LG G4 User Guide

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upon moving. Shortcircuit of the terminal may damage the battery and cause an 
explosion.
General Notice
• Using a damaged battery or placing a battery in your mouth or animal's mouth may 
cause serious injury including a fire or explosion.
• Do not place items containing magnetic components such as a credit card, phone 
card, bank book, or subway ticket near your phone. The magnetism of the phone 
may damage the data stored in the magnetic strip.
• Talking on your phone for a long period of time may reduce call quality due to heat 
generated during use.
• When the phone is not used for a long period time, store it in a safe place with the 
power cord unplugged.
• Using the phone in proximity to receiving equipment (i.e., TV or radio) may cause 
interference to the phone.
• Do not use the phone if the antenna is damaged. If a damaged antenna contacts 
skin, it may cause a slight burn. Please contact an LG Authorized Service Center to 
replace the damaged antenna.
• Do not immerse your phone in water, liquid, or expose to high humidity. If this 
happens, turn it off immediately and remove the battery. Immediately, take it to an 
LG Authorized Service Center.
• Do not paint your phone.
• The data saved in your phone might be deleted due to careless use, repair of the 
phone, or upgrade of the software. Please backup your important phone numbers. 
(Ringtones, text messages, voice messages, pictures, and videos could also be 
deleted.) The manufacturer is not liable for damage due to the loss of data.
• When you use the phone in public places, set the ringtone to vibration so you don't 
disturb others.
• Do not turn your phone on or off when putting it to your ear. 
						

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• Use accessories, such as earphones and headsets, with caution. Ensure that cables 
are tucked away safely and do not touch the antenna unnecessarily.
  FDA Consumer Update
   The U.S. Food and Drug Administration’s Center for Devices and Radiological 
Health Consumer Update on Mobile Phones:
1. Do wireless phones pose a health hazard?
The available scientific evidence does not show that any health problems are associated 
with using wireless phones. There is no proof, however, that wireless phones are 
absolutely safe.Wireless phones emit low levels of Radio Frequency (RF) energy in 
the microwave range while being used. They also emit very low levels of RF when in 
standby mode.Whereas high levels of RF can produce health effects (by heating tissue), 
exposure to low level RF that does not produce heating effects causes no known 
adverse health effects. Many studies of low level RF exposures have not found any 
biological effects. Some studies have suggested that some biological effects may occur, 
but such findings have not been confirmed by additional research. In some cases, other 
researchers have had difficulty in reproducing those studies, or in determining the 
reasons for inconsistent results.
2. What is the FDA's role concerning the safety of wireless phones?
Under the law, the FDA does not review the safety of radiation-emitting consumer 
products such as wireless phones before they can be sold, as it does with new drugs 
or medical devices. However, the agency has authority to take action if wireless phones 
are shown to emit Radio Frequency (RF) energy at a level that is hazardous to the user. 
In such a case, the FDA could require the manufacturers of wireless phones to notify 
users of the health hazard and to repair, replace, or recall the phones so that the hazard 
no longer exists. Although the existing scientific data do not justify FDA regulatory 
actions, the FDA has urged the wireless phone industry to take a number of steps, 
including the following: 
						

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• Support needed research into possible biological effects of RF of the type emitted 
by wireless phones;
• Design wireless phones in a way that minimizes any RF exposure to the user that is 
not necessary for device function; and
• Cooperate in providing users of wireless phones with the best possible information 
on possible effects of wireless phone use on human health.
The FDA belongs to an interagency working group of the federal agencies that have 
responsibility for different aspects of RF safety to ensure coordinated efforts at the 
federal level. The following agencies belong to this working group:
• National Institute for Occupational Safety and Health
• Environmental Protection Agency
• Occupational Safety and Health Administration
• National Telecommunications and Information Administration
The National Institutes of Health participates in some interagency working group 
activities, as well. The FDA shares regulatory responsibilities for wireless phones with 
the Federal Communications Commission (FCC). All phones that are sold in the United 
States must comply with FCC safety guidelines that limit RF exposure.
The FCC relies on the FDA and other health agencies for safety questions about 
wireless phones.
The FCC also regulates the base stations that the wireless phone networks rely upon. 
While these base stations operate at higher power than do the wireless phones 
themselves, the RF exposures that people get from these base stations are typically 
thousands of times lower than those they can get from wireless phones. Base stations 
are thus not the subject of the safety questions discussed in this document.
3. What kinds of phones are the subject of this update?
The term “wireless phone”refers here to handheld wireless phones with built-in 
antennas, often called “cell”, “mobile”, or “PCS”phones. These types of wireless phones 
can expose the user to measurable Radio Frequency (RF) energy because of the short 
distance between the phone and the user’s head. 
						

