Problem with screen replacement - XV6700, PPC-6700 General

I have recently replaced a broken screen of an apache with a new one and when i turn it on the screen turns on and is white, when I look at it side on I can see the devices screen is working but it is faded, e.g the today screen is there but very faded.
I was wondering what could be the problem?

moisture shorted out the screen

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OK so I got it to work.......but the screen has a slight yellow tint to it.....is that how its supposed to look? (I got the screen from ebay)

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I have the same problem as this video

Screen replaced, problem when blocking screen

Bought a screen on ebay, took it to a friend that replaced it soo bad that he even cracked it.
Other than that the screen is ok.
But there is a problem when I block the screen pressing the power button, after pressing it again to resume what I was doing it won't turn on.
I mean, it turns on but with stripes and lines black and white.
Initially is all black, then it turn slowly white. the touch digitizer is working but the lcd has serious problems.
Turning completely off the phone reset this.
Someone can help me find out what it can possibly be?
Some wrong contacts?
Thanks so much
Did you fix it?
My D802 after two years of display replacement, started to perform laggy and I can't unlock the screen once it is locked. I can see a low white light in the background but the display dont turn on.

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