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Dell P98G005 Service Manual

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Dell Latitude 5400 Chrome
Service Manual
Regulatory Model: P98G
Regulatory Type: P98G005

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Summary of Contents for Dell P98G005

  • Page 1 Dell Latitude 5400 Chrome Service Manual Regulatory Model: P98G Regulatory Type: P98G005...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2019 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: Table Of Contents

    Contents 1 Working on your computer......................5 Safety instructions................................5 Before working inside your computer........................... 5 Safety precautions................................6 Electrostatic discharge—ESD protection........................6 ESD field service kit ................................ 7 Transporting sensitive components..........................7 After working inside your computer..........................8 Storing Chrome device for long term — best practices....................8 2 Removing and installing components.....................
  • Page 4 Commonly used CROSH command..........................111 Check battery charging status.............................111 Recovery Chromebook..............................118 Recovering the Chromebook............................118 Reset Chromebook................................120 LCD Built-in Self Test ............................... 122 Diagnostic LEDs................................. 123 Diagnostics..................................124 Validation Tools ................................128 4 Getting help and contacting Dell....................135 Contents...

  • Page 5: Working On Your Computer

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 6: Safety Precautions

    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 For this reason, some previously approved methods of handling parts are no longer applicable.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 7: Esd Field Service Kit

    Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.

  • Page 8: After Working Inside Your Computer

    4. Keep the load close. The closer it is to your spine, the less force it exerts on your back. 5. Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your body and back.

  • Page 9: Removing And Installing Components

    The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4. Screw List This table shows the screw list and the images for the Dell Latitude 5300 2-in-1 Chrome , for different components. Table 1. Screw Size List...

  • Page 10: Disassembly And Reassembly

    Component Screw type Quantity Image Touchpad button board M2x3 Power adapter port bracket M2x4 Memory module frame M2x3 System board M2.5x4 Keyboard support bracket M2x2 Keyboard M2x2 Disassembly and reassembly MicroSD card Removing the microSD card Prerequisites 1. Follow the procedure in Before working inside your computer. Steps 1.
  • Page 11 Installing the microSD card Steps 1. Align the microSD card to its slot on the computer [1]. 2. Slide the microSD card into the slot until it clicks into place [2]. Removing and installing components...

  • Page 12: Base Cover

    3. Follow the procedures in After working inside your computer. Base cover Removing the base cover Prerequisites 1. Follow the procedure in before working with your computer. 2. Remove the microSD card. Steps 1. Loosen the eight captive screws [1]. Removing and installing components...
  • Page 13 2. Using a plastic scribe [1], pry the base cover from the top-left corner and continue to work on the sides to open the base cover [2]. Removing and installing components...
  • Page 14 3. Lift and remove the base cover away from the computer. Installing the base cover Steps 1. Align and place the base cover on the computer. Removing and installing components...
  • Page 15 2. Press the edges and sides of the base cover until it snaps into place. Removing and installing components...
  • Page 16 3. Tighten the eight captive screws to secure the base cover to the computer. Removing and installing components...

  • Page 17: Battery

    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 18 3. Loosen the single captive screw that secures the battery to the palmrest [1]. Slide the battery inward and lift the battery away from the palmrest. Removing and installing components...
  • Page 19 Installing the battery Steps 1. Align and slide the battery on the palmrest [1]. 2. Tighten the single captive screw to secure the battery to the palmrest [2]. Removing and installing components...
  • Page 20 3. Connect the battery cable to the connector on the system board . Removing and installing components...

  • Page 21: Wlan Card

    Next steps 1. Install the base cover. 2. Install the microSD card. 3. Follow the procedure in After working on your computer. WLAN card Removing the WLAN card Prerequisites 1. Follow the procedure in before working with your computer. 2. Remove the microSD card.
  • Page 22 Remove WLAN card Installing the WLAN card About this task CAUTION: To avoid damage to the WLAN card, do not place any cables under it. Steps 1. Insert the WLAN card into the connector on the system board [1]. 2. Connect the WLAN antenna cables to the connectors on the WLAN card [2]. 3.

  • Page 23: Wwan Card

    Next steps 1. Install the base cover. 2. Install the microSD card. 3. Follow the procedure in After working on your computer. WWAN card Removing the WWAN card Prerequisites 1. Follow the procedure in before working with your computer. 2. Remove the microSD card.
  • Page 24 Installing the WWAN card About this task CAUTION: To avoid damage to the WWAN card, do not place any cables under it. Steps 1. Insert the WWAN card into the connector on the system board [1]. 2. Connect the WWAN antenna cables to the connectors on the WWAN card [2]. 3.

