Removal steps of the wireless WAN card
Step
Screw (quantity)
Color
Torque
1
M1.6 × L1.85 mm, flat-head, nylon-coated (1)
Black
0.098 Nm
(1.0 kgf-cm)
When installing:
• Before you install a new wireless WAN card, apply a new thermal pad.
• Ensure that you connect the orange cable to the main connector, the blue cable to the auxiliary connector,
the white and grey cable to the M1 connector, and the black and grey cable to the M2 connector.
1090 USB-C sub cards and USB-C sub card cable
Before you replace the USB-C sub cards and USB-C sub card cable, do the following:
1. Disable the built-in battery. See “Disabling the built-in battery” on page 42.
2. Remove the Nano-SIM-card tray. See “Removing the Nano-SIM-card tray” on page 42.
3. Remove the following FRUs:
• “1010 Folio cover set” on page 43
• “1020 Smart glass and adhesive tapes” on page 47
• “1030 Access door” on page 49
• “1040 Support bracket” on page 49
• “1050 System board assembly ” on page 50
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Hardware Maintenance Manual
Summary of Contents for 20RK
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