Apple Macbook Retina 12 Inch Early2015 Essentials Manual

							 Chapter 4    Find answers 51
More resources, service, and support
You can find more information about your MacBook in System Report, in Apple Diagnostics, and 
through online resources.
System Report. To get information about your MacBook, use System Report. It shows you what 
hardware and software is installed, the serial number and operating system version, how much 
memory is installed, and more. To open System Report, choose Apple menu > About This Mac, 
then click System Report.
Apple Diagnostics. You can use Apple Diagnostics to help determine if there’s a problem with 
one of the computer’s components, such as the memory or processor. Apple Diagnostics helps 
to identify the potential source of a hardware issue and provides first steps to try and resolve it. 
Apple Diagnostics will also help you get in touch with Apple Support if you need more help.
Before using Apple Diagnostics, disconnect any external devices, such as a hard disk or external 
display. Be sure your MacBook is connected to the Internet.
To start Apple Diagnostics, restart your MacBook and hold down the D key as it starts up. If 
prompted, select the language for your location. Press the Return key or click the right arrow 
button. The basic Apple Diagnostics test takes a few minutes to complete. If an issue is found, a 
description of the issue appears with additional instructions. Make a note of any reference codes 
before you exit Apple Diagnostics.
Online resources. For online service and support information, go to www.apple.com/support. 
You can learn about Apple products, view online manuals, and check for software updates. 
Connect with other Apple users, and get service, support, and professional advice from Apple.
AppleCare support. If you need assistance, AppleCare representatives can help you with 
installing and opening apps, and with troubleshooting. Call the support center number nearest 
you (the first 90 days are complimentary). Have the purchase date and your MacBook serial 
number ready when you call.
Your 90 days of complimentary telephone support begins on the date of purchase.
CountryPhone numberWeb address
United States 1-800-275-2273www.apple.com/support
Australia (61) 1-300-321-456www.apple.com/au/support
Canada 1-800-263-3394English: 
www.apple.com/ca/support
French: 
www.apple.com/ca/fr/support
Ireland 1-800-804-062www.apple.com/ie/support
New Zealand 00800-7666-7666www.apple.com/nz/support
United Kingdom (44) 0844 209 0611www.apple.com/uk/support
Telephone numbers are subject to change, and local and national telephone rates may apply. A 
complete list is available on the web at www.apple.com/support/contact/phone_contacts.html.
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Safety, handling, and support
Important safety information
WARNING:  Failure to follow these safety instructions could result in fire, electric shock, or other 
injuries, or damage to your MacBook or other property. Read all safety information below 
before using your MacBook.
Built-in battery. Don’t attempt to replace or remove the battery yourself—you may damage 
the battery, which could cause overheating and injury. The lithium-ion battery in your MacBook 
should be replaced by Apple or an authorized service provider, and must be recycled or disposed 
of separately from household waste. Don’t expose your MacBook to extreme heat sources, such 
as radiators or fireplaces, where temperatures might exceed 212°F (100°C).
For information about battery service and recycling, go to 
www.apple.com/batteries/service-and-recycling .
Handling. Handle your MacBook with care. It is made of metal, glass, and plastic and has 
sensitive electronic components inside. Place your MacBook on a stable work surface that allows 
for adequate air circulation under and around the computer. Your MacBook can be damaged if 
dropped, burned, punctured, or crushed, or if it comes in contact with liquids, oils, and lotions. 
Don’t use a damaged MacBook, such as one with a cracked screen, as it may cause injury.
Liquid exposure. Keep your MacBook away from sources of liquid, such as drinks, oils, lotions, 
washbasins, bathtubs, shower stalls, and so on. Protect your MacBook from dampness, humidity, 
or wet weather, such as rain, snow, and fog. 