  • Page 25: Coin-Cell Battery

    Next steps 1. Install the battery. 2. Install the base cover. 3. Install the microSD card. 4. Follow the procedure in After working on your computer. Coin-cell battery Removing the coin-cell battery Prerequisites 1. Follow the procedure in before working with your computer.
  • Page 26 3. Lift the coin cell battery from the system board [2]. Installing the coin-cell battery Steps 1. Turn the system board and connect the coin cell battery cable to the connector on the system board. 2. Place the coin cell on the system board [1]. 3.

  • Page 27: Memory Modules

    Next steps 1. Install the DC-in. 2. Install the memory module. 3. Install the WLAN. 4. Install the WWAN. 5. Install the battery. 6. Install the base cover. 7. Install the microSD card. 8. Follow the procedure in After working on your computer.
  • Page 28 Installing the memory module Steps 1. Align the notch on the memory module with the tab on the memory-module slot. 2. Slide the memory module firmly into the slot at an angle [1]. 3. Press the memory module down until the clips secure it [2]. NOTE: If you do not hear the click, remove the memory module and reinstall it.

  • Page 29: Dc-In Port

    Next steps 1. Install the battery. 2. Install the base cover. 3. Install the microSD card. 4. Follow the procedure in After working on your computer. DC-in port Removing the DC-in port Prerequisites 1. Follow the procedure in before working with your computer.
  • Page 30 2. Disconnect the DC-in port cable from the connector on the system board and remove the DC-in port from the computer [1, 2]. Removing and installing components...
  • Page 31 Installing the DC-in port Steps 1. Place the DC-in port to its slot on the computer [1]. 2. Connect the DC-in port cable to the connector on the system board [2]. Removing and installing components...
  • Page 32 3. Place the Type-C bracket on its slot on the computer [1]. 4. Replace the two (M2x4) and (M2x5) screws to secure the Type-C bracket to the palmrest [2]. Removing and installing components...

  • Page 33: Solid State Drive

    Next steps 1. Install the battery. 2. Install the base cover. 3. Install the microSD card. 4. Follow the procedure in After working on your computer. Solid state drive Removing the M.2 SSD Prerequisites 1. Follow the procedure in before working with your computer.
  • Page 34 3. Lift the M.2 SSD away from the computer and remove the SSD of the SSD thermal plate Installing the M.2 SSD Steps 1. Place the M.2 SSD into the slot on the palmrest [1]. 2. Align and place the SSD support bracket above the M.2 SSD [2]. 3.

  • Page 35: Solid State Drive Bracket

    Next steps 1. Install the battery. 2. Install the base cover. 3. Install the microSD card. 4. Follow the procedure in After working on your computer. Solid state drive bracket Removing the solid state drive bracket Prerequisites 1. Follow the procedure in before working with your computer.
  • Page 36 Installing the solid state drive bracket Steps 1. Align the bracket and insert it into the slot on the palmrest [1]. 2. Replace the single (M2x3) screw to secure the bracket to the palmrest [2]. Removing and installing components...

  • Page 37: Inner Frame

    Next steps 1. Install the battery. 2. Install the base cover. 3. Install the microSD card. 4. Follow the procedure in After working on your computer. Inner frame Removing the inner frame Prerequisites 1. Follow the procedure in before working with your computer.
  • Page 38 2. Remove the four five (M2x5) screws that secure the inner frame to the system board [1]. 3. Remove the six (M2x3) screws that secure the inner frame to the system chassis [2]. 4. Lift the inner frame away from the system chassis [3]. Removing and installing components...
  • Page 39 Installing the inner frame Steps 1. Align and place the inner frame on the system chassis [1]. 2. Replace the six (M2x3) screws to secure the inner frame to the system chassis [2]. 3. Replace the three (M2x5) screws to secure the inner frame to the system board [3]. Removing and installing components...
  • Page 40 4. Reroute the WLAN antenna cables. Removing and installing components...

