HP Chromebook 11a Manual

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

Legal information
© Copyright 2021 HP Development Company,
L.P.
Bluetooth is a trademark owned by its proprietor
and used by HP Inc. under license. Google,
Chrome, and Chromebook are trademarks of
Google LLC. vPro is a trademark of Intel
Corporation or its subsidiaries in the U.S. and/or
other countries. SDHC, SDXC, and microSD are
trademarks or registered trademarks of SD-3C
LLC. Microsoft and Windows are either registered
trademarks or trademarks of Microsoft
Corporation in the United States and/or other
countries. Qualcomm and Qualcomm Atheros
are either registered trademarks or trademarks
of Qualcomm Corporation in the United States
and/or other countries. USB Type-C and USB-C
are registered trademarks of USB Implementers
Forum. DisplayPort™ and the DisplayPort™ logo
are trademarks owned by the Video Electronics
Standards Association (VESA®) in the United
States and other countries.
The information contained herein is subject
to change without notice. The only warranties
for HP products and services are set forth in
the express warranty statements accompanying
such products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable
for technical or editorial errors or omissions
contained herein.
First Edition: September 2021
Document Part Number: M90122-001
Product notice
This guide describes features that are common
to most models. Some features may not be
available on your computer.
To access the latest user guides, go to
http://www.hp.com/support, and follow the
instructions to nd your product. Then select
Manuals.
Software terms
By installing, copying, downloading, or otherwise
using any software product preinstalled on this
computer, you agree to be bound by the terms
of the HP End User License Agreement (EULA). If
you do not accept these license terms, your sole
remedy is to return the entire unused product
(hardware and software) within 14 days for a full
refund subject to the refund policy of your seller.
For any further information or to request a
full refund of the price of the computer, please
contact your seller.

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, at 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 airow. Also, do not allow the AC adapter to come into contact with the skin or a soft
surface, such as pillows or rugs or clothing, during operation. The computer and the AC adapter comply with the
user-accessible surface temperature limits dened by applicable safety standards.
iii

Table of contents
1 Product description ....................................................................................................................................................................................1
2 Components ................................................................................................................................................................................................3
Right .........................................................................................................................................................................................................3
Left ...........................................................................................................................................................................................................4
Display......................................................................................................................................................................................................4
Special keys.............................................................................................................................................................................................5
3 Illustrated parts catalog.............................................................................................................................................................................7
Computer major components..............................................................................................................................................................7
Display assembly subcomponents......................................................................................................................................................9
Miscellaneous parts ............................................................................................................................................................................ 11
4 Removal and replacement procedures preliminary requirements.................................................................................................. 12
Tools required ...................................................................................................................................................................................... 12
Service considerations........................................................................................................................................................................ 12
Plastic parts................................................................................................................................................................................. 12
Cables and connectors .............................................................................................................................................................. 12
Drive handling............................................................................................................................................................................. 12
Electrostatic discharge information ................................................................................................................................................. 13
Generating static electricity ...................................................................................................................................................... 13
Preventing electrostatic damage to equipment.................................................................................................................... 14
Personal grounding methods and equipment ...................................................................................................................... 14
Grounding the work area........................................................................................................................................................... 15
Recommended materials and equipment.............................................................................................................................. 15
Cleaning your computer ..................................................................................................................................................................... 16
Enabling HP Easy Clean (select products only)...................................................................................................................... 16
Removing dirt and debris from your computer..................................................................................................................... 16
Cleaning your computer with a disinfectant .......................................................................................................................... 17
Caring for wood veneer (select products only)...................................................................................................................... 18
Packaging and transporting guidelines ........................................................................................................................................... 18
Accessing support information ......................................................................................................................................................... 18
5 Removal and replacement procedures for authorized service provider parts .............................................................................. 21
Component replacement procedures.............................................................................................................................................. 21
iv

