HP Chromebook 11MK G9 Education Edition Maintenance And Service Manual
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HP Chromebook 11MK G9 Education Edition Maintenance And Service Manual

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Maintenance and Service Guide
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more.

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Summary of Contents for HP Chromebook 11MK G9 Education Edition

  • Page 1 Maintenance and Service Guide SUMMARY This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more.
  • Page 2 HP Inc. under license. of the HP End User License Agreement (EULA). If To access the latest user guides, go to Chrome, Chromebook, Chrome OS, Google, and you do not accept these license terms, your sole http://www.hp.com/support, and follow the...
  • Page 3 Safety warning notice Reduce the possibility of heat-related injuries or of overheating the computer by following the practices described. WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow.
  • Page 4 Safety warning notice ENWW...

  • Page 5: Table Of Contents

    Personal grounding methods and equipment ....................20 Grounding the work area ..........................20 Recommended materials and equipment ..................... 21 Cleaning your computer ................................ 22 Enabling HP Easy Clean (select products only) .................... 22 Removing dirt and debris from your computer .................... 22 ENWW...
  • Page 6 29.5 cm (11.6 in) display specifications ..........................52 8 Statement of memory volatility ................................53 Current BIOS steps ................................. 53 Nonvolatile memory usage ..............................55 Questions and answers ................................. 57 Using HP Sure Start (select products only) ........................59 ENWW...
  • Page 7 9 Power cord set requirements ................................61 Requirements for all countries ............................61 Requirements for specific countries and regions ......................61 10 Recycling ....................................... 65 Index ..........................................67 ENWW...
  • Page 8 viii ENWW...

  • Page 9: Product Description

    This table provides detailed product information. Table 1-1 Product components and their descriptions Category Description Product Name HP Chromebook™ 11MK G9 Education Edition Processors Mediatek Arm Cortex-A MT8183 2.00 GHz (8 cores) Chipset Mediatek integrated soldered-on-circuit (SoC) Display 29.5 cm (11.6 in), liquid crystal display (LCD), high definition (HD) (1366 × 768), antiglare, white light-emitting diode (WLED), UWVA, 50% CG, eDP 1.2 without PSR, slim touchscreen display panel, 220 nits...
  • Page 10 Precision touchpad support Support for Modern Trackpad Gestures Taps enabled as default Power requirements Battery: 2 cell, 47 WHr, HP Long Life Smart AC adapter: 45 W, non-PFC, standard, USB Type–C, straight Power cord: C5, 1.0 m (3.3 ft) Security...

  • Page 11: Components

    Components This is the Components chapter from the user guide. Right Use the illustration and table to identify the components on the right side of the computer. Table 2-1 Right-side components and their descriptions Component Description Audio-out (headphone)/Audio-in Connects optional powered stereo speakers, headphones, (microphone) combo jack earbuds, a headset, or a television audio cable.

  • Page 12: Left

    Table 2-1 Right-side components and their descriptions (continued) Component Description microSD™ memory card reader Reads optional memory cards that store, manage, share, or access information. To insert a card: Hold the card label-side up, with the connectors facing the computer. Insert the card into the memory card reader, and then press in on the card until it is firmly seated.

  • Page 13: Display

    Table 2-2 Left-side components and their descriptions Component Description Security cable slot Attaches an optional security cable to the computer. NOTE: The security cable is designed to act as a deterrant, but it might not prevent the computer from being mishandled or stolen.

  • Page 14: Touchpad

    Table 2-3 Display components and their descriptions (continued) Component Description Camera light On (white): The camera is in use. On (amber): The camera is turned off by the switch. Off: The camera is turned off by the software. Camera Allows you to video chat, record video, and record still images. NOTE: Camera functions vary depending on the camera hardware and software installed on your product.

  • Page 15: Special Keys

    Table 2-4 Touchpad component and description Component Description Touchpad zone Reads your finger gestures to move the pointer or activate items on the screen. Special keys Use the illustration and table to locate the special keys. Table 2-5 Special keys and their descriptions Component Description Activates certain computer functions when pressed in combination...

  • Page 16: Bottom

    Bottom Use the illustration and table to identify the bottom components. Table 2-6 Bottom components and description Components Description Speakers Produce sound. Chapter 2 Components ENWW...