  • Page 41: Touchpad Buttons

    Install inner frame 1 Next steps 1. Install the coin cell battery. 2. Install the DC-in. 3. Install the memory module. 4. Install the WLAN. 5. Install the WWAN. 6. Install the battery. 7. Install the base cover. 8. Install the microSD card.
  • Page 42 10. Remove the Inner frame. Steps 1. Open the latch and disconnect the touchpad button board cable from the connector on the touchpad board [1] . 2. Peel out the speaker cable tapes securing the touchpad buttons [2]. 3. Remove the two (M2x3) screws that secure the touchpad button bracket to the palmrest [1]. 4.
  • Page 43 Installing the touchpad button board Steps 1. Place the touchpad button board into the slot on the palmrest [1]. 2. Replace the two (M2x3) screws to secure the touchpad button board to the palmrest [2]. Removing and installing components...
  • Page 44 3. Adhere the speaker cable tapes securing the touchpad buttons [2]. 4. Open the latch and fix the touchpad button board cable to the connector on the touchpad board [1] Removing and installing components...

  • Page 45: Led Board

    Next steps 1. Install the Inner frame. 2. Install the coin cell battery. 3. Install the DC-in. 4. Install the memory module. 5. Install the WLAN. 6. Install the WWAN. 7. Install the battery. 8. Install the base cover. 9. Install the microSD card.
  • Page 46 9. Remove the Coin cell battery. 10. Remove the Inner frame. Steps 1. Disconnect and peel the USH daughter board Flexible Flat Cable (FFC) from the USH daughter board [1, 2]. 2. Disconnect the LED board cable from the connector on the system board. 3.
  • Page 47 Remove LED 1 Installing the LED board Steps 1. Place the LED board and align the screw hole on the LED board with the screw hole on the palmrest [1]. 2. Replace the single (M2x2.5) screw to secure the LED board to the palmrest [2]. Removing and installing components...
  • Page 48 3. Connect the LED board cable to the connector on the system board and route the LED board cable [1] 4. Connect and adhere the USH daughter board Flexible Flat Cable (FFC) from the USH daughter board. Removing and installing components...

  • Page 49: Speakers

    Next steps 1. Install the Inner frame. 2. Install the coin cell battery. 3. Install the DC-in. 4. Install the memory module. 5. Install the WLAN. 6. Install the WWAN. 7. Install the battery. 8. Install the base cover. 9. Install the microSD card.
  • Page 50 9. Remove the Coin cell battery. 10. Remove the Inner frame. Steps 1. Disconnect the speaker cable from the connector on the system board [1]. 2. Peel the adhesive tape that secures the speaker cable to the palmrest [2]. 3. Disconnect the touchpad cable from the connector on the daughter board [3]. 4.
  • Page 51 5. Lift and remove the speakers away from the palmrest. Removing and installing components...
  • Page 52 Installing the speakers Steps 1. Using the alignment posts and rubber grommets, place the speakers in the slots on the palmrest. Install Speakers 2. Route the speaker cable through the routing guides. Removing and installing components...
  • Page 53 3. Affix the adhesive tape to secure speaker cable to the palmrest [1, 2]. 4. Connect the speaker cable to the connector on the system board [3]. Removing and installing components...

  • Page 54: Heatsink Assembly

    Install Speakers 2 Next steps 1. Install the Inner frame. 2. Install the coin cell battery. 3. Install the DC-in. 4. Install the memory module. 5. Install the WLAN. 6. Install the WWAN. 7. Install the battery. 8. Install the base cover.
  • Page 55 9. Remove the Coin cell battery. 10. Remove the Inner frame. Steps 1. Disconnect the system fan cable from the connector on the system board. 2. Remove the four (M2x3) screws that secure the heatsink assembly to the system board [1]. Installing the heatsink assembly Steps 1.

  • Page 56: System Fan

    Next steps 1. Install the Inner frame. 2. Install the coin cell battery. 3. Install the DC-in. 4. Install the memory module. 5. Install the WLAN. 6. Install the WWAN. 7. Install the battery. 8. Install the base cover. 9. Install the microSD card.
  • Page 57 5. Remove the WWAN. 6. Remove the WLAN. 7. Remove the memory module. 8. Remove the DC-in port. 9. Remove the Coin cell battery. 10. Remove the Inner frame. Steps 1. Disconnect the system fan cable from the connector on the system board. 2.
  • Page 58 Installing the system fan Steps 1. Place and align the screw holes on the system fan with the screw holes on to the palmrest [1]. 2. Replace the two (M2x5) screws to secure the system fan to the palmrest [2]. Removing and installing components...
  • Page 59 3. Connect the system fan cable to the connector on the system board. Removing and installing components...

