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Go to
https://support.lenovo.com/partslookup
replacement parts:
I/O board
I/O board mylar
Remove the system board and the I/O board cable
Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 26
"Remove the battery pack and battery pack cable" on page 27
"Remove the solid-state drive (SSD) plate" on page 28
"Remove the solid-state drive (SSD)" on page 29
"Remove the Wi-Fi card" on page 29
"Remove the Type-C bracket" on page 30
"Remove the heat sink" on page 31
"Remove the fans" on page 32
Step 1.
Remove two screws and then open the hinge.
Figure 21. Open the hinge
Screw specifications
M2.5 x L5
Step 2.
Peel back the I/O board mylar.
36
Hardware Maintenance Manual
to look up the Lenovo part numbers of the following
Number of screws
2
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