HP ZBook 15 G5 bottom cover replacement

Step-by-step HP ZBook 15 G5 bottom cover replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you needL28709-001HP bottom cover L28709-001 for the HP ZBook 15 G5
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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 41–56). 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 ZBook 15 G5. Confirm the exact model on the service label before starting.

HP ZBook 15 G5 Mobile Workstation bottom cover replacement. HP prints the spare part table for this procedure on printed page 55.

Tools and parts

  • Flat-bladed screwdriver, Magnetic screwdriver and Phillips P0 and P1 screwdrivers
  • Static-safe work surface
  • L28709-001 - Bottom cover. Source: printed page 55.

Preparation

HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 37. 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. Power the machine down. (printed page 41).
  2. Detach the power from the notebook by unplugging the power cord from the computer. (printed page 41).
  3. Detach all external devices from the computer. (printed page 41).
  4. Take out the service door (see that procedure on page 41). (printed page 43).
  5. Detach the battery (see that procedure on page 43). (printed page 44).
  6. Take out the hard drive (see that procedure on page 45). (printed page 55).
  7. Position the computer upside down. (printed page 55).
  8. Take out the screws securing the keyboard (see that procedure on page 53). (printed page 55).
  9. Take out the nine Torx 2.5x6.5 screws that hold the bottom cover to the computer. (printed page 56).
  10. Take out the four Torx 2.5x6.5 screws from the rear border of the bottom cover (2). (printed page 56).
  11. Take out the three Torx 2.5x2.5 screws from the lower cover (2). (printed page 56).
  12. Lift the bottom cover off the computer (3). (printed page 56).
  13. Install the bottom cover by working back through the printed removal steps (printed page 56).

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-zbook-15-g5-bottom-cover-replacement-p55

Key facts

HP document part number
L23753-001
Model
HP ZBook 15 G5
Release year
2018
Screen size
15.6"
Printed pages
41–56

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