  • Page 60: System Board

    Next steps 1. Install the Inner frame. 2. Install the coin cell battery. 3. Install the DC-in. 4. Install the memory module. 5. Install the WLAN. 6. Install the WWAN. 7. Install the battery. 8. Install the base cover. 9. Install the microSD card.
  • Page 61 9. Remove the Coin cell battery. 10. Remove the Inner frame. 11. Remove the heatsink. 12. Remove the system fan. Steps 1. Peel the adhesive tape and disconnect the touch screen cable from the connector on the system board [1]. 2.
  • Page 62 9. Remove the two (M2.5x4) screws that secures the system board to the palmrest [1]. Removing and installing components...
  • Page 63 Installing the system board Steps 1. Align and place the system board to the palmrest [1]. 2. Replace the two (M2.5x4) screws to secure the system board to the palmrest [2]. Removing and installing components...
  • Page 64 3. Connect the following cables: a) Speaker cable [2]. b) LED board cable [1]. c) touchpad cable [3]. Removing and installing components...
  • Page 65 4. Connect the eDP cable to the connector on the system board and adhere the adhesive tape [1]. 5. Replace the eDP cable bracket on the eDP cable connector on the system board [2]. 6. Replace the single (M2x4) screw that secures the eDP cable bracket to the system board [3, 4]. Removing and installing components...

  • Page 66: Keyboard

    Next steps 1. Install the System fan. 2. Install the Heatsink. 3. Install the Inner frame. 4. Install the coin cell battery. 5. Install the DC-in. 6. Install the memory module. 7. Install the WLAN. 8. Install the WWAN. 9. Install the battery. 10.
  • Page 67 3. Remove the base cover. 4. Remove the battery. 5. Remove the WWAN. 6. Remove the WLAN. 7. Remove the memory module. 8. Remove the DC-in port. 9. Remove the Coin cell battery. Steps 1. Lift the latch and disconnect the backlit cable and the keyboard cable from the connectors on the touchpad. 2.
  • Page 68 Installing the keyboard Steps 1. Align and place the keyboard on the palmrest [1]. 2. Replace the 18 (M2x2.5) screws to secure the keyboard to the palmrest [2]. Removing and installing components...
  • Page 69 3. Connect the backlit cable and the keyboard cable to the connectors on the touchpad. Removing and installing components...

  • Page 70: Keyboard Bracket

    4. Adhere the adhesive tape securing the keyboard and the smartcard board. Next steps 1. Install the coin cell battery. 2. Install the DC-in. 3. Install the memory module. 4. Install the WLAN. 5. Install the WWAN. 6. Install the battery. 7.

  • Page 71: Power Button

    9. Remove the Coin cell battery. 10. Remove the Inner frame. 11. Remove the heatsink. 12. Remove the system fan. 13. Remove the speaker. 14. Remove the board. 15. Remove the system board. 16. Remove the keyboard. Steps 1. Remove the six (M2x2) screws that secure the keyboard to the keyboard bracket [1]. 2.
  • Page 72 11. Remove the heatsink. 12. Remove the system fan. 13. Remove the speaker. 14. Remove the board. 15. Remove the system board. 16. Remove the keyboard. Steps 1. Remove the two (M2x3) screws that secure the power button with the fingerprint reader on the palmrest [1]. 2.

  • Page 73: Display Assembly

    Next steps 1. Install the keyboard. 2. Install the system board. 3. Install the board. 4. Install the speaker. 5. Install the System fan. 6. Install the Heatsink. 7. Install the Inner frame. 8. Install the coin cell battery. 9. Install the DC-in. 10.
  • Page 74 3. Remove the base cover. 4. Remove the battery. Steps 1. Peel the adhesive tape and disconnect the cable from the connector on the system board [1]. 2. Remove the two (M2x4) screws that secures the eDP cable bracket to the system board [2]. 3.
  • Page 75 6. Remove the four (M2.5x4) screws that secure the display assembly to the system chassis [1]. 7. Remove the display assembly from the system [2]. Removing and installing components...
  • Page 76 Installing the display assembly About this task NOTE: Ensure that the hinges are opened to the maximum before replacing the display assembly on the palmrest and keyboard assembly. Steps 1. Align and place the system chassis under the hinges of the display assembly [1]. 2.
  • Page 77 3. Seat the system chassis on the display assembly. Removing and installing components...
  • Page 78 4. Connect the cable to the connector on the system board and adhere the adhesive tape [1]. 5. Reroute the eDP cable and connect it to the eDP connector [2]. 6. Place the eDP cable bracket on the system board [3]. 7.

