Huawei GR3 Quick Start Manual page 15

Do not smash or pierce the battery, or expose it to high

external pressure. Doing so may lead to a short circuit or
overheating.
Do not drop the device or battery. If the device or battery is

dropped, especially on a hard surface, and may be
damaged.
If the device standby time shortens significantly, replace the

battery.
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.
Cleaning and maintenance
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.
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.
Avoid collision, which may lead to device malfunctions,

overheating, fire, or explosion.
Before you clean or maintain the device, stop using it, stop

all applications, and disconnect all cables connected to it.
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.
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.
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.
11