When you're typing on your Compaq Laptop and the words suddenly stop appearing on the screen, and all the troubleshooting in the world doesn't solve the problem, the time may have come when you need to replace the keyboard. There's no need to panic. The Compaq Laptop Keyboard is very inexpensive to replace.
Turn off the Compaq Presario and remove all power sources, including the battery and AC adapter.
Fold the LCD screen backwards so that it's flat like the keyboard.
Use your flathead screwdriver to lift the piece directly above the keyboard that has the "Power" button and other commands on it. Once it's lifted, you can take it off with your hand.
Remove the screws above the "F5" and "F10" keys with a Phillips-head screwdriver, and put them in a place where they won't be lost.
Lift the Compaq Laptop Keyboard away from the laptop, but don't pull it too hard because it's still attached to the motherboard by a ribbon.
Use your fingers to push out the tab that secures the ribbon to the motherboard and disconnect the ribbon from the computer. The keyboard should now be free from the laptop. Put it to the side and get the replacement keyboard.
Insert the ribbon into the motherboard, and close the tab to secure the ribbon.
Lay the Compaq Laptop Keyboard down in the laptop so that the screw holes line up. Replace the two screws that you removed in Step 4.
Use your hands to replace the piece of the laptop that has the "Power" button on it. Just lay it in place, and secure it by pressing gently with your hands.
Fold up the LCD screen to ensure that everything is connected properly. Turn on your laptop and test the keys on your log-in screen.