Lenovo 81H0000LUK User Manual
User Guide
Lenovo 300e Chromebook
Important safety information ....................................................................................................................... 2
Types of user account for logging into Chrome ....................................................................................... 12
Become your Chromebook’s owner ......................................................................................................... 12
Sign in with a Google Account other than the owner’s ............................................................................. 13
Browse as a guest .................................................................................................................................... 13
Create a supervised account .................................................................................................................... 13
Lock your Chromebook ............................................................................................................................ 14
Sign out .................................................................................................................................................... 14
Control who can use your Chromebook ................................................................................................... 14
Check a Chromebook’s owner ................................................................................................................. 14
Disable guest login ................................................................................................................................... 15
Reset your Chromebook .......................................................................................................................... 15
Shut down your Chromebook ................................................................................................................... 15
Get help from Google ............................................................................................................................... 15
What is Google Drive ............................................................................................................................... 16
Your local storage space .......................................................................................................................... 16
The Files app ............................................................................................................................................ 16
Create folders using the Files app ............................................................................................................ 16
Delete unused files ................................................................................................................................... 16
Change display language ......................................................................................................................... 18
Add an input method ................................................................................................................................ 18
Switch among input methods ................................................................................................................... 18
What is Chrome Web Store ...................................................................................................................... 20
Add apps or extensions ............................................................................................................................ 20
What is CRU and CRU service ................................................................................................................ 21
CRUs for Lenovo 300e Chromebook ....................................................................................................... 21
Specifications ........................................................................................................................................... 22
Appendix B. Regulatory information
Electronic emission notices ...................................................................................................................... 24
Federal Communications Commission (FCC) Declaration of Conformity
Industry Canada Class B emission compliance statement
German Class B compliance statement
Korea Class B compliance statement
Wireless related information ..................................................................................................................... 26
ENERGY STAR model information .......................................................................................................... 28
Brazil regulatory notice ............................................................................................................................. 28
Export classification notice ....................................................................................................................... 28
Appendix C. WEEE and recycling statements
China WEEE statement ............................................................................................................................ 29
Important WEEE information .................................................................................................................... 29
WEEE information for Hungary
Battery recycling information for Taiwan .................................................................................................. 30
Battery recycling information for the European Union .............................................................................. 30
Japan recycling statements ...................................................................................................................... 30
Appendix D. Restriction of Hazardous Substances Directive (RoHS)
India RoHS ............................................................................................................................................... 32
Turkish RoHS ........................................................................................................................................... 32
Ukraine RoHS ........................................................................................................................................... 32
European Union RoHS ............................................................................................................................. 32
Appendix E. Notices
Trademarks .............................................................................................................................................. 34
Read this first
When your computer is turned on or the battery is charging, the base, the palm rest, and
some other parts may become hot. The temperature they reach depends on the amount
of system activity and the level of charge in the battery.
Extended contact with your body, even through clothing, could cause discomfort or even
a skin burn.
Avoid keeping your hands, your lap, or any other part of your body in contact with a
hot section of the computer for any extended time.
Periodically take hands from using the keyboard by lifting your hands from the
palm rest.
When the ac power adapter is connected to an electrical outlet and your computer, it
generates heat.
Extended contact with your body, even through clothing, may cause a skin burn.
Do not place the ac power adapter in contact with any part of your body while it is
in use.
Never use it to warm your body.
To avoid spills and the danger of electrical shock, keep liquids away from your
computer.
Applying strong force to cables may damage or break them.
Route communication lines, or the cables of an AC power adapter, a mouse, a
keyboard, a printer, or any other electronic device, so that they cannot be walked on,
tripped over, pinched by your computer or other objects, or in any way subjected to
treatment that could interfere with the operation of your computer.
Be sure to follow the important tips given here to continue to get the most use and enjoyment out of your
computer. Failure to do so might lead to discomfort or injury, or cause your computer to fail.
Protect yourself from the heat that your computer generates.
Protect yourself from the heat generated by the ac power adapter.
Prevent your computer from getting wet.
Protect the cables from being damaged.
Handle your computer gently.
Do not drop, bump, scratch, twist, hit, vibrate, push, or place heavy objects on your
computer, display, or external devices.
Use a quality carrying case that provides adequate cushioning and protection.
Do not pack your computer in a tightly packed suitcase or bag.
Before putting your computer in a carrying case, make sure that it is off, in sleep
mode, or in hibernation mode. Do not put a computer in a carrying case while it is
turned on.
Carry your computer carefully.
Important safety information
This information can help you safely use your notebook personal computer. Follow and retain all information
included with your computer. The information in this document does not alter the terms of your purchase
agreement or the Lenovo Limited Warranty.
Customer safety is important. Our products are developed to be safe and effective. However, personal
computers are electronic devices. Power cords, power adapters, and other features can create potential
safety risks that can result in physical injury or property damage, especially if misused. To reduce these risks,
follow the instructions in this document carefully. By carefully following the information contained in this
document and provided with your product, you can help protect yourself from hazards and create a safer
computer work environment.
