Dell Latitude 7410 Chromebook Enterprise Service Manual
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Dell Latitude 7410 Chromebook Enterprise Service Manual

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Dell Latitude 7410 Chromebook Enterprise
Service Manual
1
Regulatory Model: P119G / P131G
Regulatory Type: P119G002 / P131G002
August 2020
Rev. A00

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Summary of Contents for Dell Latitude 7410 Chromebook Enterprise

  • Page 1 Dell Latitude 7410 Chromebook Enterprise Service Manual Regulatory Model: P119G / P131G Regulatory Type: P119G002 / P131G002 August 2020 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
  • Page 3 A WARNING indicates a potential for property damage, personal injury, or death. © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 4: Table Of Contents

    Contents Chapter 1: Working on your computer....................6 Safety instructions.................................6 Working inside your computer............................6 After working inside your computer..........................8 Chapter 2: Technology and components................... 9 Display and Stylus Behaviour............................... 9 Touch Screen Behavior..............................9 Stylus Behavior................................9 Keyboard shortcuts................................10 USB Type-C..................................14 USB features..................................
  • Page 5 Basic troubleshooting................................. 58 Power issues.................................. 58 CROSH....................................62 CROSH commands................................63 Chrome commands................................65 Commonly used CROSH command..........................70 Check battery charging status.............................70 Reset Chromebook................................77 Recovery Chromebook............................... 78 Recovering the Chromebook............................78 Chapter 6: Getting help........................81 Contacting Dell..................................81 Contents...

  • Page 6: Chapter 1: Working On Your Computer

    You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that is shipped with the product or at www.dell.com/regulatory_compliance.
  • Page 7 Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.

  • Page 8: After Working Inside Your Computer

    It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.

  • Page 9: Chapter 2: Technology And Components

    User Action Description Positioning To position the screen cursor, move the Pen slightly above the Dell screen without touching the screen surface. To make a selection, press the Pen tip on the display screen. Clicking Tap the display screen once with the Pen tip, or touch the Pen to the screen with enough pressure to register a click.

  • Page 10: Keyboard Shortcuts

    Keyboard shortcuts NOTE: Keyboard characters may differ depending on the keyboard language configuration. Keys used for shortcuts remain the same across all language configurations. Table 3. List of keyboard shortcuts Keys Primary behavior Secondary behavior (Fn+Key) Esc behavior Esc behavior F1 behavior Browser Back F2 behavior...
  • Page 11 Table 3. List of keyboard shortcuts (continued) Keys Primary behavior Secondary behavior (Fn+Key) F10 behavior F10 behavior F12 behavior F12 behavior Changes display layout None (multi monitors setup) Delete None Globe/ Language Key Globe/ Language Key Keyboard shortcut keys Table 4. Shortcut keys Shortcut keys Shortcut Function...
  • Page 12 Table 4. Shortcut keys (continued) Shortcut keys Shortcut Function Ctrl + Alt + Up arrow Home Ctrl + Alt + Down arrow Ctrl + Alt + Right arrow Select next word or letter Ctrl + Alt + Left arrow Select previous word or letter Ctrl + Alt + Z Enable or disable accessibility features if you're not signed in with a Google Account.
  • Page 13 Table 4. Shortcut keys (continued) Shortcut keys Shortcut Function Ctrl + K or Ctrl + E Perform a search. Type a search term after the question mark in the address bar and press Enter. Select the content in the address bar Ctrl + L or Alt + D Ctrl + N Open a new window...

  • Page 14: Usb Type-C

    Table 4. Shortcut keys (continued) Shortcut keys Shortcut Function Shift + Alt + L Place focus on the launcher • Press Tab or the right arrow to focus on the next item in the toolbar • Press Shift+Tab or the left arrow to focus on the previous item in the toolbar •...

  • Page 15: Usb Features

    Alternate Mode USB Type-C is a new connector standard that is very small. It is about a third the size of an old USB Type-A plug. This is a single connector standard that every device should be able to use. USB Type-C ports can support a variety of different protocols using “alternate modes,”...
  • Page 16 Speed Currently, there are 3 speed modes that are defined by the latest USB 3.2 Gen 1 specification. They are Super-Speed, Hi-Speed, and Full- Speed. The new Super-Speed mode has a transfer rate of 4.8 Gbps. While the specification retains Hi-Speed, and Full-Speed USB mode, commonly known as USB 2.0 and 1.1 respectively, the slower modes still operate at 480 Mbps and 12 Mbps respectively and are kept to maintain backward compatibility.
  • Page 17 Compatibility The good news is that USB 3.2 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0. First of all, while USB 3.2 Gen 1 specifies new physical connections and thus new cables to take advantage of the higher speed capability of the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0 contacts in the exact same location as before.

