Dell Latitude E5550 Owner's Manual page 10

a. base cover
b. battery
3. Perform the following steps:
a. Disconnect the hard-drive cable from its connector on the system board [1] .
b. Remove the screws that secure the hard-drive assembly to the computer [2].
4. Remove the hard-drive assembly from the computer.
5. Pull to release the hard-drive cable from its connector.
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