5. Route the WWAN antenna cables along the routing channels on the I/O board.
6. Adhere the USH daughter board flexible flat cable on the I/O board (for models shipped with a USH daughter board).
Next steps
1. Install the system board.
2. Install the heat sink.
3. Install the WWAN.
NOTE: This procedure applies only to computers shipped with a WWAN card installed.
4. Install the M.2 2230 solid state drive or M.2 2280 solid state drive, as applicable.
5. Install the battery.
6. Install the base cover.
7. Install the SIM card tray, if applicable.
8. Follow the procedure in after working inside your computer.
Power-button with fingerprint reader
Removing the power button with fingerprint reader
CAUTION: The information in this removal section is intended for authorized service technicians only.
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the sim-card tray, if required.
3. Remove the base cover.
4. Remove the battery.
5. Remove the WWAN.
6. Remove the M.2 2230 solid state drive or M.2 2280 solid state drive, as applicable.
7. Remove the fan.
8. Remove the heat sink.
9. Remove the system board.
10. Remove the I/O board.
About this task
The following image indicates the location of the power button with fingerprint reader and provides a visual representation of
the removal procedure.
Removing and installing Field Replaceable Units (FRUs)
109
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