Preparation for disassembly .................................................................................................................................................... 21
Bottom cover............................................................................................................................................................................... 21
Battery ......................................................................................................................................................................................... 23
Speakers ...................................................................................................................................................................................... 23
System board.............................................................................................................................................................................. 24
Heat sink ...................................................................................................................................................................................... 26
Display assembly........................................................................................................................................................................ 27
Touchpad cable........................................................................................................................................................................... 33
Touchpad ..................................................................................................................................................................................... 34
Connector board cable............................................................................................................................................................... 36
Connector board......................................................................................................................................................................... 36
6 Specications............................................................................................................................................................................................ 38
Computer specications..................................................................................................................................................................... 38
29.6 cm (11.6 in) display specications........................................................................................................................................... 39
7 Power cord set requirements ................................................................................................................................................................ 40
Requirements for all countries.......................................................................................................................................................... 40
Requirements for specic countries and regions........................................................................................................................... 40
8 Recycling ................................................................................................................................................................................................... 43
Index............................................................................................................................................................................................................... 44
v

Product description1
This table provides detailed product information.
Table 1-1 Product components and their descriptions
Category Description
Product Name HP Chromebook™ 11.6 inch Notebook Computer
Model number: 11a-ne0xxx
Processor Mediatek Arm Cortex-A MT8183 2.0 GHz processor (eight cores)
Chipset Mediatek MT6358 PMIC
Graphics Mediatek integrated unied memory architecture (UMA) internal graphics
Display 29.6 cm (11.6 in), liquid crystal display (LCD), high denition (HD) (1366 × 768), antiglare, white light-emitting
display (WLED), ultra wide viewing area (UWVA), 50% National Television System Committee (NTSC), embedded
DisplayPort™ (eDP) 1.2 without Panel Self Refresh (PSR), touchscreen display panel with slim bezel; typical
brightness: 220 nits
29.6 cm (11.6 in), LCD, HD (1366 × 768), antiglare, WLED, super vertical alignment (SVA), 45% NTSC, eDP,
non-touchscreen display panel with slim bezel; typical brightness: 220 nits
Memory Integrated (not customer-accessible nonupgradeable) memory module slots supporting LPDDR4X 3733 MHz
and 4266 MHz on-board, system runs at 3200 MHz 4 GB (32Gb × 1 piece)
Primary storage On-board embedded MultiMedia Controller (eMMC v5.0)
64 GB
32 GB MO-276
Audio and video Dual speakers
One-piece, xed, integrated, USB 2.0, HD camera, 720p
Dual-array microphone
Wireless Integrated wireless local area network (WLAN)
Qualcomm® Atheros™ ac 2×2 + Bluetooth® 4.2 MU-MIMO non-vPro® WW with 2 antenna
Media card reader HP MultiFormat microSD media card reader supporting microSD™, SDHC™, SDXC™
Push-push insertion/removal
Ports Hot plug/unplug and autodetect for correct output to wide-aspect vs. standard aspect video
Audio-out (headphone)/audio-in (microphone) combo jack
USB® Type-C power connector and port (right side)
USB port with HP Sleep and Charge (left side)
Product description 1

Table 1-1 Product components and their descriptions (continued)
Category Description
Keyboard/pointing
devices
Keyboard
Standard notebook keyboard, not backlit, island style, in ash gray nish
Touchpad
Clickpad with image sensor
Multitouch gestures enabled
Precision touchpad support
Taps enabled as default
Power requirements 2 cell, 37 Whr, polymer, HP Long Life battery
45-W AC adapter (non-Power Factor Correction (nPFC), standard USB Type-C®, straight, 1.8 m [6.0 ft])
C5, 1.0 m (3.3 ft), conventional with sticker power cord
Security Supports H1 Secure Microcontroller
Operating system Google® Chrome™ 64
Serviceability End user replaceable part: AC adapter
2 Chapter 1 Product description

