Lenovo ThinkPad T570 User Manual page 136

1. Disable the built-in battery. See "Disabling the built-in battery" on page 107.
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 108.
5. Remove the base cover assembly. See "Replacing the base cover assembly" on page 110.
6. Disconnect the cable from the system board.
7. Pull the tape to remove the hard disk drive.
8. Disconnect the cable from the hard disk drive.
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T570 and P51s User Guide