1100 Palm Rest With Fingerprint Reader, Smart Card Reader, And Speaker - Lenovo ThinkPad T420s Hardware Maintenance Manual

• "1080 Keyboard" on page 80
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
Removal steps of backup battery
When installing:
Attach the backup battery
battery connector is attached firmly.

1100 Palm rest with fingerprint reader, smart card reader, and speaker

For access, remove these FRUs in order:
• "1010 Battery pack" on page 68
• "1080 Keyboard" on page 80
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2
a
in the insulation sheet as shown in the figure below and make sure that the
1
a