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Before removing the I/O board, follow these steps:
1.
Prepare the computer for disassembly (see
2.
Remove the bottom cover (see
3.
Disconnect the battery cable from the system board (see
Remove the I/O board:
1.
Release the WWAN antenna cables and the display tuner cable from the retention clips (1) that are
built into the I/O holder.
2.
Release the zero insertion force (ZIF) connectors (2) the I/O board cable and nano SIM cable are
connected to, and then disconnect the I/O board cable and nano SIM cable from the I/O board.
3.
Remove the four Phillips M2.0 × 4.0 screws (3) that secure the I/O board and I/O holder to
the computer.
4.
Remove the I/O holder (4) from the computer.
5.
Remove the I/O board (5) from the computer.
To replace the I/O board, reverse the removal procedures.
System board
To remove the system board, use these procedures and illustrations.
Table 5-10
System board descriptions and part numbers
Description
Equipped with an AMD Ryzen R7-7735U processor and the Windows 11 operating system for use
only on computer models with WWAN capability
Equipped with an AMD Ryzen R7-7735U processor and a non-Windows operating system for use
only on computer models with WWAN capability
52
Chapter 5 Removal and replacement procedures for authorized service provider parts
Preparation for disassembly on page
Bottom cover on page
39).
Battery on page
41).
Spare part number
N95773-601
N95773-001
39).
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