Dell Chromebook 3400 Service Manual

Dell Chromebook 3400 Manual

Dell Chromebook 3400 manual content summary:

  • Dell Chromebook 3400 | Service Manual - Page 1
    Dell Chromebook 3400 Service Manual Regulatory Model: P101G Regulatory Type: P101G001
  • Dell Chromebook 3400 | Service Manual - Page 2
    of data and tells you how to avoid the problem. WARNING: 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
  • Dell Chromebook 3400 | Service Manual - Page 3
    Contents 1 Working on your computer...5 Safety instructions...5 Storing Chromebooks for long term - best practices...5 Before working inside card...14 Installing microSD card...14 Base cover...15 Removing the base cover...15 Installing the base cover...17 Battery...19 Lithium-ion battery precautions
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    back cover and antenna assembly 72 Palm rest...73 Replacing palmrest assembly...73 5 Troubleshooting...75 Basic troubleshooting...75 Power issues...75 CROSH...79 CROSH commands...79 Chrome commands...81 Commonly used CROSH command...87 Check battery charging status...87 Reset Chromebook...94
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    replaced troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions Chromebooks
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    that you follow the Safety Instruction. 2. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched. 3. computer About this task After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on
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    components NOTE: Instructions provided in this between host computers and peripheral devices like mice, keyboards, external drivers, and printers. Let's take a quick look on and support for new transfer types • Backward USB 2.0 compatibility • New connectors and cable The topics below cover some
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    territory, like external RAID storage systems. Listed below are some of the available SuperSpeed USB 3.0/USB 3.1 Gen 1 products: • External Desktop USB 3.0/ a proper SuperSpeed USB connection. Windows 10 will be bringing native support for USB 3.1 Gen 1 controllers. This is in contrast to previous
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    hides the tabs and launcher Enter Overview mode, which shows all windows Decrease screen brightness Increase screen brightness Mute Decrease the volume Increase the volume Search applications and the web at the same time. On a Chromebook, this key is on the side, where the Caps Lock key is
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    press Ctrl+Alt+? To open the keyboard viewer on your screen. Touchpad This page contains information for Dell touchpad gestures. The following table lists some gestures and actions supported by the Chromebook touchpad: Table 4. Touch pad gestures Gestures Touchpad gestures Explanation Simply
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    Bluetooth This section outlines the instruction to pair a bluetooth device with your Chrome devices. Bluetooth technology lets you connect devices wirelessly over short distances. To use the Bluetooth accessories with your Chromebook, first check if your Chromebook supports Bluetooth. You will then
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    3 Major components of your system 1. Base cover 2. System board 12 Major components of your system
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    3. Battery 4. Speaker 5. Palmrest assembly 6. Display assembly 7. Input and output board NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the
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    4 Removing and Installing microSD card Removing microSD card Prerequisites Follow the procedure in before working inside your computer. Steps 1. Press the microSD card to release it from the computer [1]. 2. Remove the microSD card from the computer [2]. Installing microSD card Steps Slide the SD
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    procedure in after working inside your computer. Base cover Removing the base cover Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. Steps 1. Loosen the 11 captive screws that secure the base cover to the computer. Removing and Installing 15
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    2. Pry the base cover from the edge using a plastic scribe [1, 2]. 16 Removing and Installing
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    around the left and right side of the base cover, then remove the base cover from the system. 3. Lift the base cover from the computer. Installing the base cover Steps 1. Align the base cover on the computer and press the edges of the cover until it clicks into place. Removing and Installing 17
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    2. Tighten the 11 captive screws to secure the base cover to the computer. 18 Removing and Installing
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    to pry on or against the battery. • Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental puncture or damage Dell technical support for assistance. See www.dell.com/contactdell. • Always purchase genuine batteries from www.dell.com or authorized Dell
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    2. Remove the microSD card. 3. Remove the base cover. CAUTION: During a service incident, it is possible that a component of the steps 1 to 3. NOTE: It is now safe to unplug the battery and service the Chromebook. 5. Disconnect the battery cable from the connector in the system board [1]. 6.