Repairing. Your MacBook doesn’t have any user-serviceable parts. Do not open or disassemble 
MacBook or attempt to repair it or replace any components. Disassembling your MacBook may 
damage it or may cause injury to you. If your MacBook needs service, is damaged, malfunctions, 
or comes in contact with liquid, contact Apple or an Apple-authorized repair center, such as an 
Apple Authorized Service Provider. If you attempt to open your MacBook, you risk damaging 
your computer, and such damage isn’t covered by the limited warranty on your MacBook.
Navigation. Maps, directions, and location-based apps depend on data services. These data 
services are subject to change and may not be available in all areas, resulting in maps, directions, 
or location-based information that may be unavailable, inaccurate, or incomplete. Compare 
the information provided on your MacBook to your surroundings and defer to posted signs to 
resolve any discrepancies. Do not use these services while performing activities that require your 
full attention. Always comply with posted signs and the laws and regulations in the areas where 
you are using your MacBook and always use common sense.
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Charging. Charge MacBook only with the included 29W USB-C Power Adapter, or with other 
third-party cables and power adapters that are compatible with USB-C and are compliant with 
applicable regulations. 
Using damaged cables or chargers, or charging when moisture is present, can cause fire,  
electric shock, injury, or damage to your MacBook or other property. When you use the included 
29W USB-C Power Adapter to charge your MacBook, make sure the USB-C Charge Cable (2m) is 
fully inserted into the power adapter before you plug the adapter into a power outlet.
Prolonged heat exposure. Your MacBook and its 29W USB-C Power Adapter may become 
very warm during normal use. The MacBook and its 29W USB-C Power Adapter comply with 
applicable surface temperature standards and limits defined by the International Standard for 
Safety of Information Technology Equipment (IEC 60950-1). However, even within these limits, 
sustained contact with warm surfaces for long periods of time may cause discomfort or injury.
Use common sense to avoid situations where your skin is in prolonged contact with a device 
or its power adapter when it’s operating or plugged into a power source. For example, don’t 
sleep with a device or power adapter when it’s plugged into a power source. Don’t operate 
your MacBook on a pillow, blanket, or other soft material that can block ventilation openings. 
It’s important to keep your MacBook and its 29W USB-C Power Adapter in a well-ventilated area 
when in use or charging.
Never push anything into the ventilation openings, as doing so may be dangerous and cause 
your computer to overheat. Never place anything over the keyboard when operating your 
MacBook. If your MacBook is on your lap and gets uncomfortably warm, remove it from your 
lap and place it on a stable, well-ventilated work surface. Take special care if you have a physical 
condition that affects your ability to detect heat against the body.
29W USB-C Power Adapter. To operate the 29W USB-C Power Adapter safely and reduce the 
possibility of heat-related injury or damage, do one of the following:
 •Plug the 29W USB-C Power Adapter directly into a power outlet.
 •If you’re using the Power Adapter Extension Cable, place the power adapter on a desk, table, or 
on the floor in a well-ventilated location.
Disconnect the power adapter and any cables if any of the following conditions exists:
 •You want to clean the case (use only the recommended procedure, described in Important 
handling information).
 •The power cord or plug becomes frayed or otherwise damaged.
 •Your MacBook or 29W USB-C Power Adapter is exposed to rain, excessive moisture, or liquid 
spilled into the case.
 •Your MacBook or 29W USB-C Power Adapter has been dropped, the case has been damaged, 
or you suspect that service or repair is required.
If debris gets onto the power port, remove it gently with a dry cotton swab.
29W USB-C Power Adapter specifications:
 •Frequency: 50 to 60 Hz, single phase
 •Line Voltage:  100 to 240 Vac
 •Output Voltage:  14.5 V DC, 2.0 A or 5.2 V DC, 2.4 A
Take special care if you have a physical condition that affects your ability to detect heat against 
the body.
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Hearing loss. Listening to sound at high volumes may damage your hearing. Background noise, 
as well as continued exposure to high volume levels, can make sounds seem quieter than they 
actually are. Use only compatible earbuds, headphones, or earpieces with your MacBook. Turn on 
the audio and check the volume before inserting anything into your ear. For more information 
about hearing loss, see www.apple.com/sound.
