HP Compaq dx6100 ST

To open the computer cover with the Smart Cover Lock engaged:
1. Turn off the computer properly through the operating system,
then turn off any external devices.
2. Disconnect the power cord from the power outlet, and disconnect
any external devices.
3. Remove the computer from the stand and lay the computer on its
side.
4. Use the FailSafe Key to remove the tamper-proof screw that
secures the Smart Cover Lock.
Removing the Smart Cover Lock Screw
5. Remove the computer cover. Refer to “Removing the Computer
Cover.”
To reattach the Smart Cover Lock, secure the lock in place with the
tamper-proof screw.