  • Page 79: Display Bezel

    Next steps 1. Install the battery. 2. Install the base cover. 3. Install the microSD card. 4. Follow the procedure in After working on your computer. Display bezel Removing display bezel Prerequisites 1. Follow the procedure in before working with your computer.
  • Page 80 Use a plastic scribe to carefully pry open the recesses near the left and right hinges on the bottom edge of the display bezel [1]. When prying open the display bezel, ensure to pry along the outside edge of the display bezel using your hands or plastic scribes—using a screw driver or other sharp objects may damage the display cover.
  • Page 81 Installing the display bezel Steps Align the display bezel with the display assembly, and then gently snap the display bezel into place. Removing and installing components...
  • Page 82 Removing and installing components...

  • Page 83: Display Panel

    Next steps 1. Install the display assembly. 2. Install the battery. 3. Install the base cover. 4. Install the microSD card. 5. Follow the procedure in After working on your computer. Display panel Removing display panel Prerequisites 1. Follow the procedure in before working with your computer.
  • Page 84 2. Peel the conductive tape [1] on the display cable connector. 3. Remove the adhesive strip that secures the display cable connector [2] 4. Lift the latch and disconnect the display cable from the connector on the display panel. Do not pull and release the Stretch (SR) Tapes from the display panel.
  • Page 85 Removing and installing components...
  • Page 86 Installing display panel Steps 1. Connect the display cable to the connector and close the latch [1, 2]. 2. Adhere the adhesive strip to secure the display cable connector [3, 4]. 3. Adhere the conductive tape to secure the display cable connector . LCD Panel comes with two (L+R) brackets that needs to toe-in first, then secure two screws located at the base of the LCD panel.

  • Page 87: Camera

    Next steps 1. Install the Display hinges. 2. Install the display assembly. 3. Install the battery. 4. Install the base cover. 5. Install the microSD card. 6. Install the WLAN. 7. Install the WWAN. 8. Install the Inner frame. 9. Follow the procedure in After working on your computer.
  • Page 88 8. Remove the Display hinge 9. Remove the display assembly. Steps 1. Peel the two conductive tape that secures the camera in place [1] 2. Carefully pry and lift the camera module from the display back cover [2]. 3. Disconnect the camera cable from the connector on the camera module . Installing camera Steps 1.

  • Page 89: Hinge Caps

    2. Insert the camera into the slot on the display back cover . 3. Affix the two conductive tape above the camera [2]. Next steps 1. Install the display assembly. 2. Install the WLAN. 3. Install the WWAN. 4. Install the battery. 5.
  • Page 90 6. Remove the WLAN. 7. Remove the display assembly. 8. Remove the Display panel Steps 1. Remove the two (M2x3) screws that secure the hinge caps to the chassis [1]. 2. Pinch the hinge caps to release the hinge caps from the ribs on the display back cover then slide inwards to remove the hinge caps from the display hinge [2].

  • Page 91: Display Hinges

    Next steps 1. Replace the Display panel 2. Install the display assembly. 3. Install the WLAN. 4. Install the WWAN. 5. Install the battery. 6. Install the base cover. 7. Install the microSD card. 8. Follow the procedure in After working on your computer.
  • Page 92 Steps 1. Remove the four (M2.5x3) screws that secure the display hinge to the display assembly [1]. 2. Remove the display hinges from the display back cover [2]. Installing display hinge Steps 1. Place the display hinge on the display assembly. 2.

  • Page 93: Display (Edp) Cable

    a. Install the Display panel. b. Install the Dsiplay assembly. c. Install the WLAN. d. Install the WWAN. e. Install the battery. f. Install the base cover. g. Install the microSD card. h. Follow the procedure in After working on your computer.
  • Page 94 11. Remove the Camera Steps Peel the conductive tape and unroute the display cable to release it from adhesive and lift the display cable from the display back cover. Installing display cable Steps 1. Adhere the display cable to the display back cover. 2.