WARNING:  To prevent possible hearing damage, do not listen at high volume levels for 
long periods.
Radio frequency exposure. MacBook uses radio signals to connect to wireless networks. For 
information about radio frequency (RF) energy resulting from radio signals and steps you can 
take to minimize exposure, see www.apple.com/legal/rfexposure .
Medical device interference. MacBook contains components and radios that emit 
electromagnetic fields, which may interfere with pacemakers, defibrillators, or other medical 
devices. Maintain a safe distance of separation between your medical device and MacBook. 
Consult your physician and medical device manufacturer for information specific to your medical 
device. If you suspect MacBook is interfering with your pacemaker or any other medical device, 
stop using MacBook.
Medical conditions. If you have a medical condition that you believe could be affected by using 
MacBook (for example, seizures, blackouts, eyestrain, or headaches), consult with your physician 
prior to using MacBook. 
Repetitive motion. When you perform repetitive activities such as typing or playing games on 
MacBook, you may experience discomfort in your hands, arms, wrists, shoulders, neck, or other 
parts of your body. If you experience discomfort, stop using MacBook and consult a physician.
Choking hazard. Some MacBook accessories may present a choking hazard to small children. 
Keep these accessories away from small children.
High-consequence activities. Your MacBook is not intended for use where the failure of the 
computer could lead to death, personal injury, or severe environmental damage.
Explosive atmospheres. Charging or using your MacBook in any area with a potentially 
explosive atmosphere, such as areas where the air contains high levels of flammable chemicals, 
vapors, or particles (such as grain, dust, or metal powders), may be hazardous. Obey all signs 
and instructions.
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Important handling information
Operating environment. Operating your MacBook outside these ranges may affect performance:
 •Operating temperature: 50° to 95° F (10° to 35° C)
 •Storage temperature: -13° to 113° F (-25° to 45° C)
 •Relative humidity: 0% to 90% (noncondensing)
 •Operating altitude: Tested up to 10,000 feet (0 to 3048 meters)
Carrying your MacBook. If you carry your MacBook in a bag or briefcase, make sure there are 
no loose items (such as paper clips or coins) that could accidentally get inside the computer 
through vent openings or get stuck inside the USB-C port.
Using connectors and ports. Never force a connector into the USB-C port. When connecting a 
device, make sure the port is free of debris, that the connector matches the port, and that you 
have positioned the connector correctly in relation to the port.
Using the USB-C Charge Cable (2m). Certain usage patterns can contribute to the fraying or 
breaking of cables. The USB-C Charge Cable, like any other metal wire or cable, is subject to 
becoming weak or brittle if repeatedly bent in the same spot. Aim for gentle curves instead of 
angles in the cable. Regularly inspect the cable and connectors for any kinks, breaks, bends, or 
other damage. Should you find any such damage, discontinue use of the USB-C Charge Cable.
Storing your MacBook. If you are going to store your MacBook for an extended period of time, 
keep it in a cool location (ideally, 71° F or 22° C) and discharge the battery to 50 percent. When 
storing your computer for longer than five months, maintain the capacity of the battery by 
charging the battery to 50 percent every six months or so.
Cleaning your MacBook. When cleaning the outside of your MacBook and its components, first 
shut down your MacBook, then unplug the 29W USB-C Power Adapter. Then dampen a clean, 
soft, lint-free cloth to wipe the MacBook exterior. Avoid getting moisture in any openings. Don’t 
spray liquid directly on the computer. Don’t use aerosol sprays, solvents, abrasives, or cleaners 
containing hydrogen peroxide that might damage the finish.
Cleaning the MacBook screen. To clean your MacBook screen, first shut down your MacBook and 
unplug the 29W USB-C Power Adapter. Dampen a clean, soft, lint-free cloth with just water and 
wipe the screen. Don’t spray liquid directly on the screen.