  • Page 18: Chapter 3: Major Components Of Your System

    Major components of your system This chapter details the major components available in the system. Topics: • Major components of your system Major components of your system 1. Base cover 2. Battery 3. Solid-State Drive Thermal plate 4. Solid-State Drive 5.
  • Page 19 11. WWAN Card 12. Fan Assembly 13. Palmrest Antenna Assembly Major components of your system...

  • Page 20: Chapter 4: Disassembly And Reassembly

    Disassembly and reassembly Topics: • MicroSD card • Base cover • Battery • Solid-state drive • WWAN card • Palmrest antenna • Heatsink assembly • Display assembly • Speakers • Power button • System board • Keyboard • Palmrest assembly MicroSD card Removing the microSD card Prerequisites...
  • Page 21 About this task Steps 1. Push the microSD card to release it from the computer. 2. Slide the microSD card out of the computer. Disassembly and reassembly...

  • Page 22: Installing The Microsd Card

    Installing the microSD card About this task Steps 1. Align the microSD card to its slot on the computer. 2. Slide the microSD card into the slot until it clicks into place. Next steps Follow the procedures in After working inside your computer.
  • Page 23 Disassembly and reassembly...
  • Page 24 Steps 1. Loosen the eight captive screws that secure the base cover to the palmrest assembly. 2. Starting from the top-left corner, use a plastic scribe to pry the base cover outwards to release the base cover from the palm-rest assembly and remove it from the system.

  • Page 25: Installing The Base Cover

    Installing the base cover Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the base cover and provide a visual representation of the installation procedure. Disassembly and reassembly...

  • Page 26: Battery

    Steps 1. Align the screw holes on the base cover with the screw holes on the palmrest assembly, and then snap the base cover into place. 2. Tighten the eight captive screws that secure the base cover to the palmrest assembly. Next steps 1.

  • Page 27: Disconnecting The Battery Cable

    If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.

  • Page 28: Removing The Battery

    Steps Re-connect the battery cable by sliding the cable connector into the pull tab connector on the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Removing the battery Prerequisites 1.

  • Page 29: Installing The Battery

    Steps 1. Loosen the four captive screws that secure the battery to the palmrest assembly. 2. Lift and remove the battery from the system. Installing the battery Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the battery and provide a visual representation of the installation procedure.

  • Page 30: Solid-State Drive

    Steps 1. Align the screws on the battery with the screw holes on the palmrest assembly and place the battery. 2. Tighten the four captive screws that secure the battery to the palmrest assembly. Next steps 1. Reconnect the battery cable.

  • Page 31: Installing The 2230 Solid State Drive

    Figure 1. 2230 SSD Steps 1. Remove the single (M2x2) screw that secures the SSD and SSD thermal plate to the system board, slide out the SDD with the thermal plate from the slot on the system board. 2. Remove the thermal plate from over the SSD. NOTE: The thermal plate should be removed with the SSD, since the adhesive is strong and to avoid any damage to the SSD.

  • Page 32: Removing The 2280 Solid State Drive

    Figure 2. 2230 SSD Steps 1. Install the M.2 2230 SSD to the SSD bracket so that the top side of the SSD (with the sticker) is facing up. 2. Place the thermal plate on top of the SSD covering it completely. 3.

  • Page 33: Installing The 2280 Solid State Drive

    About this task The following images indicate the location of the SSD (solid state drive) and provide a visual representation of the removal procedure. Figure 3. 2280 SSD Steps 1. Remove the single (M2x2) screw that secures the SSD and SSD thermal plate to the system board, slide out the SSD with the thermal plate from the slot on the system board.

  • Page 34: Wwan Card

    Figure 4. 2280 SSD Steps NOTE: Install the M.2 2230 SSD to the thermal bracket so that the top side of the SSD (with the sticker) is facing Place the thermal bracket on top of the SSD covering it completely. 2.