Conditions that require immediate action
Products can become damaged due to misuse or neglect. Some product damage is serious enough that the
product should not be used again until it has been inspected and, if necessary, repaired by an authorized
servicer.
As with any electronic device, pay close attention to the product when it is turned on. On very rare occasions,
you might notice an odor or see a puff of smoke or sparks vent from your product. Or you might hear sounds
like popping, cracking or hissing. These conditions might merely mean that an internal electronic component
has failed in a safe and controlled manner. Or, they might indicate a potential safety issue. However, do not
take risks or attempt to diagnose the situation yourself. Contact the Customer Support Center for further
guidance. For a list of Service and Support phone numbers, go to the following Web site:
http://www.lenovo.com/support/phone
Frequently inspect your computer and its components for damage or wear or signs of danger. If you have any
question about the condition of a component, do not use the product. Contact the Customer Support Center
or the product manufacturer for instructions on how to inspect the product and have it repaired, if necessary.
In the unlikely event that you notice any of the following conditions, or if you have any safety concerns with
your product, stop using the product and unplug it from the power source and telecommunication lines until
you can speak to the Customer Support Center for further guidance.
Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are
cracked, broken, or damaged.
Signs of overheating, smoke, sparks, or fire.
Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign
substances on the battery.
A cracking, hissing or popping sound, or strong odor that comes from the product.
Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord or
power adapter.
The computer product, power cord, or power adapter has been exposed to water.
The product has been dropped or damaged in any way.
The product does not operate normally when you follow the operating instructions.
Note: If you notice these conditions with a product (such as an extension cord) that is not manufactured for or
by Lenovo, stop using that product until you can contact the product manufacturer for further instructions, or
until you get a suitable replacement.
Safety guidelines
Always observe the following precautions to reduce the risk of injury and property damage.
Service and upgrades
Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or
your documentation. Only use a Service Provider who is approved to repair your particular product.
Note: Some computer parts can be upgraded or replaced by the customer. Upgrades typically are referred to
as options. Replacement parts approved for customer installation are referred to as Customer Replaceable
Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for customers to
install options or replace CRUs. You must closely follow all instructions when installing or replacing parts. The
Off state of a power indicator does not necessarily mean that voltage levels inside a product are zero. Before
you remove the covers from a product equipped with a power cord, always make sure that the power is turned
off and that the product is unplugged from any power source. If you have any questions or concerns, contact
the Customer Support Center.
CAUTION:
Use only the power cords and power adapters supplied by the product manufacturer.
The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75 mm2, or better. For
other countries, the suitable types shall be used accordingly.
Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that
can cause the cord to fray, crack, or crimp. This can present a safety hazard.
Always route power cords so that they will not be walked on, tripped over, or pinched by objects.
Protect power cords and power adapters from liquids. For instance, do not leave your power cord or power
adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short
circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause
gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can
eventually result in overheating.
Ensure that all power cord connectors are securely and completely plugged into receptacles.
Do not use any power adapter that shows corrosion at the ac input pins or shows signs of overheating (such
as deformed plastic) at the ac input pins or anywhere on the power adapter.
Do not use any power cords where the electrical contacts on either end show signs of corrosion or
overheating or where the power cord appears to have been damaged in any way.
To prevent possible overheating, do not cover the power adapter with clothing or other objects when the
power adapter is plugged into an electrical outlet.
If a receptacle (power outlet) that you intend to use with your computer equipment appears to be damaged
Before replacing any CRUs, turn off the computer and wait three to five minutes to let the computer cool
before opening the cover.
Power cords and power adapters
DANGER
Extension cords and related devices
Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use
are rated to handle the electrical requirements of the product. Never overload these devices. If power strips
are used, the load should not exceed the power strip input rating. Consult an electrician for more information if
you have questions about power loads, power requirements, and input ratings.
Plugs and outlets
DANGER
or corroded, do not use the outlet until it is replaced by a qualified electrician.
Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to obtain a replacement.
Do not share an electrical outlet with other home or commercial appliances that draw large amounts of
electricity; otherwise, unstable voltage might damage your computer, data, or attached devices.
Some products are equipped with a three-pronged plug. This plug fits only into a grounded electrical outlet.
This is a safety feature. Do not defeat this safety feature by trying to insert it into a non-grounded outlet. If
you cannot insert the plug into the outlet, contact an electrician for an approved outlet adapter or to replace
the outlet with one that enables this safety feature. Never overload an electrical outlet. The overall system
load should not exceed 80 percent of the branch circuit rating. Consult an electrician for more information if
you have questions about power loads and branch circuit ratings.
Be sure that the power outlet you are using is properly wired, easily accessible, and located close to the
equipment. Do not fully extend power cords in a way that will stress the cords.
Be sure that the power outlet provides the correct voltage and current for the product you are installing.
Carefully connect and disconnect the equipment from the electrical outlet.
Power supply statement
Never remove the cover on a power supply or any part that has the following label attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a problem with one of
these parts, contact a service technician.
DANGER
External devices
Attention: Do not connect or disconnect any external device cables other than Universal Serial Bus (USB)
cable while the computer power is on; otherwise, you might damage your computer. To avoid possible
damage to attached devices, wait at least five seconds after the computer is shut down to disconnect external
devices.