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Understanding ergonomics
When you use the keyboard and mouse, your shoulders should be relaxed. Your upper arm and 
forearm should form an angle that is slightly greater than a right angle, with your wrist and hand 
in roughly a straight line.
Not this
This
Use a light touch when typing or using the trackpad and keep your hands and fingers relaxed. 
Avoid rolling your thumbs under your palms.
Not this
This
Change hand positions often to avoid fatigue. Some computer users might develop discomfort 
in their hands, wrists, or arms after intensive work without breaks. If you begin to develop 
chronic pain or discomfort in your hands, wrists, or arms, consult a qualified health specialist.
External mouse. If you use an external mouse, position the mouse at the same height as the 
keyboard and within a comfortable reach.
Chair. An adjustable chair that provides firm, comfortable support is best. Adjust the height of 
the chair so your thighs are horizontal and your feet are flat on the floor. The back of the chair 
should support your lower back (lumbar region). Follow the manufacturer’s instructions for 
adjusting the backrest to fit your body properly.
Built-in display. Adjust the angle of the display to minimize glare and reflections from overhead 
lights and windows. Do not force the display if you meet resistance. The display is not designed 
to open past 135 degrees.
You can adjust the brightness of the screen when you take the computer from one work location 
to another, or if the lighting in your work area changes.
For more information about ergonomics, see www.apple.com/about/ergonomics .
Regulatory information
Regulatory information, certification, and compliance marks specific to MacBook are available 
on-device. Choose Apple menu > About This Mac and click Support. Choose Important 
Information, then choose Regulatory Certification.
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FCC regulatory compliance
This device complies with part 15 of the FCC rules. Operation is subject to the following two 
conditions: (1) This device may not cause harmful interference, and (2) this device must accept 
any interference received, including interference that may cause undesired operation.
Note:  This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable 
protection against harmful interference in a residential installation. This equipment generates, 
uses, and can radiate radio frequency energy and, if not installed and used in accordance with 
the instructions, may cause harmful interference to radio communications. However, there is 
no guarantee that interference will not occur in a particular installation. If this equipment does 
cause harmful interference to radio or television reception, which can be determined by turning 
the equipment off and on, the user is encouraged to try to correct the interference by one or 
more of the following measures:
 •Reorient or relocate the receiving antenna.
 •Increase the separation between the equipment and receiver.
 •Connect the equipment to an outlet on a circuit different from that to which the receiver 
is connected.
 •Consult the dealer or an experienced radio/TV technician for help.
Important:  Changes or modifications to this product not authorized by Apple could void the 
electromagnetic compatibility (EMC) and wireless compliance and negate your authority to 
operate the product. 
This product has demonstrated compliance under conditions that included the use of 
compliant peripheral devices and shielded cables (including ethernet network cables) between 
system components. It is important that you use compliant peripheral devices and shielded 
cables between system components to reduce the possibility of causing interference to radios, 
television sets, and other electronic devices.
If necessary, contact Apple or take your MacBook to an Apple-authorized repair center, such as 
an Apple Authorized Service Provider. Or consult an experienced radio/television technician for 
additional suggestions.
Responsible party (contact for FCC matters only):
Apple Inc. Corporate Compliance
1 Infinite Loop, MS 91-1EMC
Cupertino, CA 95014
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Canadian regulatory compliance
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject 
to the following two conditions: (1) this device may not cause interference, and (2) this device 
must accept any interference, including interference that may cause undesired operation of 
the device.
Operation in the band 5150–5250 MHz is only for indoor use to reduce the potential for harmful 
interference to co-channel mobile satellite systems. 
Users are advised that high-power radars are allocated as primary users (that is, priority users)  
of the bands 5250–5350 MHz and 5650–5850 MHz and these radars could cause interference 
and/or damage to LE-LAN devices.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils  
radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :  
(1) l’appareil ne doit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter 
tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre 
le fonctionnement.
La bande 5150–5250 MHz est réservée uniquement pour une utilisation à l’intérieur afin de 
réduire les risques de brouillage préjudiciable aux systèmes de satellites mobiles utilisant les 
mêmes canaux.