  • Page 35: Installing The Wwan Card

    2. Remove the base cover. 3. Disconnect the battery cable. About this task The following images indicate the location of the WWAN card and provides a visual representation of the removal procedure. Steps 1. Remove the single (M2x3) screw securing the WWAN bracket to the WWAN card. 2.

  • Page 36: Palmrest Antenna

    Steps 1. Replace the WWAN card into its slot on the system board. 2. Connect the antenna cables to the WWAN card. NOTE: The black cable connects to the left antenna lead and the white cable connects to the right antenna lead. 3.

  • Page 37: Heatsink Assembly

    3. Disconnect the battery cable. About this task The following images indicate the location of the WLAN antenna and provides a visual representation of the disconnection procedure. Steps Disconnect the two antenna cables from the WLAN module NOTE: Since the WLAN card is soldered onto the system board, it cannot be removed. In case of WLAN failure, the system board needs to be replaced.

  • Page 38: Installing The Heatsink Assembly

    Steps 1. Remove the single (M2x2.5) screw from the WLAN bracket and lift it away from the system. NOTE: The fan cable is routed under the WLAN shield plate. It can only be accessed after the bracket is removed. 2. Disconnect the fan cable from the connector on the system board. 3.

  • Page 39: Display Assembly

    Steps 1. Place the heatsink assembly into the slot in the system board and replaced the five (M2x2.5) screws to secure it to the system board. 2. Reconnect the fan cable to the connector on the system board. 3. Place the WLAN bracket onto the WLAN antennas and replace the single (M2x2.5) screw that secures the shield plate to te system board NOTE: The fan cable must be routed under the shield plate.
  • Page 40 3. Disconnect the battery cable. About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure. Disassembly and reassembly...

  • Page 41: Installing The Display Assembly

    Steps CAUTION: If the system unit is shipped with WWAN card, remove the WWAN bracket and disconnect the antennae cables. Remove the two (M2x2) screws that secures the WWAN bracket to the system board and remove it from the system board. 2.
  • Page 42 Disassembly and reassembly...

  • Page 43: Speakers

    Steps 1. Align and place the display assembly onto the system chassis and fold the hinges inwards. 2. Fold the left hinge back and install the two (M2.5x5) screws to secure it to the chassis. 3. Fold the right hinge back and install the two (M2.5x5) screws to secure it to the chassis. 4.

  • Page 44: Installing The Speaker

    Steps 1. Disconnect the speaker cable from its connector on the system board. 2. Remove the speaker cables from the guide path. 3. Lift and remove the speakers from its slot on the palmrest assembly. Installing the speaker Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the speaker and provide a visual representation of the installation procedure.

  • Page 45: Power Button

    Power button Removing the power button Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the: Base cover Battery WWAN WLAN antenna Heatsink System board NOTE: System board can be disassembled without having to remove the heatsink assembly. About this task The following images indicate the location of the power button and provide a visual representation of the removal procedure.

  • Page 46: Installing The Power Button

    Installing the power button Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the power button and provide a visual representation of the installation procedure. Steps 1.

  • Page 47: System Board

    System board Removing the system board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the: Base cover Battery Solid state drive WLAN antenna Heatsink assembly NOTE: System board can be disassembled without having to remove the heatsink assembly. About this task The following images indicate the location of the system board and provide a visual representation of the removal procedure.
  • Page 48 Disassembly and reassembly...

  • Page 49: Installing The System Board

    Steps 1. Remove the single (M2x2.5) screws securing WWAN shield plate and remove it from the system. 2. Un-thread the wireless antennae cables. 3. Remove the two (M2x2) screws securing the shield plate on the eDP bracket and remove it from the system board. 4.
  • Page 50 Disassembly and reassembly...

  • Page 51: Keyboard

    Steps 1. Align and place the system board into the palmrest assembly, and replace the three (M2x2.5) screw securing the system board to the palmrest assembly. 2. Place the USB Type-C bracket on to the USB C ports. 3. Secure the USB Type-C bracket using the three (M2x5) screws. 4.
  • Page 52 Steps 1. Remove the nineteen (M1.6x2) screws securing the keyboard to the palmrest assembly. 2. Disconnect the keyboard and backlight cable from the touchpad module. NOTE: For models shipped with a carbon-fiber palm rest, there are nineteen (M1.6x2) screws that secure the keyboard plate to the system.

