Lenovo ThinkPad A475 User Manual page 124

Notes:
• Depending on the model, your computer might look slightly different from the illustrations in this topic.
• There might be a risk of short circuits if you remove the base cover assembly in the following situations:
– When your computer has the removable battery installed
– When your computer is connected to ac power
Besides, the computer will not start after you reinstall the base cover assembly. To start the computer,
disconnect the ac power adapter and then reconnect it to the computer.
To replace the base cover assembly, do the following:
1. Disable the built-in battery. See "Disabling the built-in battery" on page 102.
2. Ensure that the computer is turned off and disconnected from ac power and all cables.
3. Close the computer display and turn the computer over.
4. Remove the removable battery. See "Replacing the removable battery" on page 102.
5. Loosen the screws that secure the base cover assembly as shown.
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A475 User Guide