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Dell Latitude 7420 Teardown removal guide for customer replaceable units (CRUS)

Summary: These guides take you step-by-step through the safe removal of the Customer Replaceable Unit (CRU) parts of a Latitude 7420 notebook system. (CRUs are the parts of the system that do not need an engineer to remove or replace.) The guides include pictures referencing what is involved. ...

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Instructions

Table of Contents:

  1. CRU Removal Guide
  2. Removal Instructions

 

Removal Guide

 

If these guides do not cover what you are looking to do, then you will want to reference your System Manual.

The article below provides information about safe practices to consider before working with electrical equipment.


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Removal Instructions

 

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TOOLS

1 Small Phillip's head screwdriver 2 Plastic Scribe
3 Small Flat head screwdriver    
 
Note: Be aware that using a large Phillips or Flat Head screwdriver may result in damage to the head of the screws. This would make their removal impossible without specialty tools, that are not available to our onsite engineers.

 

  1. Pre-Removal instructions before removing the Base Cover:

    1. During installation or removal of any hardware always ensures that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

  2. With the closed laptop sitting upside down and flat to the desk, remove the eight (8) retained screws that secure the base cover to the chassis.

screws

  1. With the closed laptop sitting upside down and flat to the desk, remove the eight (8) retained screws that secure the base cover to the chassis.

base cover

  1. Lift the cover away from the system.

 

  1. Push the micro-SD card to eject it from the slot.

  1. Remove the micro-SD card from the computer.

 

  1. Insert a pin into the release hole to release the SIM card tray.

  2. Push the pin to disengage the lock, and eject the SIM card tray.

  1. Slide the SIM card tray out of the slot on the system.

  1. Slide the SIM card tray out of the slot on the system.

  1. Slide and push the SIM card tray back into the slot.

Note: This is an optional part and must be selected at point of purchase.
 

 

  1. Pre-Removal instructions before removing the Solid State Drive (SSD):

    1. During installation or removal of any hardware always ensures that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets

  2. Remove the two screws (M2x2) that secure the SSD shield and remove the shield from the SSD.

  3. Remove the screw (M2x2) that secures the SSD to the system board.

  1. Slide and remove the solid-state drive from the M.2 slot on the system board.
If you require further assistance, contact technical Support.
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Affected Products

Latitude 7420
Article Properties
Article Number: 000182266
Article Type: How To
Last Modified: 30 Jan 2024
Version:  6
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