  • Page 95: Display Back Cover Assembly

    Next steps 1. Install the Camera. 2. Install the Display panel 3. Install the Display hinge 4. Install the display assembly. 5. Install the WLAN. 6. Install the WWAN. 7. Install the battery. 8. Install the base cover. 9. Install the microSD card.
  • Page 96 11. Remove the heatsink. 12. Remove the system fan. 13. Remove the speaker. 14. Remove the board. 15. Remove the system board. 16. Remove the keyboard. 17. Remove the power button. 18. Remove the display assembly. 19. Remove theDisplay hinges. 20.

  • Page 97: Palmrest Assembly

    14. Install the microSD card. 15. Follow the procedure in After working on your computer. Palmrest assembly Replacing the palmrest assembly Prerequisites 1. Follow the procedure in before working with your computer. 2. Remove the microSD card. 3. Remove the base cover.
  • Page 98 Next steps 1. Install the touchpad button board. 2. Install the display assembly. 3. Install the power button. 4. Install the keyboard. 5. Install the system board. 6. Install the board. 7. Install the speaker. 8. Install the System fan. 9.

  • Page 99: Troubleshooting

    Troubleshooting Basic troubleshooting This page contains all the information for Dell Latitude 5400 Chrome basic troubleshooting NOTE: Refer to https://support.google.com/chrome/a/?hl=en#topic=4386908 for the online troubleshooter. NOTE: Resetting the Chromebook, also known as Powerwash, can be attempted before Recovering the Chromebook. Recovering the Chromebook is the last resort.
  • Page 100 Display issue 1. Make sure the Chromebook is on. If you are using the battery, plug the Chromebook in and press the power button. 2. Restart the Chromebook by holding the power button down until the device turns off, then turn it back on again. 3.
  • Page 101 Bluetooth issue If you run into issues while attempting to pair or use a Bluetooth device with the Chromebook, try the following steps to resolve the issue: 1. First, make sure that the Bluetooth device you are trying to pair is supported by the Chromebook.
  • Page 102 Chrome OS issue Table 7. Chrome OS issue Chrome OS issues If the Chromebook becomes slow or unresponsive, and the He's Dead, Jim! error message appears, the system could be running low on memory. NOTE: If you terminated the process using Google Chrome's Task Manager, the system's task manager, or with a command line tool, this message will appear as He’s Dead, Jim! error message...

  • Page 103: 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 104 Command Purpose ssh_forget_host Removes a host from the list of known ssh hosts. This command displays a menu of known hosts and prompts for the host to forget. Sets the chaps debug logging level. No arguments start verbose logging Table 9. Advanced help command Command Purpose battery_test[<test length>]...

  • Page 105: Chrome Commands

    Command Purpose [duration] will start recording. sound play <filename> plays the recorded audio samples storage_status Reads storage device SMART health status, vendor attributes, and error logs. storage_test_1 Performs a short offline SMART test. storage_test_2 Performs an extensive readability test. syslog <message> Logs a message to system log.
  • Page 106 Explanation 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 Shows conflicts of all modules loaded by...
  • Page 107 3. chrome://downloads: This is also available from the Menu > Downloads. Shortcut key is Ctrl+J. 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. Troubleshooting...
  • Page 108 6. chrome://history: This is also available from the Menu > History. Short cut key is Ctrl+H. 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. Troubleshooting...
  • Page 109 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. chrome://net-internals: This displays all networking related information. Use this to capture network events generated by the browser.
  • Page 110 11. chrome://settings: This is also available from the Menu > Options (on Windows), and Menu > Preferences (on Linux). From here you can control various browser related settings. 12. chrome://sync-internals: This gives information about the Chrome sync feature, including the Sync URL used by Google, and sync statistics.

  • Page 111: Commonly Used Crosh Command

    Commonly used CROSH command This page contains information about the most commonly used CROSH commands to diagnose the Dell . 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 112 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. Disconnect the AC adapter from the Chromebook. 2. Turn on and sign in to Chromebook. 3.
  • Page 113 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. • If the Battery health percentage is equal to or less than 50% and the battery is less than a year old, the battery is outside expected wear limits and might need to be replaced.
  • Page 114 3. Press CTRL + ALT + T to open CROSH. 4. Type memory_test into CROSH, and then press Enter. Troubleshooting...
  • Page 115 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 116 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 117 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 118: Recovery Chromebook

    7. If the diagnostic test returns a failure message, make sure the Wi-Fi adapter is enabled and connect to a network. Recovery Chromebook This page contains information about recovering Dell Latitude 5400 Chrome. 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 119 Operating System Instructions 3. After you recover your Chromebook, you must format your USB flash drive or SD card using the Recovery Tool. If you do not format your USB flash drive or SD card, you will not be able to use all the storage space on your external device.

