NOTE: This step applies only to computers shipped with a USH daughter-board installed.
11. Adhere the LED daughter-board flexible flat cable to the back of the keyboard.
Next steps
1. Install the I/O daughter-board.
2. Install the system board.
3. Install the thermal module.
4. Install the speakers.
5. Install the audio daughter-board.
6. Install the 3-cell battery or the 4-cell battery, whichever applicable.
7. Install the 4G WWAN card or the 5G WWAN card, whichever applicable.
NOTE: This procedure applies only to computers shipped with a WWAN card installed.
8. Install the M.2 2230 solid-state drive or the M.2 2280 solid-state drive, whichever applicable.
9. Install the base cover.
10. Install the microSIM-card tray.
11. Follow the procedure in After working inside your computer.
Palm-rest assembly
Removing the palm-rest assembly
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the microSIM-card tray.
3. Remove the base cover.
4. Remove the M.2 2230 solid-state drive or the M.2 2280 solid-state drive, whichever applicable.
5. Remove the 4G WWAN card or the 5G WWAN card, whichever applicable.
NOTE: This procedure applies only to computers shipped with a WWAN card installed.
6. Remove the 3-cell battery or the 4-cell battery, whichever applicable.
7. Remove the thermal module.
8. Remove the WLAN-antenna module, if applicable.
NOTE:
This procedure applies only to computers shipped with a WLAN-antenna module installed on the palm-rest and
keyboard assembly.
9. Remove the display assembly.
10. Remove the audio daughter-board.
11. Remove the speakers.
12. Remove the system board.
13. Remove the I/O daughter-board.
14. Remove the power button with optional fingerprint reader.
15. Remove the keyboard.
About this task
NOTE:
The palm-rest assembly cannot be further disassembled once all the pre-removal parts procedures are completed. If
the keyboard is malfunctioning and is required to be replaced, replace the entire palm-rest assembly.
The image below shows the palm-rest assembly after the pre-removal parts procedures have been performed for any palm-rest
assembly replacement.
Removing and installing components
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