  • Page 53: Installing The Keyboard

    Next steps Remove the two (M2x2) screws to remove the keyboard from the keyboard support plate. Installing the keyboard Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. NOTE: When re-assembling the keyboard, properly seat the keyboard using the positioning pins on the keyboard support plate.

  • Page 54: Palmrest Assembly

    About this task The following images indicate the location of the keyboard and provide a visual representation of the installation procedure. Steps 1. Align the and place the keyboard into its slot in the palmrest assembly. 2. Replace the nineteen (M1.6x2) screws securing the keyboard to the palmrest assembly. Next steps If you are replacing a component, remove the existing component before performing the installation procedure.
  • Page 55 WWAN card Heatsink assembly Display assembly Speakers Power button System board Keyboard NOTE: System board can be disassembled without having to remove the heatsink assembly. About this task The following images indicate the location of the palmrest assembly and provide a visual representation of the removal procedure. Steps Once all the underlying components are removed, you are left with the palmrest assembly.

  • Page 56: Chapter 5: Troubleshooting

    Dell Latitude 7410 Chromebook Enterprise is shipped with SupportAssist onboard diagnostics. The Dell SupportAssist diagnostics perform a complete check of your system hardware. SupportAssist is embedded in the BIOS and is launched by the BIOS internally (from the advanced boot menu). The embedded system diagnostics provide a set of options for particular devices or device groups allowing you to: 1.
  • Page 57 SupportAssist User Interface 1. Upon entering SupportAssist, SupportAssist will launch system scan (quick test) automatically. If you need to test specific components, press <Esc> to abort the system scan. 2. Click the arrow icon to proceed to the Advanced page to test selected components. 3.

  • Page 58: Basic Troubleshooting

    Basic troubleshooting This page contains all the information for Dell Latitude 7410 Chromebook Enterprise basic troubleshooting NOTE: Refer to Google Help Center for the online troubleshooter. NOTE: Resetting the Chromebook, also known as Powerwash, can be attempted before Recovering the Chromebook.
  • Page 59 Table 7. Power issue (continued) Power issues 5. Remove the AC adapter, and turn on with the battery power only. Display issue Table 8. Display issue Display issue Issue Possible solutions If the Chromebook's screen is blank, try the following troubleshooting steps to resolve the issue, checking to see if the screen turns on after each step: 1.
  • Page 60 Table 9. Audio, screen, and camera issues (continued) Audio, screen, and camera issues 1. Check that the camera is not being blocked or covered by a privacy screen or other obstruction. 2. Try using different apps that use the camera. Try a Google+ Hangout or the onboard camera app 3.
  • Page 61 Table 11. Touchpad and hotkeys issues (continued) Touchpad / Hotkeys issues example, if the back button on a web page is grayed, this is because the browser is not aware of a page to move backward 3. Restart the Chrome OS by holding down the power button until the device turns off, and then turn it back on again.

  • Page 62: Crosh

    The Chrome OS does not support ePSA, Dell BIOS, the F12 boot menu, or DellConnect. There are no preboot diagnostics. All troubleshootings must be done inside the OS. Chrome Shell (CROSH) and the Chrome URL commands provide some troubleshooting tools, information, and advanced settings.

  • Page 63: Crosh Commands

    CROSH commands The table below lists the available commands in Chrome Shell (CROSH). Table 13. Help commands Command Purpose exit Exits the CROSH Shell. help Displays this help. help_advanced Displays the help for more advanced commands, which are used for debugging. ping [-c count] [-i interval] [-n] [-s packetsize] [-W waittime] —...
  • Page 64 Table 14. Advanced help command (continued) Command Purpose them. Run this command without arguments to see the current state. rlz < status | enable | disable> Enables or disables RLZ. rollback Attempts to roll back to the previous update cached on your system.

