LG V20 User Guide

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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 hearingaids. 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.  
						

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A sum of 5 is considered acceptable for normal use. A sum of 6 is considered for 
best use.
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  
						

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Caution:  
Av oid 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-canceling 
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.  
						

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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).
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.  
						

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Electronic Devices
Most modern electronic equipment is shielded from RF signals. However, certain 
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.  
						

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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.  
						

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Part 15.19 statement
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.
Part 15.21 statement
Changes or modifications that are not expressly approved by the manufacturer for 
compliance could void the user’s authority to operate the equipment.
Part 15.105 statement
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 into 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.  
						

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Safety Information
Please read and observe the following information for safe and proper use of your 
phone and to prevent damage.
Caution
Violation of the instructions may cause minor or serious 
damage to the product.
Charger and Adapter Safety
•	The charger and adapter are intended for indoor use only.
•	 Insert the battery 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 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 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 approved charging accessory to charge your LG phone. 
Improper handling of the charging port, as well as the use of an incompatible 
charger, may cause damage to your phone and void the warranty.  
						

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•	Charging	temperature	r ange	is	r egulated	bet ween	0	°C/32	°F	and	45 °C/113 °F.	D
o	no t	char ge	the	batt ery	out	o f	r ecommended	t emperature	range. Char

ging 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.
•	 If the skin or cloth is smeared with liquid from the battery, wash with fresh 
water. It may cause the skin inflammation.
•	 Please take your phone to an authorized service center immediately if this 
occurs.
•	 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.
•	 Talking on your phone for a long period of time may reduce call quality due to 
heat generated during use.
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.  
						

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General Notice
•	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 immerse your phone in water, liquid, or expose to high humidity. 
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.
•	 Use accessories, such as earphones and headsets, with caution. Ensure that 
cables are tucked away safely and do not touch the antenna unnecessarily.