1- First of all, you need to pull off the rubbers in front of display to access the screws behind them. You can pull it off with help of an needle or something like that.
2- Probably, you will need to pull off the cover above the keyboard. Usually, there is no screws, but check under the laptop to see if there are some on that zone.
3- Open the wireless card cover and pull off the wires connected to the card. Make a note of the connections before unplug any wire.
4- Unplug the VGA cable of the mainboard.
5- Unscrew the screws of the item 1
6- Pull cover around the display back with care.
7- Unscrew the dysplay of the chassi and replace by a new one.
8- Screw again all the screws and plug in all the cables again
