Top cover
Description Spare part number
Top cover for use in models with UMA graphics memory L28268-001
Top cover for use in models with discrete graphics memory L28269-001
Before removing the top cover, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Place the computer in “Battery Safe mode” (Battery Safe mode on page 31).
3. Disconnect all external devices connected to the computer.
4. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
5. Remove the following components:
a. Service door (Service doors on page 32).
b. Keyboard (Keyboard on page 40)
Remove the top cover:
1. Position the computer upside-down with the front toward you.
2. Remove the seven Torx T8 2.5×6.0 screws from around the edges of the computer.
3. Position the computer upright and open it as far as possible.
4. Disconnect the TouchPad cable (1) and the ngerprint reader cable (2) from the ZIF connectors under
the keyboard.
Component replacement procedures 47
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