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Bottom case HP ProBook 440 G6 L44558-001
The HP L44558-001 bottom case is a replacement lower housing specifically shaped for the ProBook 440 G6. It serves as the external base of the laptop, providing a rigid platform that protects internal components such as the motherboard, battery, cooling system and connectors. The part restores the device's original mounting points, vent openings and service access, enabling straightforward reassembly and preserving the laptop's external appearance.
This bottom case is made to match the original factory dimensions and mounting locations for the ProBook 440 G6, ensuring accurate alignment with screws, ports and ventilation slots. The material offers impact resistance and a stable mounting surface for internal components. Using a correct-fit replacement reduces the risk of loose connections, improves heat dissipation alignment with the cooling system, and helps maintain the laptop’s aesthetic condition after repairs.
Power off the laptop and remove the battery if it is removable. Place the laptop on a static-free surface and detach the existing bottom case by unscrewing all visible screws and carefully releasing plastic clips along the perimeter. Transfer any internal components or brackets that are mounted to the old housing to the replacement part, aligning screw posts and connector openings. Refit the new bottom case onto the chassis, secure all screws to the correct torque by hand, and reinsert the battery before powering on to verify proper fit and operation.
Use appropriate ESD protection when handling internal components. Inspect screw posts and clip locations during installation to avoid overtightening screws. If ventilation openings were blocked by debris, clean internal fans and vents before installing the new bottom case to maintain optimal cooling performance.
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