l Do not drop the device or battery. If the device or battery is dropped, especially on a hard
surface, it may be damaged.
l If the device standby time shortens significantly, replace the battery.
l The device has a built-in, non-removable battery. Do not attempt to remove the battery,
otherwise the device may be damaged. To replace the battery, take the device to an authorized
service center.
l Use the battery only with a charging system that is IEEE-Std-1725 standard qualified. The use
of an unqualified battery or charger may lead to fire, explosion, leakage, or other hazards.
l Replace the battery only with an IEEE-Std-1725 standard qualified battery. The use of an
unqualified battery may lead to fire, explosion, leakage, or other hazards.
l Do not disassemble or open, crush, bend or deform, puncture or shred the battery. Otherwise,
it may lead to electrolyte leakage, overheating, fire, or explosion.
l Do not solder battery poles or dismantle the battery. Doing so may lead to electrolyte leakage,
excessive heat, fire, or explosion.
Cleaning and maintenance
l Keep the device and accessories dry. Do not attempt to dry it with an external heat source,
such as a microwave oven or hair dryer.
l Do not expose your device or accessories to extreme heat or cold. These environments may
interfere with proper function and may lead to fire or explosion.
l Avoid collision, which may lead to device malfunctions, overheating, fire, or explosion.
l Before you clean or maintain the device, stop using it, stop all applications, and disconnect all
cables connected to it.
l Do not use any chemical detergent, powder, or other chemical agents (such as alcohol and
benzene) to clean the device or accessories. These substances may cause damage to parts or
present a fire hazard. Use a clean, soft, and dry cloth to clean the device and accessories.
l Do not place magnetic stripe cards, such as credit cards and phone cards, near the device for
extended periods of time. Otherwise the magnetic stripe cards may be damaged.
l Do not dismantle or remanufacture the device and its accessories. This voids the warranty and
releases the manufacturer from liability for damage. In case of damage, contact an authorized
service center for assistance or repair.
l If the device screen is broken in a collision, immediately stop using the device. Do not touch or
attempt to remove the broken parts. Promptly contact an authorized service center.
Environmental protection
l The device and its accessories (if included), such as the power adapter, headset, and battery
should not be disposed of with household garbage.
l Disposal of the device and its accessories is subject to local regulations. Support proper
collection and recycling.
Appendix
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