Dell Latitude 5550 Owners Manual - Page 44

Recommended tools, Screw list

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system will ask for the recovery key on each reboot. If the recovery key is not known, this can result in data loss or an unnecessary operating system reinstall. For more information about this subject, see Knowledge Article: updating the BIOS on Dell systems with BitLocker enabled. The installation of the following components triggers BitLocker: ● Hard disk drive or solid-state drive ● System board Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0/#1 ● Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, and the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced. NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surfaces when replacing a component. NOTE: Screw color may vary with the configuration ordered. Table 37. Screw list Component Battery Screw type M2x4 (captive screw) Quantity 5 Screw image Wireless card M2x3 1 5G WWAN bracket M2x3 1 5G WWAN thermal shield M2x3 2 M.2 2230 solid state drive in M2x3 1 Slot 1 and Slot 2 Solid state drive thermal shield M2x3 2 in Slot 2 Assembly-inner frame M2x3 12 Touchpad M2x2.5 5 System fan M2x4 2 Heat sink M2x4 1 44 Working inside your computer

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system will ask for the recovery key on each reboot. If the recovery key is not known, this can result in data loss
or an unnecessary operating system reinstall. For more information about this subject, see Knowledge Article:
updating the BIOS on Dell systems with BitLocker enabled
.
The installation of the following components triggers BitLocker:
●
Hard disk drive or solid-state drive
●
System board
Recommended tools
The procedures in this document may require the following tools:
●
Phillips screwdriver #0/#1
●
Plastic scribe
Screw list
NOTE:
When removing screws from a component, it is recommended to note the screw type, and the quantity of screws,
and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is
restored when the component is replaced.
NOTE:
Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surfaces when
replacing a component.
NOTE:
Screw color may vary with the configuration ordered.
Table 37. Screw list 
Component
Screw type
Quantity
Screw image
Battery
M2x4 (captive screw)
5
Wireless card
M2x3
1
5G WWAN bracket
M2x3
1
5G WWAN thermal shield
M2x3
2
M.2 2230 solid state drive in
Slot 1 and Slot 2
M2x3
1
Solid state drive thermal shield
in Slot 2
M2x3
2
Assembly-inner frame
M2x3
12
Touchpad
M2x2.5
5
System fan
M2x4
2
Heat sink
M2x4
1
44
Working inside your computer