Step 2. Disconnect the I/O board cable from the I/O board. Remove one screw and then remove the I/O
board.
Figure 10. Remove the I/O board
Screw specifications Number of screws
M2.0 x L3.7 1
Go to
https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement
part:
I/O board
Remove the system board
Make sure the following FRU (or CRU) has been removed.
“Remove the lower case” on page 30
Step 1. Disconnect the battery pack cable from the system board.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Step 2. Detach the main and auxiliary antenna cable connectors. Remove one screw and then remove the
Wi-Fi card.
Chapter 4. Removing a FRU or CRU 35
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