  • Page 17: Illustrated Parts Catalog

    To identify the computer major components, use this illustration and table. NOTE: HP continually improves and changes product parts. For complete and current information about supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. NOTE: Details about your computer, including model, serial number, product key, and length of warranty, are on the service tag at the bottom of your computer.
  • Page 18 Table 3-1 Computer major component descriptions and part numbers Item Component Spare part number Display assembly NOTE: Display spare parts are available as subcomponents, not as whole units. Display subcomponent spare parts are available. For spare part information, see Display assembly subcomponents on page Top cover/keyboard in jet black finish (includes keyboard cable): For use in Belgium M44258-A41...
  • Page 19 Table 3-1 Computer major component descriptions and part numbers (continued) Item Component Spare part number For use in France M44258-051 For use in Germany M44258-041 For use in Israel M44258-BB1 For use in Italy M44258-061 For use in Japan M44258-291 For use in Latin America M44258-161 For use in the Netherlands...
  • Page 20 Table 3-1 Computer major component descriptions and part numbers (continued) Item Component Spare part number For use in the Netherlands M44259-B31 For use in Portugal M44259-131 For use in Romania M44259-271 For use in Russia M44259-251 For use in Saudi Arabia M44259-171 For use in Slovenia M44259-BA1...

  • Page 21: Display Assembly Subcomponents

    Table 3-1 Computer major component descriptions and part numbers (continued) Item Component Spare part number Equipped with 4 GB of system memory and 32 GB of eMMC system storage M44236-001 System board I/O bracket (not illustrated) M45808-001 WLAN module bracket (not illustrated) M45807-001 Heat sink (includes replacement thermal material) M44241-001...
  • Page 22 Table 3-2 Display component descriptions and part numbers Item Component Spare part number Display bezel (includes double-sided adhesive) L89773-001 Display hinge cap L44252-001 Display panel bracket (not illustrated) L89774-001 Display panel (29.5 cm (11.6 in): LCD, HD (1366×768), antiglare, WLED, UWVA, 50% CG, eDP 1.2 without PSR, slim touchscreen display M44257-001 panel;...

  • Page 23: Cables

    Table 3-2 Display component descriptions and part numbers (continued) Item Component Spare part number Webcam/microphone module cable (included in the Cable Kit, spare part number M44247-001, includes double-sided adhesive) Webcam/microphone module (includes double-sided adhesive) M44253-001 NOTE: The webcam/microphone module spare part kit does not include the webcam/microphone module cable.

  • Page 24: Miscellaneous Parts

    Miscellaneous parts To identify the miscellaneous parts, use this table. Table 3-4 Miscellaneous part descriptions and part numbers Component Spare part number 45 W, USB Type-C, AC adapter (non-PFC, 1.8 m, 3 pin) L43407-001 Hardware Kit M44248-001 Power cord (C5, 1.0 m, conventional with sticker) For use in Argentina L19357-001 For use in Australia...

  • Page 25: Removal And Replacement Procedures Preliminary Requirements

    Removal and replacement procedures preliminary requirements Use this information to properly prepare to disassemble and reassemble the computer. Tools required You need the following tools to complete the removal and replacement procedures: Tweezers ● ● Nonconductive, nonmarking pry tool Magnetic Phillips P1 screwdriver ●...

  • Page 26: Service Considerations

    Service considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures. NOTE: As you remove each subassembly from the computer, place the subassembly (and all accompanying screws) away from the work area to prevent damage. Plastic parts Using excessive force during disassembly and reassembly can damage plastic parts.

  • Page 27: Electrostatic Discharge Information

    Electrostatic discharge information A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) might not appear to be affected at all and can work perfectly throughout a normal cycle.

  • Page 28: Preventing Electrostatic Damage To Equipment

    Preventing electrostatic damage to equipment Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent static electricity damage to electronic components. To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes. ●...

  • Page 29: Recommended Materials And Equipment

    Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● Avoid contact with pins, leads, or circuitry. ● Recommended materials and equipment HP recommends certain materials and equipment to prevent static electricity. Antistatic tape ● Antistatic smocks, aprons, or sleeve protectors ●...

