Dell Vostro 2420 (Mid 2012) - Manual (Page 11)

4. Flip the computer around and remove the hinge cover.
Installing the Hinge Cover
1. Install the hinge cover and press on it to secure its connection to the computer.
2. Flip the computer and install the screws that secure the hinge cover.
3. Install the battery.
4. Follow the procedures in After Working Inside Your Computer .
Removing the Keyboard
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the battery.
3. Starting on the right, pry up the keyboard from the computer.
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