Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement
part:
Wi-Fi card
Remove the CMOS battery
Make sure the following FRU (or CRU) has been removed.
“Remove the lower case” on page 34
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. Disconnect the CMOS battery cable from the system board and then remove the CMOS battery.
Figure 17. Remove the CMOS battery
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement
part:
CMOS battery
Remove the memory module
Make sure the following FRU (or CRU) has been removed.
“Remove the lower case” on page 34
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. Remove the memory module shielding.
40
Hardware Maintenance Manual