  • Page 30: Cleaning Your Computer

    Keep liquids away from the product. Avoid getting moisture in any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do not spray liquids directly on the product. Do not use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide or bleach that might damage the finish.

  • Page 31: Cleaning Your Computer With A Disinfectant

    Keep liquids away from the product. Avoid getting moisture in any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do not spray liquids directly on the product. Do not use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide or bleach that might damage the finish.

  • Page 32: Caring For Wood Veneer (Select Products Only)

    When grounding is not possible, use an ionizer to dissipate electric charges. Accessing support information Use this information to find the HP support that you need. Chapter 4 Removal and replacement procedures preliminary requirements ENWW...
  • Page 33 Search collect Chrome device logs. Technical bulletins To locate technical bulletins: Go to www.hp.com. Place the cursor over Problem solving to display more options. Select Support & Troubleshooting. Type the serial number, product number, or product name to go to the product support page.
  • Page 34 Service consideration Path to access information Repair professionals To locate repair professionals: Go to www.hp.com. Place the cursor over Support resources to display more options. Select Authorized service providers. Component and diagnosis information, failure To locate diagnosis information and actions: detection, and required action Go to http://www.hp.com/go/techcenter/pcdiags.

  • Page 35: Removal And Replacement Procedures For Authorized Service Provider Parts

    Removal and replacement procedures for authorized service provider parts This chapter provides removal and replacement procedures for authorized service provider parts. IMPORTANT: Components described in this chapter should be accessed only by an authorized service provider. Accessing these parts can damage the computer or void the warranty. NOTE: Details about your computer, including model, serial number, product key, and length of warranty, are on the service tag at the bottom of your computer.

  • Page 36: Component Replacement Procedures

    NOTE: HP continually improves and changes product parts. For complete and current information about supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. You must remove, replace, or loosen as many as 43 screws when you service the parts described in this chapter.
  • Page 37 Table 5-1 Top cover/keyboard description and part numbers (continued) For use in country/region Spare part number For use in country/region Spare part number For use in Portugal M44258-131 For use in the United States M44258-001 Top cover/keyboard in nautical teal finish: For use in Belgium M44259-A41 For use in Romania...
  • Page 38 Remove the four Phillips PM2.0×7.1 screws (2) that secure the top cover/keyboard to the bottom cover. Turn the computer right side up with the front toward you. Open the computer as far as it will open. Use a nonmarking, nonconductive tool (1) to release the rear edge of the top cover/keyboard (2) from the computer.

  • Page 39: Touchpad Cable

    Release the ZIF connector (5) to which the touchpad cable is connected, and then disconnect the touchpad cable from the system board. Remove the top cover/keyboard. Reverse this procedure to install the top cover/keyboard. Touchpad cable To remove the touchpad cable, use this procedure and illustration. NOTE: The touchpad cable is included in the Cable Kit, spare part number M44247-001.

  • Page 40: Touchpad

    Remove the touchpad cable (4). Reverse this procedure to install the touchpad cable Touchpad To remove the touchpad, use this procedure and illustration. Table 5-2 Touchpad description and part numbers Description Spare part number NOTE: The touchpad spare part kit does not include the touchpad bracket, touchpad bracket rubber, or touchpad cable. The touchpad bracket is available using spare part number L89791-001.

  • Page 41: Speakers

    Remove the touchpad (6). Reverse this procedure to install the touchpad. Speakers To remove the speakers, use this procedure and illustration. Table 5-3 Speaker description and part number Description Spare part number Speakers (include left and right speakers and cables) M44246-001 Before removing the speakers, follow these steps: Prepare the computer for disassembly...

  • Page 42: Battery

    Remove the battery shield (4). The battery shield is available using spare part number L98587-001. Detach the clear shield (1) that secures the speaker cable to the system board. Disconnect the speaker cable (2) from the system board. Release the speaker cable (3) from the retention clips built into the front edge of the battery. Remove the Phillips M2.0 ×...

