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HP ProBook 4430s Notebook PC - Removing and Replacing the Wireless LAN Minicard

Introduction
This document is provided to assist in removing and replacing the wireless LAN minicard for the HP ProBook 4430s 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
Parts required
  note:
Part numbers are subject to change.
The replacement part number will vary depending on the wireless LAN minicard 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
B/G/N WLAN card - Half MiniCard (HMC) combo Malbec
593127-001 (Original)
Yes
B/G/N (1 x 1) WLAN card - Half MiniCard (HMC) combo Tozai
602993-001 (Modified)
Yes
802.11A/B/G/N WLAN + BT RL HMC 2 x 2 RMT
630813-001 (Modified)
Yes
Realtek 8188GN PCIe Half MiniCard (HMC) WiFi adapter - 802.11b/g/n 1 x 1
640926-001 (Original)
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 LAN minicard, click on the link below. Or use the product video listing on the HP Services Media Library (Click here to go to Service Media Library), then select Wireless LAN minicard from the menu on the upper left hand side of the screen.
Click here to view the wireless LAN minicard removal video (right-click on the link to open in a new window/tab).
Wireless LAN minicard 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.
    • Observe all precautions when removing and replacing components
  2. Slide the battery release latches towards the battery icons to disengage the battery.
  3. Remove the battery by lifting it out of the battery bay.
  4. Slide the battery release latches towards the battery icons until the service door disengages from the base enclosure.
  5. Lift the service door and remove it.
      note:
    Make careful note of which wireless antenna cable is connected to each terminal on the wireless LAN minicard for later replacement.
  6. Carefully disconnect the wireless antenna cables from the wireless LAN minicard with a small pair of needle nose pliers or tweezers.
      caution:
    Use care when disconnecting the wireless antenna cables from the wireless LAN mincard. Damaged cables or connectors can degrade notebook performance.
  7. Unroute the wireless LAN antenna cables from the routing clips built into the base enclosure.
  8. Remove the two 3-mm P1 Phillips-head screws that secure the wireless LAN minicard to the system board and allow it to release to the spring tension position.
  9. Grasp the wireless LAN minicard by the edges and pull gently to remove it.
  10. Place the wireless LAN minicard in a static dissipative bag.
Wireless LAN minicard replacement
  1. Grasp the wireless LAN mincard by the edges and remove it from the static dissipative bag.
  2. Align the notch in the wireless LAN mincard with the key in the wireless LAN minicard slot on the system board.
  3. At an angle, gently insert the wireless LAN minicard into the slot on the system board.
  4. Press the wireless LAN mincard down and replace the two 3-mm P1 Phillips-head screws that secure the wireless LAN minicard to the system board.
  5. Route the wireless LAN antenna cables through the routing clips built into the base enclosure.
  6. Reconnect the wireless antenna cables to the wireless LAN minicard.
      caution:
    Use care when connecting the wireless antenna cables to the wireless LAN minicard. Damaged cables or connectors can degrade notebook performance.
  7. Place the service door on the base enclosure.
  8. Slide the service door towards the rear of the notebook until it clicks into place.
  9. Lower the rear edge of the battery into the battery bay.
  10. Lower the front edge of the battery until it clicks into place.

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