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These RF exposures are limited by FCC safety guidelines that were developed with 
the advice of the FDA and other federal health and safety agencies. When the phone 
is located at greater distances from the user, the exposure to RF is drastically lower 
because a person's RF exposure decreases rapidly with increasing distance from 
the source. The so-called “cordless phones,”which have a base unit connected to 
the telephone wiring in a house, typically operate at far lower power levels, and thus 
produce RF exposures far below the FCC safety limits.
4. What are the results of the research done already?
The research done thus far has produced conflicting results, and many studies have 
suffered from flaws in their research methods. Animal experiments investigating the 
effects of Radio Frequency (RF) energy exposures characteristic of wireless phones 
have yielded conflicting results that often cannot be repeated in other laboratories. A 
few animal studies, however, have suggested that low levels of RF could accelerate the 
development of cancer in laboratory animals. However, many of the studies that showed 
increased tumor development used animals that had been genetically engineered or 
treated with cancercausing chemicals so as to be pre-disposed to develop cancer in 
the absence of RF exposure. Other studies exposed the animals to RF for up to 22 
hours per day. These conditions are not similar to the conditions under which people 
use wireless phones, so we do not know with certainty what the results of such studies 
mean for human health. Three large epidemiology studies have been published since 
December 2000. Between them, the studies investigated any possible association 
between the use of wireless phones and primary brain cancer, glioma, meningioma, or 
acoustic neuroma, tumors of the brain or salivary gland, leukemia, or other cancers. 
None of the studies demonstrated the existence of any harmful health effects from 
wireless phone RF exposures. However, none of the studies can answer questions 
about long-term exposures, since the average period of phone use in these studies was 
around three years. 
						

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5. What research is needed to decide whether RF exposure from wireless 
phones poses a health risk?
A combination of laboratory studies and epidemiological studies of people actually 
using wireless phones would provide some of the data that are needed. Lifetime animal 
exposure studies could be completed in a few years. However, very large numbers of 
animals would be needed to provide reliable proof of a cancer promoting effect if one 
exists. Epidemiological studies can provide data that is directly applicable to human 
populations, but ten or more years follow-up may be needed to provide answers about 
some health effects, such as cancer. This is because the interval between the time of 
exposure to a cancer-causing agent and the time tumors develop — if they do — may 
be many, many years. The interpretation of epidemiological studies is hampered by 
difficulties in measuring actual RF exposure during day-to-day use of wireless phones. 
Many factors affect this measurement, such as the angle at which the phone is held, or 
which model of phone is used.
6. What is the FDA doing to find out more about the possible health effects of 
wireless phone RF?
The FDA is working with the U.S. National Toxicology Program and with groups of 
investigators around the world to ensure that high priority animal studies are conducted 
to address important questions about the effects of exposure to Radio Frequency 
(RF) energy. The FDA has been a leading participant in the World Health Organization 
International Electro Magnetic Fields (EMF) Project since its inception in 1996. An 
influential result of this work has been the development of a detailed agenda of 
research needs that has driven the establishment of new research programs around 
the world. The project has also helped develop a series of public information documents 
on EMF issues. The FDA and the Cellular Telecommunications & Internet Association 
(CTIA) have a formal Cooperative Research And Development Agreement (CRADA) to do 
research on wireless phone safety. The FDA provides the scientific oversight, obtaining 
input from experts in government, industry, and academic organizations. CTIA-funded 
research is conducted through contracts with independent investigators. The initial  
						

