Unlocking The Smart Cover Lock - HP Compaq dc7700 Business PC Removal And Replacement Procedures

12/16/2018 HP Compaq dc7700 Business PC - Removal and Replacement Procedures -- Small Form Factor (SFF) Chassis | HP® Customer Support
6.
Disconnect the power cord from the electrical outlet and then from the computer.
7.
Disconnect all peripheral device cables from the computer.
During disassembly, label each cable as you remove it, noting its position and routing. Keep all screws with the units
NOTE:
removed.
The screws used in the computer are of different thread sizes and lengths; using the wrong screw in an application
 CAUTION:
may damage the unit.

Unlocking the Smart Cover Lock

If you have locked the Smart Cover Lock use Computer Setup to unlock the lock. Refer to the Desktop Management Guide on the Documentation and
Diagnostics CD for more information about the Smart Cover Lock.
If you cannot access Computer Setup to unlock the cover you will need to remove the locking solenoid by using the Smart Cover FailSafe
Key (Spare part number 166527-001 or 166527-002). Once the solenoid has been deactivated or removed the access panel can be
removed.
The Smart Cover FailSafe Key will be needed in any of the following circumstances:
Power outage
Startup failure
Processor or power supply failure
Lost password
To open the computer cover with the Smart Cover Lock engaged:
1.
Prepare the computer for disassembly (
2.
Using the Smart Cover FailSafe Key, remove the tamper-proof screw (1) that secures the Smart Cover Lock to the inside of the chassis.
3.
Push the metal arm that wraps around the air vent grid up and back (2) to free the Smart Cover Lock from the chassis.
4.
Remove the computer cover (
To reattach the Smart Cover Lock:
1.
Install the Smart Cover Lock assembly on the inside of the rear panel with the metal arm (1) wrapped around the air vent grid on the back of the chassis.
2.
Use the supplied tamper-resistant screw (2) to secure the Smart Cover Lock to the chassis.
https://support.hp.com/us-en/product/hp-compaq-dc7700-small-form-factor-pc/3232029/document/c00862331#AbT11
Preparation for Disassembly
Computer Cover
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