HP EliteBook 645 G9 bottom cover replacement

Step-by-step HP EliteBook 645 G9 bottom cover replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you needN00121-001HP bottom cover (base enclosure) N00121-001 for the HP EliteBook 645 G9
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On this page
  1. Applies to
  2. tools and parts
  3. preparation
  4. replacement
  5. Part numbers in our catalog
  6. Manufacturer manual
Source: steps rewritten in our own words (no more than 8 words in a row copied; part numbers, screw sizes and warnings kept as printed) from HP's Maintenance and Service Guide (PDF, printed pages 41). Not bench-tested. We have not performed this repair; keep HP's manual open for its illustrations. Scope restrictions below are part of the guide: do not apply it to other models, generations or configurations. Service manuals are written for trained technicians; work at your own risk.

Labels: DOCUMENTED = taken from HP's manual; PROPOSED = our own joining or ordering of HP's directions, not an HP instruction; UNPERFORMED = a suggested check that has not been carried out.

Applies to

HP EliteBook 645 G9. Confirm the exact model on the service label before starting.

HP EliteBook 645 14 inch G9 Notebook PC bottom cover replacement. HP prints this procedure on printed page 41 of its maintenance and service guide, and the spare-part table for this part is on printed page 40.

tools and parts

  • Tweezers, Nonconductive, nonmarking pry tool and Magnetic Phillips P1 drivers
  • Static-safe work surface
  • N00121-001 - Bottom cover for use in models with a 51 Wh battery. Source: printed page 40.
  • M21370-001 - Bottom cover for use in models with a 42 Wh battery. Source: printed page 40.

preparation

HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 31. Its preparation for disassembly is on printed page 40: power the unit down through the operating system, unplug the power cord and detach every external device before opening it. Work on a grounded, static-safe surface, keep screws grouped by the position they came from, and handle boards and modules by their edges.

replacement

  1. Loosen the five captive Phillips screws that hold the bottom cover to the computer. (printed page 41).
  2. Starting near hinges, use a nonmarking, nonconductive tool to release edges of the bottom cover from the computer. (printed page 41).
  3. Take out the bottom cover from the computer (3). (printed page 41).
  4. Put the bottom cover back by repeating the printed removal moves in the opposite order (printed page 41).

Part numbers in our catalog

Check each part page for its source and variant notes before ordering.

Manufacturer manual

HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-elitebook-645-14-inch-g9-bottom-cover-replacement-p41

Key facts

HP document part number
N03560-002
Model
HP EliteBook 645 G9
Release year
2022
Screen size
14"
Printed pages
41

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