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research will include both laboratory studies and studies of wireless phone users. The 
CRADA will also include a broad assessment of additional research needs in the context 
of the latest research developments around the world.
7. How can I find out how much Radio Frequency energy exposure I can get by 
using my wireless phone?
All phones sold in the United States must comply with Federal Communications 
Commission (FCC) guidelines that limit Radio Frequency (RF) energy exposures. The 
FCC established these guidelines in consultation with the FDA and the other federal 
health and safety agencies. The FCC limit for RF exposure from wireless phones is 
set at a Specific Absorption Rate (SAR) of 1.6 watts per kilogram (1.6 W/kg). The FCC 
limit is consistent with the safety standards developed by the Institute of Electrical and 
Electronic Engineering (IEEE) and the National Council on Radiation Protection and 
Measurement. The exposure limit takes into consideration the body’s ability to remove 
heat from the tissues that absorb energy from the wireless phone and is set well below 
levels known to have effects. Manufacturers of wireless phones must report the RF 
exposure level for each model of phone to the FCC. The FCC website (http://www.fcc.
gov/oet/rfsafety) gives directions for locating the FCC identification number on your 
phone so you can find your phone’s RF exposure level in the online listing. 
8. What has the FDA done to measure the Radio Frequency energy coming from 
wireless phones?
The Institute of Electrical and Electronic Engineers (IEEE) is developing a technical 
standard for measuring the Radio Frequency (RF) energy exposure from wireless 
phones and other wireless handsets with the participation and leadership of FDA 
scientists and engineers. The standard, “Recommended Practice for Determining 
the Spatial-Peak Specific Absorption Rate (SAR) in the Human Body Due to Wireless 
Communications Devices: Experimental Techniques”, sets forth the first consistent test 
methodology for measuring the rate at which RF is deposited in the heads of wireless 
phone users. The test method uses a tissue-simulating model of the human head. 
Standardized SAR test methodology is expected to greatly improve the consistency  
						

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of measurements made at different laboratories on the same phone. SAR is the 
measurement of the amount of energy absorbed in tissue, either by the whole body 
or a small part of the body. It is measured in watts/kg (or milliwatts/g) of matter. This 
measurement is used to determine whether a wireless phone complies with safety 
guidelines.
9. What steps can I take to reduce my exposure to Radio Frequency energy from 
my wireless phone?
If there is a risk from these products — and at this point we do not know that there 
is — it is probably very small. But if you are concerned about avoiding even potential 
risks, you can take a few simple steps to minimize your exposure to Radio Frequency 
(RF) energy. Since time is a key factor in how much exposure a person receives, 
reducing the amount of time spent using a wireless phone will reduce RF exposure. 
If you must conduct extended conversations by wireless phone every day, you could 
place more distance between your body and the source of the RF, since the exposure 
level drops off dramatically with distance. For example, you could use a headset and 
carry the wireless phone away from your body or use a wireless phone connected to a 
remote antenna. Again, the scientific data does not demonstrate that wireless phones 
are harmful. But if you are concerned about the RF exposure from these products, you 
can use measures like those described above to reduce your RF exposure from wireless 
phone use. 
10. What about children using wireless phones?
The scientific evidence does not show a danger to users of wireless phones, including 
children and teenagers. If you want to take steps to lower exposure to Radio Frequency 
(RF) energy, the measures described above would apply to children and teenagers 
using wireless phones. Reducing the time of wireless phone use and increasing the 
distance between the user and the RF source will reduce RF exposure. Some groups 
sponsored by other national governments have advised that children be discouraged 
from using wireless phones at all. For example, the government in the United Kingdom 
distributed leaflets containing such a recommendation in December 2000. They noted  
						

