HP ProBook 455 G3 power button board replacement

Step-by-step HP ProBook 455 G3 power button board replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you need827035-001HP Power button board assembly 827035-001 for the HP ProBook 455 G3
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On this page
  1. Applies to
  2. tools and parts
  3. preparation
  4. replacement
  5. Parts this procedure uses
  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 32–55). 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 ProBook 455 G3. Confirm the exact model on the service label before starting.

HP ProBook 455 G3 Notebook PC power button board replacement. HP prints this procedure on printed page 54 of its maintenance and service guide, and the spare-part table for this part is on printed page 54.

tools and parts

  • Screwdrivers and a non-marking pry tool as HP lists for this procedure
  • Static-safe work surface
  • 827035-001 - Power button board assembly. Source: printed page 54.
  • 828418-001 - Power button board cable (included in Cable Kit). Source: printed page 54.

preparation

Save your work and shut the computer down through the operating system, unplug AC power and every external device, and work on a clean, grounded, ESD-protected surface while sorting each screw by its original location. Handle every cable by its connector and put each one back in its own place during reassembly.

  1. Power the machine down. If you are unsure whether the machine is off or in Hibernation, turn the machine on, and after that shut it down through the operating system. (printed page 32).
  2. Detach every external device wired to the machine. (printed page 32).
  3. Cut the power by pulling the cord out of the wall outlet, and after that unplugging the AC adapter from the machine. (printed page 32).
  4. Take the battery out (the Battery section is on page 32). (printed page 33).
  5. Place the top cover upside-down. (printed page 52).

replacement

  1. Take the following parts out: a. Service doors (the Service doors section is on page 33) b. Optical drive (the Optical drive section is on page 35) c. Hard drive (the Hard drive section is on page 37) d. Keyboard (the Keyboard section is on page 43) e. Top cover (the Top cover section is on page 48) (printed page 54).
  2. Detach the lead from the power button board (1). (printed page 54).
  3. Undo the Phillips PM2.0×3.0 fastener (2) that holds the board to the top cover. (printed page 54).
  4. Raise the right side of board as well as pull board out and to the right to lift it out from under the tab (3). (printed page 55).
  5. Fit the replacement part by working back through the printed removal steps (printed page 55).

Parts this procedure uses

Manufacturer manual

HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-probook-455-g3-power-button-board-replacement-p54

Key facts

HP document part number
824586-001
Model
HP ProBook 455 G3
Release year
2015
Screen size
15.6"
Printed pages
32–55

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