General battery notice
DANGER
Personal computers manufactured by Lenovo contain a coin cell battery to provide power to the system
clock. In addition, many mobile products, such as notebook computers, utilize a rechargeable battery pack
to provide system power when in portable mode. Batteries supplied by Lenovo for use with your product
have been tested for compatibility and should only be replaced with approved parts.
Never attempt to open or service any battery. Do not crush, puncture, or incinerate batteries or short circuit
the metal contacts. Do not expose the battery to water or other liquids. Only recharge the battery pack
strictly according to instructions included in the product documentation.
Battery abuse or mishandling can cause the battery to overheat, which can cause gasses or flame to “vent”
from the battery pack or coin cell. If your battery is damaged, or if you notice any discharge from your battery
or the buildup of foreign materials on the battery leads, stop using the battery and obtain a replacement from
the battery manufacturer.
Batteries can degrade when they are left unused for long periods of time. For some rechargeable batteries
(particularly Lithium Ion batteries), leaving a battery unused in a discharged state could increase the risk of a
battery short circuit, which could shorten the life of the battery and also can pose a safety hazard. Do not let
rechargeable Lithium-Ion batteries completely discharge or store these batteries in a discharged state.
Do not attempt to disassemble or modify the battery pack. Attempting to do so can cause an explosion, or
liquid leakage from the battery pack. A battery pack other than the one specified by Lenovo, or a
disassembled or modified battery pack is not covered by the warranty.
If the rechargeable battery pack is incorrectly replaced, there is danger of an explosion. The battery pack
contains a small amount of harmful substances. To avoid possible injury:
Replace only with a battery of the type recommended by Lenovo.
Keep the battery pack away from fire.
Do not expose it to water or rain.
Do not attempt to disassemble it.
Do not short-circuit it.
Keep it away from children.
Do not drop the battery pack.
Do not put the battery pack in trash that is disposed of in landfills. When disposing of the battery, comply with
Rechargeable battery notice
DANGER
local ordinances or regulations.
The battery pack should be stored at room temperature, charged to approximately 30 to 50% of capacity.
We recommend that battery pack be charged about once per year to prevent overdischarge.
Lithium coin cell battery notice
Danger of explosion if battery is incorrectly replaced.
When replacing the lithium coin cell battery, use only the same or an equivalent type that is recommended
by the manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed
of.
Do not:
Throw or immerse into water
Heat to more than 100°C (212°F)
Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
The following statement applies to users in the state of California, U.S.A.
California Perchlorate Information:
Products containing manganese dioxide lithium coin cell batteries may contain perchlorate.
Perchlorate Material - special handling may apply, See
www.dtsc.ca.gov/hazardouswaste/perchlorate
Computers, ac power adapters, and many accessories can generate heat when turned on and when
batteries are charging. Notebook computers can generate a significant amount of heat due to their compact
size. Always follow these basic precautions:
When your computer is turned on or the battery is charging, the base, the palm rest, and some other
parts may become hot. Avoid keeping your hands, your lap, or any other part of your body in contact
with a hot section of the computer for any extended length of time. When you use the keyboard, avoid
keeping your palms on the palm rest for a prolonged period of time. Your computer generates some heat
during normal operation. The amount of heat depends on the amount of system activity and the battery
charge level. Extended contact with your body, even through clothing, could cause discomfort or even a
DANGER
Heat and product ventilation
DANGER
skin burn. Periodically take breaks from using the keyboard by lifting your hands from the palm rest; and
be careful not to use the keyboard for any extended length of time.
Do not operate your computer or charge the battery near flammable materials or in explosive
environments.
Ventilation slots, fans and/or heat sinks are provided with the product for safety, comfort, and reliable
operation. These features might inadvertently become blocked by placing the product on a bed, sofa,
carpet, or other flexible surface. Never block, cover, or disable these features.
When the ac power adapter is connected to an electrical outlet and your computer, it generates heat. Do
not place the adapter in contact with any part of your body while using it. Never use the ac power
adapter to warm your body. Extended contact with your body, even through clothing, may cause a skin
burn.
For your safety, always follow these basic precautions with your computer:
Keep the cover closed whenever the computer is plugged in.
Regularly inspect the outside of the computer for dust accumulation.
Do not operate your computer inside furniture, as this might increase the risk of overheating.
Airflow temperatures into the computer should not exceed 35°C (95°F).
Electrical current safety information
Electric current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
Do not use your computer during a lightning storm.
Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this
product during an electrical storm.
Connect all power cords to a properly wired and grounded electrical outlet.
Connect to properly wired outlets any equipment that will be attached to this product.
Whenever possible, use one hand only to connect or disconnect signal cables.
Never turn on any equipment when there is evidence of fire, water, or structural damage.
Disconnect the attached power cords, battery pack, and all the cables before you open the device
covers, unless instructed otherwise in the installation and configuration procedures.
Do not use your computer until all internal parts enclosures are fastened into place. Never use the
DANGER
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