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• Keep the battery away from excessive heat and direct sunlight. Do not place it on or in heating
devices, such as microwave ovens, stoves, or radiators. Batteries may explode if overheated.
• Do not attempt to modify or remanufacture the battery, insert foreign objects into it, or
immerse or expose it to water or other liquids. Doing so may lead to fire, explosion, or other
hazards.
• If the battery leaks, ensure that the electrolyte does not make direct contact with your skins or
eyes. If the electrolyte touches your skins or splashes into your eyes, immediately flush with
clean water and consult a doctor.
• In case of battery deformation, color change, or overheating while charging or storing,
immediately stop using the device and remove the battery. Continued use may lead to battery
leakage, fire, or explosion.
• Do not put batteries in fire as they may explode. Damaged batteries may also explode.
• Dispose of used batteries in accordance with local regulations. Improper battery use may lead
to fire, explosion, or other hazards.
• Do not allow children or pets to bite or suck the battery. Doing so may result in damage
or explosion.
• 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, it may be damaged.
• If the device standby time shortens significantly, replace the battery.
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 oraccessories. 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.
• 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.
Emergency calls
• The availability of emergency calls is subject to your cellular network quality, service
provider policy, and local laws and regulations. Never rely solely on your device for critical
communications like medical emergencies.
1.
Use only NUU-approved batteries, chargers, and cables to charge your phone.
Unapproved chargers or cables can cause the battery to explode or damage the device.
2. Use only NUU-approved batteries, chargers and cables. Use unapproved batteries,
chargers and cables may cause safety issue and the warranty will be lost.
3. You can recharge your battery many times, but all batteries have a limited lifespan. If you
notice a significant deterioration in your phone’s battery life, you will need to purchase
a replacement battery for replacement. If the battery is built-in in the phone, do not
attempt to remove built-in batteries and contact an authorized NUU service center for
a replacement.
4. Your phone may become warm after prolonged use or when exposed to high ambient
temperatures. If your phone becomes hot to the touch, unplug the USB cable, disable
non-essential features, and avoid prolonged skin contact. Place your phone in a cool
location and allow it to cool down to room temperature.
5. Charging times may vary depending on the ambient temperature and the remaining
battery level.
6. Avoid using your phone when it is charging. Do not cover your phone or the charger
when it is charging.
只供 FCC 認証使用
只供 FCC 認証使用