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    9. Pry the battery from the bottom edge [1] and remove the battery from the computer [2]. Removing and Installing 21
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    [1]. 2. Align the battery into the slot on the computer and press the battery on the upper right corner to fix it to the palmrest [2]. 3. Replace the three (M2.0x4.0) screws to secure the battery to the palmrest [1]. 4. Affix the adhesive tape to the battery [2, 3]. 22 Removing and Installing
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    5. Reroute the battery cable and connect the cable to the connector on the system board [1, 2]. Removing and Installing 23
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    Speaker Removing the speakers Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. Steps 1. Peel the adhesive tape that secures the speaker cable to the palmrest [1]. 2. Disconnect the speaker cable
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    5. Lift the speakers away from the computer. Removing and Installing 25
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    Installing the speakers Steps 1. Place the speakers into the slots on the computer. 26 Removing and Installing
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    2. Reroute the speaker cable through the retention clips in the routing channel. Removing and Installing 27
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    3. Connect the speaker cable to the connector on the system board [1]. 4. Affix the adhesive tapes to secure the speaker cable to the computer [2, 3]. 28 Removing and Installing
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    come with the input and output board. 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. Steps 1. Disconnect the Type-C power cable from the connector in the IO board [1]. 2. Open the latch and disconnect the
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    3. Remove the two (M2.0x4.0) screws that secure the IO board bracket to the IO board [1]. 4. Use a plastic scribe to lift the IO board bracket away from the palmrest [2]. 30 Removing and Installing
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    5. Remove the two (M2.0x4.0) screws that secure the IO board to the palmrest [1]. 6. Lift the IO board away from the computer [2]. Removing and Installing 31
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    Installing Input output board Steps 1. Place the IO board to its slot in the computer [1]. 2. Replace the two (M2.0x4.0) screws that secure the I/O board to the palmrest [2]. 32 Removing and Installing
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    3. Place the IO board bracket to its slot and replace the two (M2.0x4.0) screws that secure the bracket to the IO board [1, 2]. Removing and Installing 33
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    board cables and close the latch to secure it to the IO board [2]. Next steps 1. Install the battery. 2. Install the base cover. 3. Install the microSD card. 4. Follow the procedure in after working inside your computer. Keyboard interposer board Removing the keyboard interposer board Prerequisites
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    3. Remove the two (M2.0x4.0) screws that secure the keyboard interposer board to the palmrest [1]. 4. Lift the keyboard interposer board away from the computer [2]. Removing and Installing 35
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    Installing the keyboard interposer board Steps 1. Carefully insert the keyboard interposer board to its slot [1]. 2. Replace the two (M2.0x4.0) screws to secure the keyboard interposer board to the palmrest [2]. 36 Removing and Installing
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    3. Connect the keyboard cable and keyboard interposer board cable to the connectors on the interposer board and system board [1, 2]. Removing and Installing 37
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    Removing the keyboard Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. Steps 1. Disconnect the keyboard cable from the connector on the keyboard interposer board [1]. 2. Lift the palmrest and
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    Installing the keyboard Steps 1. Align the keyboard trim with the tabs on the system, and slightly lift it [1, 2]. Removing and Installing 39
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    2. Carefully insert the keyboard cable through the gap on the palm rest and place the keyboard trim to its place [1, 2]. 3. Press the keyboard until it clicks into place and then turn the system [1, 2]. 40 Removing and Installing
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    4. Pull the keyboard cable from the gap in the palmrest and connect to the connector on the keyboard interposer board [1, 2]. Removing and Installing 41
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    Removing the system board Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. 5. Remove the keyboard interposer board Steps 1. Remove the single (M2.0x3.0) screw that secures the wireless bracket
