LG G4 User Guide

							100Safety
  FCC Hearing-Aid Compatibility (HAC) Regulations for 
Wireless Devices
On July 10, 2003, the U.S. Federal Communications Commission (FCC) Report and 
Order in WT Docket 01-309 modified the exception of wireless phones under the 
Hearing Aid Compatibility Act of 1988 (HAC Act) to require digital wireless phones 
be compatible with hearing-aids. The intent of the HAC Act is to ensure reasonable 
access to telecommunications services for persons with hearing disabilities. While 
some wireless phones are used near some hearing devices (hearing aids and cochlear 
implants), users may detect a buzzing, humming, or whining noise. Some hearing 
devices are more immune than others to this interference noise, and phones also 
vary in the amount of interference they generate. The wireless telephone industry has 
developed a rating system for wireless phones, to assist hearing device users to find 
phones that may be compatible with their hearing devices. Not all phones have been 
rated. Phones that are rated have the rating on their box or a label located on the box.
The ratings are not guarantees. Results will vary depending on the user's hearing 
device and hearing loss. If your hearing device happens to be vulnerable to interference, 
you may not be able to use a rated phone successfully. Trying out the phone with your 
hearing device is the best way to evaluate it for your personal needs.
M-Ratings: Phones rated M3 or M4 meet FCC requirements and are likely to generate 
less interference to hearing devices than phones that are not labeled. M4 is the better/
higher of the two ratings. 
T-Ratings: Phones rated T3 or T4 meet FCC requirements and are likely to generate 
less interference to hearing devices than phones that are not labeled. T4 is the better/
higher of the two ratings.
Hearing devices may also be rated. Your hearing device manufacturer or hearing health 
professional may help you find this rating. Higher ratings mean that the hearing device 
is relatively immune to interference noise. The hearing aid and wireless phone rating 
values are then added together. A sum of 5 is considered acceptable for normal use. A 
sum of 6 is considered for best use. 
						

							101Safety
In the above example, if a hearing aid meets the M2 level rating and the wireless phone 
meets the M3 level rating, the sum of the two values equal M5. This should provide the 
hearing aid user with “normal usage”while using their hearing aid with the particular 
wireless phone. “Normal usage”in this context is defined as a signal quality that’s 
acceptable for normal operation. The M mark is intended to be synonymous with the U 
mark. The T mark is intended to be synonymous with the UT mark. The M and T marks 
are recommended by the Alliance for Telecommunications Industries Solutions (ATIS). 
The U and UT marks are referenced in Section 20.19 of the FCC Rules. The HAC rating 
and measurement procedure are described in the American National Standards Institute 
(ANSI) C63.19 standard. 
To ensure that the Hearing Aid Compatibility rating for your phone is maintained, 
secondary transmitters such as Bluetooth and WLAN components must be disabled 
during a call.
For information about hearing aids and digital wireless phones: 
Wireless Phones and Hearing Aid Accessibility
http://www.accesswireless.org/
Gallaudet University, RERC
http://tap.gallaudet.edu/Voice/
FCC Hearing Aid Compatibility and Volume Control
http://www.fcc.gov/cgb/dro/hearing.html
The Hearing Aid Compatibility FCC Order
http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-168A1.pdf
Hearing Loss Association of America [HLAA]
http://hearingloss.org/content/telephones-and-mobile-devices  
						

