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HP ProBook 6450b Notebook PC - Removing and Replacing the Wireless WAN Module

Introduction

This document is provided to assist in removing and replacing the wireless WAN module for the HP ProBook 6450b Notebook PC.

Minimum skill level

The End User requires no hardware-specific training to replace the defective part. The End user should have familiarity with system hardware and software requiring repair.

Tools required

  • Small, Phillips-head (P1) screwdriver.
  • Tweezers.

Parts required

note:
Part numbers are subject to change.
The replacement part number will vary depending on the wireless WAN module that is being replaced. If a part is listed as "Yes" under "Requires Return" then the defective part needs to be returned to HP. Click here for more information on returning parts to HP.
Description
Part Number
Requires Return
WWAN (Wireless Wide Area Network) HSPA minicard
531993-001 (Modified)
Yes
note:
For customers in countries/regions with RoHS legislation* (e.g. EU, China, etc.) restricting the use of hazardous substances in electrical equipment. The use of the Original Spare part is regulated by RoHS legislation. If your unit contains a part that is labelled with the Modified Spare number, the Modified Spare must be ordered as the replacement part. If your unit contains a part that is labelled with the Original Spare number, please order the Original Spare as the replacement part. In this case either the Original Spare or the Modified Spare may be shipped which will not affect performance or functionality of the unit.

Summary of instructions

To view a video demonstrating the procedure for removing the wireless WAN module, click on the link below. Or use the product video listing on the HP Services Media Library (Click here to go to HP Services Media Library), then select Wireless WAN module from the menu on the upper left hand side of the screen.
Click here to view the wireless WAN module removal video (right-click on the link to open in a new window/tab).

Wireless WAN module removal

  1. Review the safety considerations before performing the steps listed below by clicking on the following link:
      caution:
    Failure to comply with the precautions could result in damage to your product or loss of data.
  2. note:
    The video shown depicts a different model of the notebook. The same removal and replacement procedures apply to this notebook.
  3. Loosen the two captive P1 Phillips-head screws identified with a wireless icon that secure the wireless module cover to the bottom of the notebook.
  4. Lift the wireless module cover and remove it.
  5. Carefully disconnect the two wireless antenna cables from the wireless WAN module by grasping the connectors with a pair of small needle nose pliers or tweezers.
    note:
    Make careful note of which wireless antenna cable is connected to each terminal on the wireless WAN module for later replacement.
      caution:
    Use care when disconnecting the wireless antenna cables from the wireless WAN module. Damaged cables or connectors can degrade notebook performance.
  6. Remove the two 3 mm P1 Phillips-head screws that secure the wireless WAN module to the system board and allow it to release to the spring tension position.
  7. Grasp the wireless WAN module by the edges and pull gently to remove it.
  8. Place the wireless WAN module in a static dissipative bag.

Wireless WAN module replacement

  1. Grasp the wireless WAN module by its edges and remove it from the static dissipative bag.
  2. Align the notch in the wireless WAN module with the key in the wireless WAN module slot on the system board.
  3. At an angle, gently insert the wireless WAN module into its slot on the system board.
  4. Press the wireless WAN module down and replace the two 3 mm P1 Phillips-head screws that secure the wireless WAN module to the system board.
  5. Reconnect the two wireless antenna cables to the wireless WAN module.
      caution:
    Use care when connecting the wireless antenna cables to the wireless WAN module. Damaged cables or connectors can degrade notebook performance.
  6. Toe the wireless module cover into the base enclosure and lower it into position.
  7. Tighten the two captive P1 Phillips-head screws identified with a wireless icon that secure the wireless module cover to the bottom of the notebook.

Parts return


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