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    8. Remove the left IO bracket from the system board [1]. 9. Disconnect and peel the Type-C power cable from the connector on the system board [2]. Removing and Installing 43
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    10. Lift the latch and disconnect the 30-pin IO board cable, 40-pin IO board cable, and the touchpad cable from the connectors on the system board [1, 2]. 11. Disconnect the speaker cable from the connector on the system board [3]. 44 Removing and Installing
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    12. Remove the four (M2.0x4.0) screws that secure the system board to the palmrest [1]. 13. Carefully slide and lift the system board from the left side and remove the system board from the computer [2]. Removing and Installing 45
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    Installing system board Steps 1. Align the screw holes on the system board with the screw holes and slide the system board on the computer. 2. Replace the four (M2.0x4.0) screws to secure the system board to the palmrest. 46 Removing and Installing
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    3. Connect the 30-pin IO board cable, 40-pin IO board cable, and the touchpad cable to the connectors on the system board and close the latch [1, 2]. 4. Connect the speaker cable to the connector on the system board [3]. Removing and Installing 47
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    5. Place the left IO bracket to its place on the system board [1]. 6. Connect the Type-C power cable to the connector on the system board [2]. 48 Removing and Installing
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    close the latch [1]. 8. Affix the adhesive tape to secure the display cable to the system board [2]. 9. Place the display cable bracket over the connector and replace the single (M2.0x4.0) screw to secure the display cable bracket to the system board [3, 4]. Removing and Installing 49
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    10. Connect the two wireless antennas to the connector on the system board [1]. 11. Align and place the wireless bracket to its slot [2]. 12. Replace the single (M2.0x3.0) screw to secure the wireless bracket [3]. 50 Removing and Installing
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    assembly Removing display assembly Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. Steps 1. Remove the single (M2.0x3.0) screw that secures the wireless bracket to the system board [1]. 2. Lift
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    4. Remove the single (M2.0x4.0) screw that secures the display cable bracket to the system board [1]. 5. Lift the display cable bracket away from the computer [2]. 6. Peel the adhesive tape that secures the display cable [3]. 7. Lift the latch and disconnect the display cable from the connector on
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    NOTE: The screw securing the display cable bracket also secures the left IO bracket to the system board, as a result removal of the display cable bracket leaves the left IO bracket unsecured. Technicians should therefore ensure that the left IO bracket is not moved or lost during any subsequent
  • Dell Chromebook 3400 | Service Manual - Page 54
    Installing display assembly Steps 1. Place the chassis on the edge of a plane surface. 2. Align the display assembly with the screw holders on the computer [1]. 3. Replace the six (M2.5x5.0) display hinge bracket screws to secure the display assembly to the palmrest [2]. 54 Removing and Installing
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    close the latch [1]. 6. Affix the adhesive tape to secure the display cable to the system board [2]. 7. Place the display cable bracket over the connector and replace the single (M2.0x4.0) screw to secure the display cable bracket to the system board [3, 4]. Removing and Installing 55
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    8. Connect the two wireless antennas to the connector on the system board [1]. 9. Align and place the wireless bracket to its slot [2]. 10. Replace the single (M2.0x3.0) screw to secure the wireless bracket [3]. 56 Removing and Installing
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    the battery. 5. Remove the display assembly Steps 1. Remove the four (M2.5x3.5) screws that secure the display bezel to the panel. NOTE: The stickers covering the display bezel screws can be removed along with the screws and do not need to be peeled off first. When removing, apply pressure with
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    2. Use a plastic scribe to carefully pry open the upper right or upper left corner of the outside edge of the display bezel and continue to pry open the outside edge of the top side of the display bezel and then pry open the outside edge of the left and right sides of the display bezel [1, 2, 3].
