Huawei Mate 8 User Manual page 180

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If the device standby time shortens significantly, replace the battery.
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The device has a built-in, non-removable battery. Do not attempt to remove it. Doing
so may damage the device. To replace the battery, take the device to an authorised
service centre.
Cleaning and maintenance
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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.
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Do not expose your device or accessories to extreme heat or cold, which may interfere
with proper function and may lead to fire or explosion.
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Avoid collision, which may lead to device malfunctions, overheating, fire, or explosion.
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Before you clean or maintain the device, stop using it, close all applications, and
disconnect all cables connected to it.
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Do not use chemical detergents, powders, or other agents (such as alcohol or 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.
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Do not place magnetic stripe cards, such as bankcards and phone cards, near the
device for extended periods of time. Otherwise, these cards may be damaged.
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Do not dismantle or attempt to modify the device or its accessories. This voids the
warranty and releases the manufacturer from liability for damage. In case of damage,
contact an authorised service centre for assistance or repair.
•
If the device screen is damaged, stop using the device immediately. Do not touch or
attempt to remove the broken parts. Contact an authorised service centre as soon as
possible.
Emergency calls
The availability of emergency calls is subject to the signal quality, service provider policy,
and local laws and regulations. Never rely solely on your device for critical
communications such as medical emergencies.
Safety information
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