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that no evidence exists that using a wireless phone causes brain tumors or other ill 
effects. Their recommendation to limit wireless phone use by children was strictly 
precautionary; it was not based on scientific evidence that any health hazard exists.
11. What about wireless phone interference with medical equipment?
Radio Frequency (RF) energy from wireless phones can interact with some electronic 
devices. For this reason, the FDA helped develop a detailed test method to measure 
Electro Magnetic Interference (EMI) of implanted cardiac pacemakers and defibrillators 
from wireless telephones. This test method is now part of a standard sponsored by the 
Association for the Advancement of Medical Instrumentation (AAMI). The final draft, a 
joint effort by the FDA, medical device manufacturers, and many other groups, was 
completed in late 2000. This standard will allow manufacturers to ensure that cardiac 
pacemakers and defibrillators are safe from wireless phone EMI. The FDA has tested 
hearing aids for interference from handheld wireless phones and helped develop a 
voluntary standard sponsored by the Institute of Electrical and Electronic Engineers 
(IEEE). This standard specifies test methods and performance requirements for hearing 
aids and wireless phones so that no interference occurs when a person uses a 
“compatible”phone and a “compatible” hearing aid at the same time. This standard was 
approved by the IEEE in 2000.
The FDA continues to monitor the use of wireless phones for possible interactions with 
other medical devices. Should harmful interference be found to occur, the FDA will 
conduct testing to assess the interference and work to resolve the problem.
12. Where can I find additional information?
For additional information, please refer to the following resources: FDA web page on 
wireless phones (http://www.fda.gov/cellphones/) Federal Communications Commission 
(FCC) RF Safety Program (http://www.fcc.gov/oet/rfsafety) International Commission 
on Non-lonizing Radiation Protection (http://www.icnirp.de) World Health Organization 
(WHO) International EMF Project (http://www.who.int/emf)National Radiological 
Protection Board (UK) (http://www.hpa.org.uk/radiation/) 
						

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  Driving
Check the laws and regulations on the use of wireless phones in the areas where you 
drive and always obey them. Also, if using your phone while driving, please observe the 
following:
• Give full attention to driving – driving safely is your first responsibility;
• Use hands-free operation, if available;
• Pull off the road and park before making or answering a call if driving conditions or 
the law require it.
  10 Driver Safety Tips
Your wireless phone gives you the powerful ability to communicate by voice almost 
anywhere, anytime. An important responsibility accompanies the benefits of wireless 
phones, one that every user must uphold. When operating a car, driving is your first 
responsibility. When using your wireless phone behind the wheel of a car, practice good 
common sense and remember the following tips:
1  Get to know your wireless phone and its features such as speed dial and redial. 
Carefully read your instruction manual and learn to take advantage of valuable 
features most phones offer, including automatic redial and memory. Also, work to 
memorize the phone keypad so you can use the speed dial function without taking 
your attention off the road.
2  When available, use a hands-free device. A number of hands-free wireless phone 
accessories are readily available today.Whether you choose an installed mounted 
device for your wireless phone or a speaker phone accessory, take advantage of 
these devices if available to you.
3  Make sure you place your wireless phone within easy reach and where you can 
reach it without removing your eyes from the road. If you get an incoming call at an 
inconvenient time, if possible, let your voicemail answer it for you. 
						

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4  Suspend conversations during hazardous driving conditions or situations. Let the 
person you are speaking with know you are driving; if necessary, suspend the call 
in heavy traffi c or hazardous weather conditions. Rain, sleet, snow, and ice can 
be hazardous, but so is heavy traffi c. As a driver, your fi rst responsibility is to pay 
attention to the road.
5  Don’t take notes or look up phone numbers while driving. If you are reading an 
address book or business card, or writing a “to-do”list while driving a car, you are 
not watching where you are going. It is common sense. Do not get caught in a 
dangerous situation because you are reading or writing and not paying attention to 
the road or nearby vehicles.
6  Dial sensibly and assess the traffi c; if possible, place calls when you are not 
moving or before pulling into traffi c. Try to plan your calls before you begin your trip 
or attempt to coincide your calls with times you may be stopped at a stop sign, red 
light, or otherwise stationary. But if you need to dial while driving, follow this simple 
tip – dial only a few numbers, check the road and your mirrors, then continue.
7  Do not engage in stressful or emotional conversations that may be distracting. 
Stressful or emotional conversations and driving do not mix; they are distracting 
and even dangerous when you are behind the wheel of a car. Make people you are 
talking with aware you are driving and if necessary, suspend conversations which 
have the potential to divert your attention from the road.
8  Use your wireless phone to call for help. Your wireless phone is one of the greatest 
tools you can own to protect yourself and your family in dangerous situations – with 
your phone at your side, help is only three numbers away. Dial 911 or other local 
emergency number in the case of fi re, traffi c accident, road hazard, or medical 
emergency. Remember, it’s a free call on your wireless phone!
9  Use your wireless phone to help others in emergencies. Your wireless phone 
provides you a perfect opportunity to be a “Good Samaritan”in your community. 
If you see an auto accident, crime in progress or other serious emergency where 
lives are in danger, call 911 or other local emergency number, as you would want