Lenovo ThinkPad A475 User Manual page 138

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. Remove the base cover assembly. See "Replacing the base cover assembly" on page 105.
6. To remove the M.2 solid-state drive, do the following:
a. Open the film to access the M.2 solid-state drive
b. Remove the screw that secures the M.2 solid-state drive
from the secured position and pivots upward.
c. Carefully remove the M.2 solid-state drive out of the slot
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A475 User Guide
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2
. The M.2 solid-state drive is released
3
.