Removal and replacement procedures for
authorized service provider parts
5
This chapter provides removal and replacement procedures for authorized service provider parts.
IMPORTANT: Only an authorized service provider should access the components described in this chapter.
Accessing these parts can damage the computer or void the warranty.
NOTE: Details about your computer, including model, serial number, product key, and length of warranty,
are on the service tag at the bottom of your computer.
Component replacement procedures
To remove and replace computer components, use the procedures described in this section.
NOTE: HP continually improves and changes product parts. For complete and current information about
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
Make special note of each screw size andlocation during removal andreplacement.
Preparation for disassembly
To prepare to disassemble the computer, use these steps.
See Removal andreplacement procedures preliminary requirements on page 25 for initial safety procedures.
1. Turn o 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. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
Bottom cover
To remove the bottom cover, use this procedure and illustration.
Table 5-1
Bottom cover descriptions and part numbers
Description Spare part number
Bottom cover (WWAN models) N22918-001
Bottom cover (WLAN models) N22919-001
End covers (left and right) N26146-001
Before loosening the bottom cover, prepare the computer for disassembly (see Preparation for disassembly
on page 33).
Removal and replacement procedures for authorized service provider parts
33
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