AT&T Z431 Cell Phone User Manual


 
•   Do not try to make a call while the temperature of the battery is above 113°F 
(45°C).
•   Take care not to put your handset in your back pocket and then sit on it. Also, 
do not put your phone at the bottom of a bag where it may be subjected to
excessive weight or pressure. Doing so may damage the LCD and camera lens.
•   The operation of some medical electronic devices, such as hearing aids and 
pacemakers, may be affected if a handset is used in close proximity with them.
Observe any warnings and recommendations from the manufacturer of any
such device.
•   Do not leave the handset discharged or without a battery for a long time; 
otherwise, data may be erased.
•   Your phone contains metal; individuals with certain conditions have been known 
to develop an itch, rash, or eczema from exposure to certain metals.
CTIA Requirements
•   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 hazards.
•   Only use the battery in the system for which it is specied.
•   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 approved for the 
device per this standard: IEEE-Std-1725-2006. Use of an unapproved battery
may present the risk of fire, explosion, leakage, or other hazard.
•   Promptly dispose of used batteries in accordance with local regulations.
56 Care and Maintenance
•   Battery usage by children should be supervised.
•   Avoid dropping the phone or battery. If the device or battery is dropped, 
especially on a hard surface, take it to a service center for inspection.
•   Improper battery use may result in a re, explosion, or other hazard.
•   For devices that utilize a USB port as a charging source, the device’s user manual 
shall include a statement to the effect that the phone shall only be connected
to CTIA certified adapters, products that bear the USB-IF logo, or products that
have completed the USB-IF compliance program.
Aircraft Safety
•   When traveling by air, power off your phone prior to takeoff.
•   Obey all posted signs and crew instructions regarding the use of mobile phones 
on the aircraft.
•   Be sure to check the alarm settings to ensure that the phone will not 
automatically power on during the flight.
Hospital Safety
•   Switch off your phone and remove the battery in areas where the use of mobile 
phones is prohibited.
•   Follow all instructions regarding the use of handsets in a medical facility.
57Care and Maintenance