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Unplug the AC adapter and remove the battery.
In order to access the inverter board, you need to remove the LCD screen bezel. On most laptops, screws are hidden behind screw seals. Carefully remove the seals with a sharp object and glue them on the LCD bezel so you will not lose them. Remove all screws and mark them somehow so you are not confused when you assemble the notebook back. Some laptops also have screws on the side of the display. Remove screw seals and then remove screws.
Start removing the LCD bezel with all fingers. Carefully wiggle the bezel to release plastic latches. Never use any sharp object during disassemble because you can accidentally damage the screen.
If latches are very tight, you can use a guitar pick to unlock them. Insert the guitar pick between the LCD bezel and cover and carefully move it along the side.
Some notebooks allow you to replace the inverter board without removing the LCD bezel completely. Lift up the bottom part of the bezel and remove the screw securing the inverter board to the LCD cover. This location is very common for the screen inverter. On most laptops you’ll find it under the display bezel below the screen.
Carefully lift up the FL inverter and rotate it a little bit. Unplug cables on both sides. The left side of the inverter board connects to the video cable, the right side to the backlight bulb (CCFL tube) inside the LCD screen. Remove the inverter and replace it with a new one.