  • Page 120: Reset Chromebook

    Reset Chromebook This page contains all information about resetting Dell Latitude 5400 Chrome. All local user data stored on the Chrome OS can be cleared by resetting it to its original factory state (also known as Powerwash). This step might be helpful if you want to reset owner permissions or if you are experiencing issues with your user profile.
  • Page 121 2. Click Settings as highlighted from the picture below. 3. Click Show advanced settings to expand the menu. 4. Click the Powerwash button. Troubleshooting...

  • Page 122: Lcd Built-In Self Test

    Overview : LCD Built-in Self Test (BIST) Dell laptop PCs have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with the LCD (screen) of the Dell laptop PC or with the video card (GPU) and PC settings .

  • Page 123: Diagnostic Leds

    6. Carefully inspect the screen for abnormalities. 7. Press Esc key to exit. NOTE: Dell ePSA upon launch, initiates a LCD BIST first, expecting an user intervention confirm functionality of the LCD. Diagnostic LEDs Instead of beep codes, errors are indicated via the bicolor Battery Charge/Status LED. A specific blink pattern is followed by flashing a pattern of flashes in amber, followed by white.

  • Page 124: Diagnostics

    For diagnostics pattern 2-amber, 8-white connect an external monitor to isolate between system board or graphics controller failure. Diagnostics This chapter details the built in troubleshooting features to diagnose the Dell Latitude 5400 Chrome systems. It also lists the invoking instructions along with related information for each diagnostics method. ePSA Diagnostics The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware.
  • Page 125 ePSA User Interface This section contains information on ePSA 3.0’s Basic and Advanced Screen. ePSA opens basic screen on start. You can switch to advanced screen using the arrow icon on the bottom. Advanced screen shows detected devices on the left column. Specific test can be included or excluded only in the interactive mode. ePSA Basic Screen The Basic Screen has minimal controls which allows easy navigation for user to start or stop the diagnostic.
  • Page 126 ePSA Advanced Screen The advanced screen allows more directed testing and contains more detail information about the overall health of the system. The user can get to this screen by simply swiping your finger to the left on touchscreen systems or clicking the next page button on the lower right hand side of the basic screen.
  • Page 127 2. Select the device from the left pane and click Run Tests or use Advanced Option to include or exclude any Test. ePSA Error Messages When the Dell ePSA Diagnostic detects an error while running, it will pause the test and then popup a window as shown below : Troubleshooting...

  • Page 128: Validation Tools

    By responding to Retry, the diagnostic will ignore the error and rerun the last test. Capture the error code with Validation code or Scan QR code and Contact Dell NOTE: As part of the new feature, user can now mute the beeping sound code when there is an error , by pressing on at the bottom right side of the error window.
  • Page 129 2. Navigate to Online ePSA Validation Tool. 3. Enter error code, validation code, and service tag. Part serial number is optional. NOTE: For error code, use only the last 3 or 4 digits of the code. (user can enter 0142 or 142 instead of 2000–0142.) 4.
  • Page 130 Results Valid Error Code Example After entering the correct information, the online tools will direct user to above screen which contains information of : Troubleshooting...
  • Page 131 Confirmation of the error code and result outcome. • Suggested Part Replacement. • If customer is still covered under Dell Warranty. • Case reference number if there is an open case under the service tag . Invalid Error Code Example...
  • Page 132 3. QR code scanner application will scan the code and automatically generate the link out. Click on the link to proceed. Troubleshooting...
  • Page 133 Results The link generated will navigate customer to Dell Support website which contains information of : • Confirmation of the error code and result outcome. • Suggested Part Replacement. • If customer is still covered under Dell Warranty. • Case reference number if there is an open case under the service tag.
  • Page 134 Troubleshooting...

  • Page 135: Getting Help And Contacting Dell

    Getting help and contacting Dell Self-help resources You can get information and help on Latitude 5400 Chrome and other Dell products and services using these self-help resources: Table 14. Self-help resources Self-help resources Resource location Information about Dell products and services https://www.dell.com...

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