Components2
Your computer features top-rated components. This chapter provides details about your components, where
they are located, and how they work.
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
(1) AC adapter and battery light ●White: The AC adapter is connected and the battery is
fully charged.
●Amber: The AC adapter is connected and the battery is
charging.
●Blinking amber: The battery has an error.
●O: The battery is not charging.
(2) USB Type-C power connector and port Connects an AC adapter that has a USB Type-C connector,
supplying power to the computer and, if needed, charging the
computer battery.
– and –
Connects a USB device, provides data transfer, and (for select
products) charges small devices (such as a smartphone) when
the computer is on or in Sleep mode.
NOTE: Use a standard USB Type-C charging cable or cable
adapter (purchased separately) when charging a small
external device.
Components 3

Table 2-1 Right-side components and their descriptions (continued)
Component Description
(3) Audio-out (headphone)/Audio-in
(microphone) combo jack
Connects optional powered stereo speakers, headphones,
earbuds, a headset, or a television audio cable. Also connects
an optional headset microphone. This jack does not support
optional standalone microphones.
WARNING! To reduce the risk of personal injury, adjust the
volume before putting on headphones, earbuds, or a headset.
For additional safety information, see the Regulatory, Safety,
and Environmental Notices.
NOTE: When a device is connected to the jack, the computer
speakers are disabled.
Left
Use the illustration and table to identify the components on the left side of the computer.
Table 2-2 Left-side components and their descriptions
Component Description
(1) USB port with HP Sleep and Charge Connects a USB device, provides high-speed data transfer, and
charges small devices (such as a smartphone), even when the
computer is o.
NOTE: Use a standard USB Type-A charging cable or cable
adapter (purchased separately) when charging a small external
device.
Display
Use the illustration and table to identify the components on the display.
4Chapter 2 Components

Table 2-3 Display components and their descriptions
Component Description
(1) WLAN antennas* Send and receive wireless signals to communicate with WLANs.
(2) Internal microphones Record sound.
(3) 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.
(4) Camera light On (white): The camera is in use.
On (amber): The camera is turned o by the switch.
O: The camera is turned o by the software.
*The antennas are not visible from the outside of the computer. For optimal transmission, keep the areas immediately around the
antennas free from obstructions.
For wireless regulatory notices, see the section of the Regulatory, Safety, and Environmental Notices that applies to your country or region.
Special keys
Use the illustration and table to locate the special keys.
Special keys 5

Table 2-4 Special keys and their descriptions
Component Description
(1) esc key Activates certain computer functions when pressed in combination
with other keys, such as tab or shift.
(2) Search key Opens a search box.
(3) Action keys Execute frequently used system functions.
(4) Power key ●When the computer is o, press the button briey to turn on
the computer.
●When the computer is on, press and hold the button for 10
seconds to turn o the computer.
IMPORTANT: Pressing and holding down the power button
results in the loss of unsaved information.
If the computer has stopped responding and shutdown procedures
are ineective, press and hold the power button for at least 10
seconds to turn o the computer.
6 Chapter 2 Components

Illustrated parts catalog3
Use this table to determine the spare parts that are available for the computer.
Computer major components
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.
Illustrated parts catalog 7

Table 3-1 Computer major component descriptions and part numbers
Item Component Spare part number
(1) Display assembly
NOTE: Display spare parts are available only as subcomponents, not as whole units. Display subcomponent spare parts are
available. For spare part information, see Display assembly subcomponents on page 9.
(2) Top cover/keyboard in ash gray nish
For use in the United Kingdom M86245-031
For use in the United States M86245-001
(3a) Connector board (includes USB connector)
NOTE: The connector board spare part kit does not include the connector board cable. The connector
board cable is available as spare part number M97112-001.
M15716-001
8 Chapter 3 Illustrated parts catalog