  • Page 65: Chrome Commands

    More "Who am I" type of stuff Create Recovery USB Stick chrome://imageburner/ Google's version of DBAR/DBRM Chrome Flags chrome://flags Experimental features beyond the scope of what Dell supports Memory Troubleshooting chrome://memory View running processes and memory utilization Module Load chrome://conflicts...
  • Page 66 1. chrome://flags : From here you can enable some of the experimental features that are hidden in the Google Chrome browser. Please note that as mentioned on this page, since these are experimental, these might not work as expected and might cause issues. Enable these features, and use it at your own risk.
  • Page 67 4. chrome://extensions: This is also available from the Menu > Tools > Extensions. 5. chrome://bookmarks: This is also available from the Menu > Bookmarks > Bookmark Manager. Short cut key is Ctrl+Shift+O. 6. chrome://history: This is also available from the Menu > History. Short cut key is Ctrl+H. Troubleshooting...
  • Page 68 7. chrome://memory: This will redirect to “chrome://memory-redirect/”. This will display the memory used by the Google Chrome browser. This also displays all the process related to browser with their PID, process name, and the memory it takes. NOTE: Net-internals events viewer and related functionality has been removed. Please use Chrome://net-export to save netlogs and the external Catapult netlog_viewer to view them.
  • Page 69 9. chrome://quota-internals: This gives information about the disk space quote used by the browser, including the breakdown of how much space the individual websites took under temporary files. 10. chrome://sessions: This displays the number of sessions and magic list that are currently running. 11.

  • Page 70: Commonly Used Crosh Command

    Commonly used CROSH command This page contains information about the most commonly used CROSH commands to diagnose the Dell Chromebook 11 (3189)Chromebook 11 (3180). Below are some of the most commonly used CROSH commands to troubleshoot a hardware issue. NOTE: CROSH storage_test_1 and storage_test_2 are not supported on the eMMC storage device.
  • Page 71 5. Type battery_test 1 into CROSH, and then press Enter. 6. Check the result to confirm that the battery is charging. Check battery health Follow the steps to evaluate the health of the Chromebook battery, and check the discharge rate: 1.
  • Page 72 4. Press CTRL + ALT + T to open CROSH. 5. Type battery_test 1 into CROSH, and then press Enter. 6. A screen displays the current battery health and discharge rate. • If the Battery health percentage is greater than 50%, the battery is within the expected wear limits. •...
  • Page 73 Checking memory Follow the steps below to perform a memory check for Chromebook: NOTE: This will approximately take 20 minutes to complete the test, and it also depends on the capacity of the memory. 1. Turn on and sign in to Chromebook. 2.
  • Page 74 5. A diagnostic screen displays the result of the memory test passed without any errors. Example of a memory test failure. Checking network status If you are having trouble connecting to the Internet, use the steps in one or more of the following sections to test the network adapter: Follow the instruction to gather the information about the network and diagnose the network errors.
  • Page 75 1. Turn on and sign in to Chromebook. 2. Open the Chrome browser. 3. Press CTRL + ALT + T to open CROSH. 4. Type network_diag into CROSH, and then press Enter. Troubleshooting...
  • Page 76 5. Wait while CROSH performs a set of network diagnostic tests. A diagnostic screen displays the results of the network adapter health test. 6. The diagnostic test log is saved as a.txt (plain text) file in the Files app. Troubleshooting...

  • Page 77: Reset Chromebook

    7. If the diagnostic test returns a failure message, make sure the Wi-Fi adapter is enabled and connect to a network. Reset Chromebook This page contains all information about resetting Dell Latitude 7410 Chromebook Enterprise. All local user data stored on the Chromebook can be cleared by resetting it to its original factory state (also known as Powerwash).

  • Page 78: Recovery Chromebook

    Recovery Chromebook This page contains information about recovering Dell Latitude 7410 Chrombook Enterprise. Recovering the Chromebook Install a new version of the Chrome operating system on your Chromebook by going through the recovery process. You may want to go through this process if you are having problems updating your Chromebook or if it stops working.
  • Page 79 Table 16. USB flash drive or SD card (continued) Operating System Instructions After the process is complete, you might see an alert saying your USB drive or SD card is unreadable. If this fails, try removing and reinserting your USB drive or SD card. Your USB drive or SD card should now be ready to use for recovery.
  • Page 80 Table 17. Troubleshooting tips (continued) Question Solution You successfully recovered your Chromebook but now you can not After you have completed recovery, you need to format your USB use your USB or SD card with Windows or SD card using the recovery tool. You successfully recovered your Chromebook but now Windows After you have completed recovery, you need to format your USB does not recognize the whole size of the USB or SD card used for...

  • Page 81: Chapter 6: Getting Help

    About this task Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Steps 1.

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