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    3. Carefully pry open the inside edge of the top side of the display bezel and then pry open the inside edge of the left and right sides of the display bezel [1, 2]. 4. Continue to pry open the bottom outside edge of the display bezel and carefully pry open the bottom inside edge of the display
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    Installing display bezel Steps 1. Place the display bezel on the display assembly. 2. Starting from the top corner, press on the display bezel and work around the entire bezel until it clicks on to the display assembly. 60 Removing and Installing
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    3. Replace the four (M2.5x3.5) screws to secure the display bezel to the display assembly. 4. Adhere the four bezel stickers over the screws once the screws have been secured. Removing and Installing 61
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    panel Removing display panel Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. 5. Remove the display assembly. 6. Remove the display bezel Steps 1. Remove the four (M2.0x3.0) screws that secure
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    2. Peel the conductive tape securing the display cable on the back of the display panel 1]. 3. Peel and remove the rubber spacer covering the display cable [2]. 4. Lift the latch and disconnect the display cable from the connector on the display panel [3, 4]. 5. Remove the display panel away from
  • Dell Chromebook 3400 | Service Manual - Page 64
    Installing display panel Steps 1. Align and place the display panel [1]. 2. Connect the display cable to the connector on the display panel and close the latch [2, 3]. 3. Affix the rubber spacer [4] and then the conductive tape to secure the display cable on the back of the display panel [5]. 4.
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    5. Replace the four (M2.0x3.0) screws to secure the display panel to the display assembly. Removing and Installing 65
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    Removing display hinge Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. 5. Remove the display assembly. 6. Remove the display bezel. 7. Remove the display panel. Steps 1. Remove the four (M2
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    Installing display hinge Steps 1. Place the display hinges onto its slot and align the screw holes on the hinges with the screws holes on the display back cover [1]. 2. Replace the four (M2.5x3.5) screws to secure the display hinges to the display back cover [2]. Removing and Installing 67
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    Next steps 1. Install the display panel. 2. Install the display bezel. 3. Install the display assembly. 4. Install the battery. 5. Install the base cover. 6. Install the microSD card. 7. Follow the procedure in after working inside your computer. Display cable Removing display cable Prerequisites 1.
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    and unroute the cable [2, 3]. 3. Peel the adhesive tape that secures the display cable and lift the display cable away from the display back cover and antenna assembly. Installing display cable Steps 1. Affix the adhesive tape to secure the display cable to the display back coverand route the cable
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    Next steps 1. Install the display panel. 2. Install the display bezel. 3. Install the display assembly. 4. Install the battery. 5. Install the base cover. 6. Install the microSD card. 7. Follow the procedure in after working inside your computer. Camera Removing camera Prerequisites 1. Follow the
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    3. Use a plastic scribe to pull the camera module out from the chassis [3]. Installing camera Steps 1. Align and place the camera to its slot in the display assembly [1]. 2. Connect the camera cable to the connector on the display assembly [2]. 3. Affix the adhesive tape to secure the camera cable
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    2. Install the display assembly. 3. Install the battery. 4. Install the base cover. 5. Install the microSD card. 6. Follow the procedure in after working inside your computer. Display back cover Replacing display back cover and antenna assembly Prerequisites 1. Follow the procedure in before working
  • Dell Chromebook 3400 | Service Manual - Page 73
    once all the pre-removal parts procedures are completed. If the wireless antennas are malfunctioning and need to be replaced, replace the entire display back-cover and antenna assembly. Next steps 1. Install the display cable. 2. Install the camera. 3. Install the display hinges. 4. Install the
  • Dell Chromebook 3400 | Service Manual - Page 74
    the pre-removal parts procedures are completed. If the touchpad frame, touchpad support bracket, touchpad mylar, touchpad module, touchpad cable, conductive tape or thermal pad are malfunctioning and need to be replaced, replace the entire palm-rest assembly. Next steps 1. Install the system board
  • Dell Chromebook 3400 | Service Manual - Page 75
    computer to figure out which device is causing the problem. You are done. b. If the Chromebook still does not start or exhibits the same problem, do not reconnect anything, and continue troubleshooting. 2. The battery life might be too low. Plug the Chromebook into the AC adapter and let it charge
  • Dell Chromebook 3400 | Service Manual - Page 76
    performance): 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. Try rebooting the Chromebook 4. If the camera issues persist, try to Reset or Recover
