HP EliteBook 820 G1 Maintenance And Service Manual page 82

Before removing the disassembling the computer, follow these steps:
1.
Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
Remove the service cover:
1.
Turn the computer upside down, with the rear toward you.
2. Slide the service cover release latch (1) to gain access to the service cover security screw.
3. Remove the Phillips PM2.0×4.5 security screw (2) (if present).
NOTE:
4. Slide the service cover release latch a second time (3) to release the service cover.
5. Release the service cover (4) by sliding it forward.
6. Remove the service cover (5).
Reverse this procedure to install the service cover.
72 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts
The service cover includes a threaded receptacle for storing the security screw.
ENWW