Les utilisateurs sont avisés que les utilisateurs de radars de haute puissance sont désignée 
utilisateurs principaux (c.-à-d., qu’ils ont la priorité) pour les bandes 5250–5350 MHz et 
5650–5850 MHz et que ces radars pourraient causer du brouillage et/ou des dommages aux 
dispositifs LAN-EL.
Industry Canada Statement
Complies with CAN ICES-3 (B)/NMB-3(B).
EU compliance statement
Hereby, Apple Inc. declares that this wireless device is in compliance with the essential 
requirements and other relevant provisions of the R&TTE Directive.
A copy of the EU Declaration of Conformity is available at www.apple.com/euro/compliance .
Apple’s EU representative is Apple Distribution International, Hollyhill Industrial Estate,  
Cork, Ireland.
This device can be used in the European Community.
European Community Restrictions
This device is restricted to indoor use in the 5150 to 5350 MHz frequency range. 
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ENERGY STAR® Compliance Statement
As an ENERGY STAR partner, Apple has determined that standard configurations of this 
product meet the ENERGY STAR guidelines for energy efficiency. The ENERGY STAR program is 
a partnership with electronic equipment manufacturers to promote energy-efficient products. 
Reducing energy consumption of products saves money and helps conserve valuable resources.
MacBook is shipped with power management enabled, with the computer set to sleep after  
10 minutes of user inactivity. To wake your computer, click the trackpad or press any key on the 
keyboard. To change this setting, click the System Preferences icon  in the Dock, then click 
Energy Saver.
For more information about ENERGY STAR, go to www.energystar.gov .
Apple and the environment
At Apple, we recognize our responsibility to minimize the environmental impacts of our 
operations and products.
For information, go to www.apple.com/environment.
Regional disposal and recycling information
This symbol indicates that this product and/or battery should not be disposed of with household 
waste. When you decide to dispose of this product and/or its battery, do so in accordance with 
local environmental laws and guidelines.
For information about Apple’s recycling program, recycling collection points, restricted 
substances, and other environmental initiatives, visit www.apple.com/environment.
Información sobre eliminación de residuos y reciclaje
El símbolo de arriba indica que este producto y/o su batería no debe desecharse con los residuos 
domésticos. Cuando decida desechar este producto y/o su batería, hágalo de conformidad 
con las leyes y directrices ambientales locales. Para obtener información sobre el programa de 
reciclaje de Apple, puntos de recolección para reciclaje, sustancias restringidas y otras iniciativas 
ambientales, visite www.apple.com/la/environment o www.apple.com/mx/environment.
Brasil—Informações sobre descarte e reciclagem
O símbolo acima indica que este produto e/ou sua bateria não devem ser descartados no 
lixo doméstico. Quando decidir descartar este produto e/ou sua bateria, faça-o de acordo 
com as leis e diretrizes ambientais locais. Para informações sobre substâncias de uso restrito, 
o programa de reciclagem da Apple, pontos de coleta e telefone de informações, visite 
www.apple.com/br/environment.
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European Union—Disposal Information
The symbol above means that according to local laws and regulations your product and/or its 
battery shall be disposed of separately from household waste. When this product reaches its 
end of life, take it to a collection point designated by local authorities. The separate collection 
and recycling of your product and/or its battery at the time of disposal will help conserve 
natural resources and ensure that it is recycled in a manner that protects human health and 
the environment.
Battery disposal information
The battery in your MacBook should be serviced, replaced, or recycled by Apple or an authorized 
service provider, and must be recycled or disposed of separately from household waste 
according to your local environmental laws and guidelines. For information about battery service 
and recycling, go to www.apple.com/batteries/service-and-recycling.
Battery Charger Energy Efficiency
Software License Agreement
Use of MacBook constitutes acceptance of the Apple and third-party software license terms 
found at www.apple.com/legal/sla.
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