							102Safety
  Caution: Avoid potential hearing loss.
Prolonged exposure to loud sounds (including music) is the most common cause of 
preventable hearing loss. Some scientific research suggests that using portable audio 
devices, such as portable music players and cellular telephones, at high volume settings 
for long durations may lead to permanent noise-induced hearing loss. This includes 
the use of headphones (including headsets, earbuds and Bluetooth® or other wireless 
devices). Exposure to very loud sound has also been associated in some studies with 
tinnitus (a ringing in the ear), hypersensitivity to sound and distorted hearing. Individual 
susceptibility to noise-induced hearing loss and other potential hearing problems varies. 
The amount of sound produced by a portable audio device varies depending on the 
nature of the sound, the device, the device settings and the headphones. You should 
follow some commonsense recommendations when using any portable audio device:
• Set the volume in a quiet environment and select the lowest volume at which you 
can hear adequately.
• When using headphones, turn the volume down if you cannot hear the people 
speaking near you or if the person sitting next to you can hear what you are 
listening to.
• Do not turn the volume up to block out noisy surroundings. If you choose to listen 
to your portable device in a noisy environment, use noise-cancelling headphones to 
block out background environmental noise.
• Limit the amount of time you listen. As the volume increases, less time is required 
before your hearing could be affected.
• Avoid using headphones after exposure to extremely loud noises, such as rock 
concerts, that might cause temporary hearing loss. Temporary hearing loss might 
cause unsafe volumes to sound normal.
• Do not listen at any volume that causes you discomfort. If you experience ringing in 
your ears, hear muffled speech or experience any temporary hearing difficulty after 
listening to your portable audio device, discontinue use and consult your doctor. 
						

							103Safety
  TIA Safety Information
The following is the complete TIA Safety Information for wireless handheld phones.
Exposure to Radio Frequency Signal
Your wireless handheld portable phone is a low power radio transmitter and receiver. 
When ON, it receives and sends out Radio Frequency (RF) signals. In August, 1996, 
the Federal Communications Commissions (FCC) adopted RF exposure guidelines with 
safety levels for handheld wireless phones. Those guidelines are consistent with the 
safety standards previously set by both U.S. and international standards bodies:
  ANSI C95.1 (1992) *
  NCRP Report 86 (1986)
 ICNIRP (1996)
* American National Standards Institute; National Council on Radiation Protection and 
Measurements; International Commission on Non-Ionizing Radiation Protection Those 
standards were based on comprehensive and periodic evaluations of the relevant 
scientific literature. For example, over 120 scientists, engineers, and physicians from 
universities, government health agencies, and industry reviewed the available body of 
research to develop the ANSI Standard (C95.1). The design of your phone complies with 
the FCC guidelines (and those standards).
Antenna Care
Use only the supplied or an approved replacement antenna. Unauthorized antennas, 
modifications, or attachments could damage the phone and may violate FCC 
regulations.
Tips on Efficient Operation
For your phone to operate most efficiently: Don’t touch the antenna unnecessarily when 
the phone is in use. Contact with the antenna affects call quality and may cause the 
phone to operate at a higher power level than otherwise needed.
Electronic Devices
Most modern electronic equipment is shielded from RF signals. However, certain  
						

							104Safety
electronic equipment may not be shielded against the RF signals from your wireless 
phone.
Pacemakers
The Health Industry Manufacturers Association recommends that a minimum separation 
of six (6) inches be maintained between a handheld wireless phone and a pacemaker to 
avoid potential interference with the pacemaker. These recommendations are consistent 
with the independent research by and recommendations of Wireless Technology 
Research. Persons with pacemakers:
• Should ALWAYS keep the phone more than six (6) inches from their pacemaker 
when the phone is turned ON;
• Should not carry the phone in a breast pocket; 
• Should use the ear opposite the pacemaker to minimize the potential for 
interference;
• Should turn the phone OFF immediately if there is any reason to suspect that 
interference is taking place.
Hearing Aids
Some digital wireless phones may interfere with some hearing aids. In the event of such 
interference, you may want to consult your service provider (or call the customer service 
line to discuss alternatives).
Other Medical Devices
If you use any other personal medical device, consult the manufacturer of your device 
to determine if it is adequately shielded from external RF energy. Your physician may be 
able to assist you in obtaining this information.
Health Care Facilities
Turn your phone OFF in health care facilities when any regulations posted in these 
areas instruct you to do so. Hospitals or health care facilities may use equipment that 
could be sensitive to external RF energy. 
						

