPhone from
Backup
If this doesn't work, try
restoring the iPhone from a
backup of its data. Sometimes
files on the phone get corrupted
and need to be replaced with
older, working versions in order
to fix the problem.
If None of This Works
If you've tried all three of these
steps and the problem still isn't
fixed, you've likely got an issue
that you can't fix. In this case,
give Apple tech support a call or
make an appointment at your
local Apple Store for support.

Not too sure

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