Table 3-1 Computer major component descriptions and part numbers (continued)
Item Component Spare part number
(3b) Connector board cable M97112-001
(3c) I/O bracket (not available as a spare part component)
(4) System board: includes an integrated Mediatek Arm Cortex-A MT8183 2.0 GHz processor (8 cores), 4GB of system memory, a
graphics subsystem with UMA memory, the Google Chrome operating system, and replacement thermal material.
Equipped with 64 GB of eMMC storage M87607-001
Equipped with 32 GB of eMMC storage M87606-001
(5) Heat sink (includes replacement thermal material) M15731-001
(6) Battery (2 cell, 37 Whr, 4.96 Ahr, includes cable) L97355-005
(7a) Touchpad in ash gray nish
NOTE: The touchpad spare part kit does not include the touchpad bracket rubber or the touchpad
cable. The touchpad bracket rubber is available using spare part number M16563-001. The touchpad
cable is available using spare part number M15710-001.
M97113-001
(7b) Touchpad bracket rubber M16563-001
(7c) Touchpad cable M97111-001
(8) Speakers (include left and right speakers and cables) M15724-001
(9a) Bottom cover in ash gray nish M86240-001
(9b) Rubber Feet Kit (includes front and rear rubber foot strips) M97114-001
Display assembly subcomponents
To identify the display assembly subcomponents, use this illustration and table.
Display assembly subcomponents 9

Table 3-2 Display component descriptions and part numbers
Item Component Spare part number
(1) Display bezel in jet black nish M86241-001
(2) Display panel:
29.5 cm (11.6 in), LCD, HD (1366×768), antiglare, WLED, UWVA, 50% CG, eDP 1.2 without PSR,
touchscreen display panel; typical brightness: 220 nits
M15718-001
29.5 cm (11.6 in), LCD, HD (1366×768), antiglare, WLED, SVA, 45% CG, eDP, non-touchscreen display
panel; typical brightness: 220 nits
M15719-001
(3) Display hinges (2, include left and right hinges) M15712-001
(4) Display panel cable:
For use only on computer models equipped with a touchscreen display assembly M86242-001
10 Chapter 3 Illustrated parts catalog

Table 3-2 Display component descriptions and part numbers (continued)
Item Component Spare part number
For use only on computer models equipped with a non-touchscreen display assembly M86243-001
(5) Webcam/microphone module (includes double-sided adhesive) M15727-001
(6) Webcam/microphone module cable M15709-001
(7) Wireless antenna cables and transceivers M15696-001
(8) Display back cover in ash gray nish (includes wireless antenna cables and transceivers) M86239-001
Miscellaneous parts
To identify the miscellaneous parts, use this table.
Table 3-3 Miscellaneous part descriptions and part numbers
Component Spare part number
45 W AC adapter (non-PFC, USB Type-C, 1.8 m [6.0 ft]) L43407-001
Power cord (C5, 1.0 m [3.3 ft], sticker, conventional):
For use in North America L19367-001
For use in the United Kingdom L19373-001
Screw Kit M15723-001
Miscellaneous parts 11

Removal and replacement procedures
preliminary requirements
4
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:
Nonconductive, nonmarking pry tool
Magnetic Phillips P1 screwdriver
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.
Cables and connectors
Handle cables with extreme care to avoid damage.
IMPORTANT: When servicing the computer, be sure that cables are placed in their proper locations during the
reassembly process. Improper cable placement can damage the computer.
Apply only the tension required to unseat or seat the cables during removal and insertion. Handle cables by
the connector whenever possible. In all cases, avoid bending, twisting, or tearing cables. Be sure that cables
are routed so that they cannot be caught or snagged as you remove or replace parts. Handle ex cables with
extreme care; these cables tear easily.
Drive handling
Note the following guidelines when handling drives.
12 Chapter 4 Removal and replacement procedures preliminary requirements

