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...

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....

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...

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...

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...

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....

106Safety
  Safety Information
Please read and observe the following information for safe and proper use of your 
phone and to prevent damage.
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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...

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...

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...

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 +...