HP ProBook 455 G8 power connector cable replacement

Step-by-step HP ProBook 455 G8 power connector cable replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you needM21725-001HP DC-in connector M21725-001 for the HP ProBook 455 G8
View part & buy links
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 34–48). 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 G8. Confirm the exact model on the service label before starting.

HP ProBook 455 G8 Notebook PC power connector cable replacement. HP prints this procedure on printed page 48 of its maintenance and service guide, and the spare-part table for this part is on printed page 19.

Tools and parts

  • Screwdrivers and a non-marking pry tool as HP lists for this procedure
  • Static-safe work surface
  • M21725-001 - Power connector cable. Source: printed page 47.

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.

Replacement

  1. Get the machine ready for taking apart (the Preparation for disassembly section is on page 32). (printed page 34).
  2. Take the bottom cover off (the Bottom cover section is on page 32). (printed page 34).
  3. Detach the battery lead from the main board (the Battery section is on page 33). (printed page 35).
  4. Take the two Phillips M2.5 × 4.0 fasteners (1) that hold the right display hinge to the machine, and after that turn the hinge off the power connector (2). (printed page 48).
  5. Undo the Phillips M2.0 × 4.0 fastener (3) that holds the power connector to the machine. (printed page 48).
  6. Detach the lead from the main board (4). (printed page 48).
  7. Take the power connector lead from the machine (5). (printed page 48).
  8. Fit the replacement part by working back through the printed removal steps (printed page 48).

Parts this procedure uses

Manufacturer manual

HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-probook-455-g8-power-connector-cable-replacement-p48

Key facts

HP document part number
M11675-001
Model
HP ProBook 455 G8
Release year
2021
Screen size
15.6"
Printed pages
34–48

Related