IMPORTANT: Drives are fragile components. Handle them with care. To prevent damage to the computer,
damage to a drive, or loss of information, observe these precautions:
Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the computer is
o or in Hibernation, turn the computer on, and then shut it down through the operating system.
Before handling a drive, be sure that you are discharged of static electricity. While handling a drive, avoid
touching the connector.
Before removing an optical drive, be sure that a disc is not in the drive, and be sure that the optical drive tray is
closed.
Handle drives on surfaces covered with at least 2.54 cm (1 inch) of shock-proof foam.
Avoid dropping drives from any height onto any surface.
After removing a hard drive or an optical drive, place it in a static-proof bag.
Avoid exposing an internal hard drive to products that have magnetic elds, such as monitors or speakers.
Avoid exposing a drive to temperature extremes or liquids.
If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective packaging,
and label the package “FRAGILE.”
Electrostatic discharge information
A sudden discharge of static electricity from your nger 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 aected at all and can work perfectly throughout a normal
cycle. The device might function normally for a while, but it has been degraded in the internal layers, reducing its
life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains
enough power to alter device parameters or melt silicon junctions.
IMPORTANT: To prevent damage to the device when you remove or install internal components, observe these
precautions:
Keep components in their electrostatic-safe containers until you are ready to install them.
Before touching an electronic component, discharge static electricity by using the guidelines described Personal
grounding methods and equipment on page 14.
Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.
If you remove a component, place it in an electrostatic-safe container.
Generating static electricity
Follow these static electricity guidelines.
●Dierent activities generate dierent amounts of static electricity.
●Static electricity increases as humidity decreases.
Electrostatic discharge information 13

Table 4-1 Static electricity occurrence based on activity and humidity
Relative humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl oor
Motions of bench worker
Removing DIPs (dual in-line packages) from plastic tube
7,500 V
3,000 V
400 V
400 V
15,000 V
5,000 V
800 V
700 V
35,000 V
12,000 V
6,000 V
2,000 V
Removing DIPs from vinyl tray
Removing DIPs from polystyrene foam
Removing bubble pack from PCB (printed circuit board)
Packing PCBs in foam-lined box
2,000 V
3,500 V
7,000 V
5,000 V
4,000 V
5,000 V
20,000 V
11,000 V
11,500 V
14,500 V
26,500 V
21,000 V
Multiple electric components can be packaged together in plastic tubes, trays, or polystyrene foam.
NOTE: As little as 700 V can degrade a product.
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.
●Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
●Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.
●Place items on a grounded surface before removing them from their container.
●Always be properly grounded when touching a sensitive component or assembly.
●Avoid contact with pins, leads, or circuitry.
●Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.
Personal grounding methods and equipment
Using certain equipment can prevent static electricity damage to electronic components.
●Wrist straps are exible straps with a maximum of 1 MΩ ±10% resistance in the ground cords. To provide
proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and t
snugly into the banana plug connector on the grounding mat or workstation.
●Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most
types of shoes or boots. On conductive oors or dissipative oor mats, use them on both feet with a
maximum of 1 MΩ ±10% resistance between the operator and ground.
14 Chapter 4 Removal and replacement procedures preliminary requirements

Table 4-2 Static shielding protection levels
Static shielding protection levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
1,500
7,500
15,000
Grounding the work area
To prevent static damage at the work area, follow these precautions.
●Cover the work surface with approved static-dissipative material.
●Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and
equipment.
●Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate. Handle them
only at static-free work areas.
●Turn o power and input signals before inserting and removing connectors or test equipment.
●Use xtures made of static-safe materials when xtures must directly contact dissipative surfaces.
●Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids and polystyrene
foam.
●Use conductive eld 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
●Conductive bins and other assembly or soldering aids
●Conductive foam
●Conductive tabletop workstations with ground cord of 1 MΩ ±10% resistance
●Static-dissipative table or oor mats with hard tie to ground
●Field service kits
●Static awareness labels
●Wrist straps and footwear straps providing 1 MΩ ±10% resistance
Grounding the work area 15