  • Dell Chromebook 3400 | Service Manual - Page 77
    supported by the Chromebook. 2. Try disabling and re-enabling Bluetooth connectivity from the status area in the lower-right corner. 3. Try restarting the Chromebook volume or brightness keys) are not responding, try the following troubleshooting steps, making sure to test the keys after each one:
  • Dell Chromebook 3400 | Service Manual - Page 78
    in to Google. 5. Click Continue and follow the on-screen instructions to reset the password. Other Chromebook lock up or freeze symptoms that are not listed here If none of the above symptoms match the Chromebook's issue, refer to Google Help Center for the online troubleshooter and more help. 78
  • Dell Chromebook 3400 | Service Manual - Page 79
    CROSH This topic covers the information that you need to know for the Chrome Shell (CROSH). CROSH and the Google Chrome URL commands provide some troubleshooting tools, information, and advanced settings. The Chrome OS does not support ePSA, Dell BIOS, the F12 boot menu, or DellConnect. There are no
  • Dell Chromebook 3400 | Service Manual - Page 80
    be used to play/record audio samples and enable beam forming on Pixel. sound beamforming will enable/disable the feature. sound record 80 Troubleshooting
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    tpcontrol {syntp [on|off]} tracepath [-n] [/port] update_over_cellular [enable|disable] upload crashes wpa_debug [
  • Dell Chromebook 3400 | Service Manual - Page 82
    Dell supports View running processes and memory utilization Shows conflicts of all modules loaded by Chrome Allows troubleshooting was enabled Detailed memory usage for apps/ extensions, especially handy for 2 GB Chromebooks Following are the 12 most helpful chrome:// commands that you should know:
  • Dell Chromebook 3400 | Service Manual - Page 83
    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 83
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    by the Google Chrome browser. This also displays all the process related to browser with their PID, process name, and the memory it takes. 84 Troubleshooting
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    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 the number of sessions and magic list that are currently running. Troubleshooting 85
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    related settings. 12. chrome://sync-internals: This gives information about the Chrome sync feature, including the Sync URL used by Google, and sync statistics. 86 Troubleshooting
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    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. Check battery charging status The
  • Dell Chromebook 3400 | Service Manual - Page 88
    . 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. Open the Chrome browser. 4. Press CTRL + ALT + T to open CROSH. 88 Troubleshooting
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    screen replaced. 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. Open the Chrome browser. Troubleshooting
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    3. Press CTRL + ALT + T to open CROSH. 4. Type memory_test into CROSH, and then press Enter. 90 Troubleshooting
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    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. Troubleshooting 91
  • Dell Chromebook 3400 | Service Manual - Page 92
    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. 92 Troubleshooting
  • Dell Chromebook 3400 | Service Manual - Page 93
    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 93
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    Reset Chromebook This page contains all information about resetting Dell . All local user data stored on the Chromebook can instructions below if you're using a managed Chrome device, as you will not be able to re-enroll your device after powerwashing it. Follow these steps to reset your Chromebook
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    2. Click Settings as highlighted from the screenshot below. 3. Click Show advanced settings to expand the menu. Troubleshooting 95
  • Dell Chromebook 3400 | Service Manual - Page 96
    is restarted, click Reset.) After you restart the Chromebook, you should now see the setup screen. Follow the instructions on the screen to set up your Chromebook again. Make sure you sign in with your primary Google Account, because this account is set as the owner account. 96 Troubleshooting
  • Dell Chromebook 3400 | Service Manual - Page 97
    for your school, business, or organization, click this link to download the Recovery Tool: 2. 3. 2. Run the tool and follow the instructions that appear on your screen. 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
  • Dell Chromebook 3400 | Service Manual - Page 98
    the USB flash drive or SD card you created into the USB port or SD card slot on your Chrome device 3. Wait for the Chromebook to boot up from the flash drive 4. Follow the instructions that appear on the screen. 5. On successful installation of the Chrome operating system, you will be prompted
  • Dell Chromebook 3400 | Service Manual - Page 99
    , 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 does not recognize the whole size of the USB or SD card used for recover. After you have completed recovery, you need
  • Dell Chromebook 3400 | Service Manual - Page 100
    . 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. Go to Dell.com/support. 2. Select your support category. 3. Verify your country or region in the Choose a Country
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Dell Chromebook 3400
Service Manual
Regulatory Model: P101G
Regulatory Type: P101G001