Updating toshiba portege 4010
Try to tap on the switch a few times to turn on the backlight.
If after tapping on the LCD lid close switch the backlight stays on, you fixed the problem.
Somehow the water got inside the LCD screen and left stains inside the screen.
The water marks were very noticeable on a white background and it was very irritating.
If you have lint or dust inside the screen, probably you’ll find it between the LCD and the background. I was able to remove dust and lint up with a very soft cloth, barely touching the LCD and background surfaces.
After I split the screen I found that the background has a few some kind of optical layers (three transparent sheets) and in my case they were damaged by water.
Carefully unglue the film that covers the circuit board and remove two screws from the board (top circles). There are a lot of latches on all sides of the screen.
If you do something wrong the screen might become completely unusable and you’ll have to buy a new screen. Disconnect the video cable and the inverter board cable.
On this model the inverter board is attached to the screen with two screws.
I was pretty confident because I didn’t really care if I break the screen, I just wanted to know if it’s possible to fix it. Here’s my Dell Latitude D610 notebook with water damaged screen I’m going to take apart. Remove two screws from the front and two screws from both sides.
Warning: the LCD screen can be easily damaged if you open it up. Carefully remove the LCD screen from the cover and place it on the notebook base.