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Removal and replacement procedures
Maintenance and Service Guide 4–21
Top cover
Before removing the top cover, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the battery (see
“Battery” on page 4-8).
5. Remove the following components:
a. SIM (see “SIM” on page 4-9)
b. Hard drive cover (see “Hard drive” on page 4-10)
c. Keyboard (see “Keyboard” on page 4-17)
d. Hinge cover (see “Hinge cover” on page 4-20)
Remove the top cover:
1. Turn the computer upside down, with the front toward you.
2. Remove the following:
1 One small Mylar screw cover. All Mylar screw covers detailed in this section are included in the Rubber Kit,
spare part number RUB-001.
2 Three Torx T8M2.0×8.0 screws.
3 Two large Mylar screw covers. The screw covers detailed in this section are included in the Rubber Kit, spare
part number RUB-001.
4 Two Torx T8M2.0×4.0 screws.
Description Spare part number
Top cover (includes LED board and cable and display alignment guides) 501502-001