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HP 620 Notebook PC - Removing and Replacing the Bottom Door

Introduction
This document is provided to assist in removing and replacing the bottom door for the HP 620 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) screwdrivers.
Parts required
  note:
Part numbers are subject to change.
The replacement part number will vary depending on the bottom door that is being replaced. If a part is listed as "Yes" under "Requires return" then the defective part needs to be returned to HP.
Description
Part number
Requires return
Service door - For use on models with 15.6-inch displays
605785-001 (Modified)
No
Service door - For use with 13.3-inch and 14.0-inch models
605784-001 (Modified)
No
  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 bottom door, click on the link below. Or use the product video listing on the HP Services Media Library (Click here to go to HP Service Media Library), then select Bottom door from the menu on the upper left hand side of the screen.
Click here to view the bottom door removal video (right-click on the link to open in a new window/tab).
Bottom door 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. Loosen the four captive P1 Phillips-head screws that secure the bottom door to the base enclosure.
  3. Slide the bottom door toward the front of the notebook.
  4. Lift the bottom door and remove it from the base enclosure.
Bottom door replacement
  1. Align the tabs on the bottom door with the cut outs in the base enclosure and place the bottom door onto the base enclosure.
  2. Slide the bottom door toward the rear of the notebook.
  3. Tighten the four captive P1 Phillips-head screws that secure the bottom door to the base enclosure.

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