							105Safety
Vehicles
RF signals may affect improperly installed or inadequately shielded electronic systems 
in motor vehicles. Check with the manufacturer or its representative regarding your 
vehicle. You should also consult the manufacturer of any equipment that has been 
added to your vehicle.
Posted Facilities
Turn your phone OFF in any facility where posted notices so require.
Aircraft
FCC regulations prohibit using your phone while in the air. Switch OFF your phone 
before boarding an aircraft.
Blasting Areas
To avoid interfering with blasting operations, turn your phone OFF when in a “blasting 
area”or in areas posted: “Turn off two-way radio”. Obey all signs and instructions.
Potentially Explosive Atmosphere
Turn your phone OFF when in any area with a potentially explosive atmosphere and 
obey all signs and instructions. Sparks in such areas could cause an explosion or fire 
resulting in bodily injury or even death. Areas with a potentially explosive atmosphere 
are often, but not always marked clearly. Potential areas may include: fueling areas 
(such as gasoline stations); below deck on boats; fuel or chemical transfer or storage 
facilities; vehicles using liquefied petroleum gas (such as propane or butane); areas 
where the air contains chemicals or particles (such as grain, dust, or metal powders); 
and any other area where you would normally be advised to turn off your vehicle 
engine.
For Vehicles Equipped with an Air Bag
An air bag inflates with great force. DO NOT place objects, including either installed or 
portable wireless equipment, in the area over the air bag or in the air bag deployment 
area. If in-vehicle wireless equipment is improperly installed and the air bag inflates, 
serious injury could result. 
						

							106Safety
  Safety Information
Please read and observe the following information for safe and proper use of your 
phone and to prevent damage.
&DXWLRQ
Violation of the instructions may cause minor or serious damage to the product.
• Do not disassemble or open crush, bend or deform, puncture or shred.
• Do not modify or remanufacture, attempt to insert foreign objects into the battery, 
immerse or expose to water or other liquids, expose to fire, explosion or other 
hazard. Such conditions may present the risk of fire or explosion.
• Only use the battery for the system for which it is specified.
• Only use the battery with a charging system that has been LG-approved and 
qualified with the system per IEEE-Std-1725. Use of an unqualified and non- 
LG-approved battery or charger may present a risk of fire, explosion, leakage, or 
other hazard.
• Do not short circuit a battery or allow metallic conductive objects to contact battery 
terminals.
• Replace the battery only with another battery that has been LGapproved and 
qualified with the system per this standard, IEEE-Std-1725. Use of an unqualified 
and non-LG-approved battery may present a risk of fire, explosion, leakage or other 
hazard.
• Only authorized service providers shall replace battery.(If the battery is non-user 
replaceable.)
• Promptly dispose of used batteries in accordance with local regulations.
• Battery usage by children should be supervised.
• Avoid dropping the phone, battery or exposing the phone or battery to a liquid. If the 
phone or battery is dropped, especially on a hard surface, or is exposed to a liquid 
or comes into contact with a sharp object take it to a service center for inspection.  
						

							107Safety
• Improper battery use may result in a fire, explosion or other hazard.
• At least, one of the Authentication methods may be implemented. (e.g. H/W, S/W, 
Mechanical, Hologram, etc.)
Charger and Adapter Safety
• The charger and adapter are intended for indoor use only.
• Insert the battery pack charger vertically into the wall power socket.
• Only use the LG-approved battery charger. Otherwise, you may cause serious 
damage to your phone.
• Use the correct adapter for your phone when using the battery pack charger 
abroad.
Battery Information and Care
• Always unplug the charger from the wall socket after the phone is fully charged to 
save unnecessary power consumption of the charger.
• Please read the manual of proper installation and removal of the battery.
• Please read the manual of specified charger about charging method.
• Do not damage the power cord by bending, twisting, or heating. Do not use the 
plug if it is loose as it may cause electric shock or fire. Do not place any heavy 
items on the power cord. Do not allow the power cord to be crimped as it may 
cause electric shock or fire.
• Unplug the power cord prior to cleaning your phone, and clean the power plug 
pin when it’s dirty. When using the power plug, ensure that it’s firmly connected. If 
not, it may cause excessive heat or fire. If you put your phone in a pocket or bag 
without covering the receptacle of the phone (power plug pin), metallic articles 
(such as a coin, paperclip or pen) may short-circuit the phone. Always cover the 
receptacle when not in use.
• Recharge the battery after long periods of non-use to maximize battery life. Battery 
life will vary due to usage pattern and environmental conditions.
• Please use only an LG-approved charging accessory to charge your LG phone. 
Improper handling of the charging port, as well as the use of an incompatible  
						