  • Page 43: Sensor Board Cable

    Table 5-4 Battery description and part number Description Spare part number Battery (2 cell, 47 Whr, 6.15 Ahr, Li) L75783-005 Before removing the battery, follow these steps: Prepare the computer for disassembly (Preparation for disassembly on page 28). Remove the top cover/keyboard (Top cover/keyboard on page 28).

  • Page 44: Sensor Board

    Detach the clear shield (1) that covers the sensor board cable ZIF connector on the system board. Release the ZIF connector (2) to which the sensor board cable is connected, and then disconnect the sensor board cable from the system board. Detach the clear shield (3) that covers the sensor board cable ZIF connector on the sensor board.

  • Page 45: System Board

    Remove the sensor board: Detach the clear shield (1) that covers the sensor board cable ZIF connector on the system board. Release the ZIF connector (2) to which the sensor board cable is connected, and then disconnect the sensor board cable from the system board. Detach the sensor board cable (3) from the computer.
  • Page 46 Prepare the computer for disassembly (Preparation for disassembly on page 28). Remove the top cover/keyboard (Top cover/keyboard on page 28). Disconnect the battery cable from the system board (Speakers on page 33). When you replace the system board, be sure to remove the heat sink (see Heat sink on page 39 from the defective system board and install it on the replacement system board.

  • Page 47: Heat Sink

    Slide the system board (3) up and to the left at an angle to remove it. NOTE: When removing the system board, make note of the location of the I/O bracket (4). The I/O bracket is available using spare part number M45808-001. Reverse this procedure to install the system board.

  • Page 48: 29.5 Cm (11.6 In) Display Assembly

    Remove the heat sink (2). Each time the heat sink is removed, thoroughly clean the thermal material from the processor component (1) and the surface of the heat sink (2). Replacement thermal material is included with the heat sink and system board spare part kits.
  • Page 49 Remove the clear shield (1) that covers the system board connectors. Remove the Phillips M2.0 × 3.5 screw (2) that secures the WLAN module bracket to the system board, and then remove the WLAN module bracket (3). The WLAN module bracket is available using spare part number M45807-001. Carefully disconnect the two wireless antenna cables (4) from the WLAN module.
  • Page 50 Remove the display bezel (4). The display bezel is available using spare part number L89773-001. Remove the six Phillips M2.0 × 2.9 screws (1) that secure the display panel bracket and the display hinge brackets to the display back cover. Remove the display panel bracket (2).
  • Page 51 Release the display panel cable from the retention clips (1) and routing channel built into the bottom edge of the display back cover. Remove the display panel (2). M44257-001: 29.5 cm (11.6 in), LCD, HD (1366×768), antiglare, WLED, UWVA, 50% CG, eDP 1.2 ●...
  • Page 52 Remove the webcam/microphone module cable from the retention clips (1) and routing channels built into the display back cover. Detach the webcam/microphone module (2) from the display back cover. (The webcam/microphone module is attached to the display back cover with double-sided adhesive.) Release the ZIF connector to which the webcam/microphone module is connected, and then disconnect the webcam/microphone module cable from the webcam/microphone module.
  • Page 53 Rotate the hinges (2) out of the bottom cover. The display hinges are available using spare part number M44251-001. Reverse this procedure to reassemble and replace the display assembly. ENWW Component replacement procedures...
  • Page 54 Chapter 5 Removal and replacement procedures for authorized service provider parts ENWW...

  • Page 55: Backing Up, Resetting, And Recovering

    Backing up, resetting, and recovering This chapter provides information about processes that are standard procedure for most products. Backing up You can back up your data to an optional USB flash drive or SD memory card or through Google Drive. For detailed information about creating a backup, go to http://www.support.google.com.

  • Page 56: Recovering

    Recovering When your Chrome OS™ operating system is not working properly, you can perform a recovery. A recovery reinstalls the operating system and software programs and restores the original factory settings. Locally saved files and saved networks are deleted for all accounts. Your Google Accounts and any data synced to your Google Drive™...
  • Page 57 ENWW Erase and reformat the recovery media...
  • Page 58 Chapter 6 Backing up, resetting, and recovering ENWW...

  • Page 59: Specifications

    Specifications This chapter provides specifications for your computer. Computer specifications This section provides specifications for your computer. When you travel with your computer, the computer dimensions and weights, as well as input power ratings and operating specifications, provide helpful information. Table 7-1 Computer specifications Metric...

