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This guide will take you step by step through the safe removal of what are considered to be Customer Replaceable Unit (CRU) Parts of a Dell Latitude E7440. Table of Contents: CRU Removal GuideRemoval Instructions 1. Removal Guide CRUs (Customer Replaceable Units) are the parts of the system that shouldn't need an engineer to remove or replace. This guide includes pictures to reference the processes involved. If this guide does not cover the part that you need to remove, then you will need to consult the System Manual. You can find a link to the manual here: www.dell.com/support/manuals The article below provides information on safe practises to take into consideration before working with electrical equipment. Safety precautions when working with electrical equipment Back to Top 2. Removal Instructions Show all | Hide all Recommended Tools 1Small Phillip's head screwdriver2Plastic Scribe3Small 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 speciality tools, that aren't available to our onsite engineers. SD Card Removal Pre-Removal Instructions Before removing the SD Card: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Locate the SD Memory Card slot Press in the SD memory card and release Slide the SD memory card out of the system Battery Pre-Removal Instructions Before removing the Battery: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Locate the Battery release latch Slide the battery release latches into the unlock position Remove the battery from the system SIM Card Removal Pre-Removal Instructions Before removing the SIM Card: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Please remove the Battery Locate the Sim Card slot Push to release the phone SIM from the slot Note: Push the SIM into the slot and it will eject further to be able to remove from the system. Pull out the phone SIM from the slot Bottom Cover Removal Pre-Removal Instructions Before removing the Bottom Cover: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Please remove the Battery Remove the two screws securing the Bottom Cover in place Slide the Bottom Cover towards the front of the system and remove mSATA Card Removal Pre-Removal Instructions Before removing the mSATA Card: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Remove the Battery and Bottom Cover Locate the mSATA card Remove the four screws securing the mSATA harness Lift up and remove the mSATA SSD Disconnect the connector from mSATA SSD Remove single screw securing the mSATA SSD Remove two screws from the top Remove the two screws from the bottom securing the Solid State Drive(SSD) in place Memory Removal Pre-Removal Instructions Before removing the Memory : During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Please remove the Battery and Bottom Cover Locate Memory Gently pry the retention clips away from the memory module Remove the memory module from the system Repeat the Step 3 & 4, if there is another memory module installed in the other slot WLAN WiFi Card Removal Pre-Removal Instructions Before removing the WLAN Wi-Fi Card: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Please remove the Battery and Bottom Cover Locate the Wireless Card Disconnect any antennae that may be connected to the WLAN card Remove the single screw securing the WLAN Card Remove the WLAN card from its slot WWAN Card Removal Pre-Removal Instructions Before removing the WWAN Card: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Please remove the Battery and Bottom Cover Locate the WWAN card Disconnect any antennae that may be connected to the WWAN card Remove the screw that secures the WWAN card to the system Remove the WWAN card from the system Coin-Cell Battery Pre-Removal Instructions Before removing the Coin-Cell Battery: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Please remove the Battery and Bottom Cover Locate the Coin-Cell Battery Pry and remove the coin cell battery from the socket Disconnect the coin cell battery connector and remove Keyboard Trim Pre-Removal Instructions Before removing the Keyboard trim: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Please remove the Battery Locate Keyboard Trim surrounding the keyboard Carefully pry up the keyboard trim starting from the top edge Work your way around the sides of the keyboard trim Remove the keyboard trim from the system Keyboard Pre-Removal Instructions Before removing the Keyboard: During installation or removal of any hardware always ensure all data is backed up properly Disconnect any telephone, network, or USB cables from the computer Disconnect the computer and all attached devices from their electrical outlets Remove the Battery Bottom Cover and Keyboard Trim Turn the system upside down with the base cover removed Remove the two screws at the bottom of the system Lift up the mylar cover Disconnect (1) trackstick, (2) keyboard, and (3) keyboard light cables Remove the three screws securing the keyboard Remove the keyboard If you require further assistance, please contact Technical Support Contact Us