							108Safety
charger, may cause damage to your phone and void the warranty.
• Charging temperature range is regulated between 32°F (0°C) and 113°F (45°C). 
Do not charge the battery out of recommended temperature range. Charging out 
of recommended range might cause the generating heat or serious damage of 
battery. And also, it might cause the deterioration of battery's characteristics and 
cycle life.
• Do not use or leave the battery under the blazing sun or in heated car by sunshine. 
The battery may generate heat, smoke or flame. And also, it might cause the 
deterioration of battery’s characteristics or cycle life.
• The battery pack has protection circuit to avoid the danger. Do not use nearby the 
place where generates static electricity more than 100V which gives damage to the 
protection circuit. If the protection circuit were broken, the battery would generate 
smoke, rupture or flame.
• When the battery has rust, bad smell or something abnormal at first-time-using, do 
not use the equipment and go to bring the battery to the shop which it was bought.
• In case younger children use the battery, their parents should teach them how to 
use batteries according to the manual with care.
• If the skin or cloth is smeared with liquid from the battery, wash with fresh water. It 
may cause the skin inflammation. Remove and do not use the battery.
• Do not handle the phone with wet hands while it is being charged. It may cause an 
electric shock or seriously damage your phone.
• Do not place or answer calls while charging the phone as it may short-circuit the 
phone and/or cause electric shock or fire.
• The charger and adapter are intended for indoor use only.
• Insert the battery pack charger vertically into the wall power socket.
• Only use the LG-approved battery charger. Otherwise, you may cause serious 
damage to your phone and risk of overheating, fire or explosion may occur. 
• Use the correct adapter for your phone when using the battery pack charger 
abroad. 
						

							109Safety
• Talking on your phone for a long period of time may reduce call quality due to heat 
generated during use.
• Do not use harsh chemicals (such as alcohol, benzene, thinners, etc.) or detergents 
to clean your phone. This could cause a fire. Do not place or answer calls while 
charging the phone as it may short-circuit the phone and/or cause electric shock or 
fire. Don’t short-circuit the battery. Metallic articles such as a coin, paperclip or pen 
in your pocket or bag may short-circuit the + and – terminals of the battery (metal 
strips on the battery) upon moving. Short-circuit of the terminal may damage the 
battery and cause an explosion.
• Never use and unapproved battery since this could damage the phone and/or 
battery and could cause the battery to explode. Only use the batteries and chargers 
provided by LG. The warranty will not be applied to products provided by other 
suppliers. Only authorized personnel should service the phone and its accessories. 
Faulty installation or service may result in accidents and consequently invalidate the 
warranty.
Explosion, Shock, and Fire Hazards
• Do not put your phone in a place subject to excessive dust and keep the minimum 
required distance between the power cord and heat sources.
• Unplug the power cord prior to cleaning your phone, and clean the power plug pin 
when it’s dirty.
• When using the power plug, ensure that it’s firmly connected. If not, it may cause 
excessive heat or fire.
• If you put your phone in a pocket or bag without covering the receptacle of the 
phone (power plug pin), metallic articles (such as a coin, paperclip or pen) may 
short-circuit the phone and may cause an explosion. Always cover the receptacle 
when not in use.
• Don’t short-circuit the battery. Metallic articles such as a coin, paperclip or pen 
in your pocket or bag or contact with sharp objects including animal bites may 
short-circuit the + and – terminals of the battery (metal strips on the battery)