  • Page 60: 29.5 Cm (11.6 In) Display Specifications

    Table 7-1 Computer specifications (continued) Metric U.S. Nonoperating –15 m to 12,192 m –50 ft to 40,000 ft NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The device operates well within this range of temperatures. 29.5 cm (11.6 in) display specifications This section provides specifications for your display.

  • Page 61: Statement Of Memory Volatility

    No applications, features, or functionality were added to or installed on the system. Following system shutdown and removal of all power sources from an HP business computer system, personal data can remain on volatile system memory (DIMMs) for a finite period of time and also remains in nonvolatile memory.
  • Page 62 During the reboot, press while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the screen. NOTE: If the system has a BIOS administrator password, enter the password at the prompt. If an asset or ownership tag is set, select the Security menu and scroll down to the Utilities menu. Select System IDs, and then select Asset Tracking Number.

  • Page 63: Nonvolatile Memory Usage

    Provides Data cannot be written to this This memory is protected (select models protected device via the host processor. by the HP Sure Start only) backup of The content is managed solely Embedded Controller. critical System by the HP Sure Start BIOS code, EC Embedded Controller.
  • Page 64 A utility must be used for Computer Setup (BIOS) or a writing data to this custom utility. memory and is available on the HP website; go to http://www.hp.com/ support. Select Find your product, and then follow the on-screen instructions.

  • Page 65: Questions And Answers

    HP ProtectTools call to write to the flash. Security Manager. Questions and answers Use this section to answer your questions about nonvolatile memory. How can the BIOS settings be restored (returned to factory settings)? IMPORTANT: The restore defaults feature does not securely erase any information on your hard drive.
  • Page 66 HP has provided options in Computer Setup (BIOS) to allow you to run in legacy BIOS, if required by the operating system. Examples of this requirement would be if you upgrade or downgrade the OS.

  • Page 67: Using Hp Sure Start (Select Products Only)

    BIOS for attacks or corruption. If the BIOS becomes corrupted or is attacked, HP Sure Start restores the BIOS to its previously safe state, without user intervention. Those select computer models ship with HP Sure Start configured and enabled. HP Sure Start is configured and already enabled so that most users can use the HP Sure Start default configuration.
  • Page 68 Chapter 8 Statement of memory volatility ENWW...

  • Page 69: Power Cord Set Requirements

    Power cord set requirements This chapter provides power cord requirements for countries and regions. The wide-range input feature of the computer permits it to operate from any line voltage from 100 V ac to 120 V ac, or from 220 V ac to 240 V ac. The three-conductor power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased.
  • Page 70 Table 9-1 Power cord requirements for specific countries and regions (continued) Country/region Accredited agency Applicable note number Chile Denmark DEMKO Finland FIMKO France Germany India Israel Italy Japan Netherlands KEMA New Zealand SANZ Norway NEMKO People's Republic of China Saudi Arabia SASO Singapore South Africa...
  • Page 71 Table 9-1 Power cord requirements for specific countries and regions (continued) Country/region Accredited agency Applicable note number United States The flexible cord must be Type HO5VV-F, three-conductor, 0.75 mm² conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used. The flexible cord must be Type SVT/SJT or equivalent, No.
  • Page 72 Chapter 9 Power cord set requirements ENWW...

  • Page 73: 10 Recycling

    Follow the local laws and regulations in your area for battery disposal. HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, see the HP website at http://www.hp.com/recycle.
  • Page 74 Chapter 10 Recycling ENWW...

  • Page 75: Index

    44 AC adapter, spare part number 16 specifications 51, 52 spare part number 45 action keys 7 display bezel HP Sure Start 53, 59 antenna removal 41 location 5 spare part number 42 illustrated parts catalog 9 audio-out (headphone)/audio-in...
  • Page 76 display 51, 52 packaging guidelines 17, 24 hard drive 51 pointing device, product description static electricity 17, 19 support information 24 ports system board product description 1 removal 37 USB 4 spare part numbers 37 USB Type-C power connector 4 system memory, removing personal power cord data from volatile 53...

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