Hisense U688 User Manual

Safety Precautions

Please read the safety precautions carefully to ensure the
correct use of your mobile phone.
Do not crash, throw, or puncture your mobile phone. Avoid the
falling, squeezing, and bending of your mobile phone.
Do not use your mobile phone in a moist environment, such as
the bathroom. Prevent your mobile phone from bei ng soa ked or
washed in liquid.
Do not switch on your mobile phone when it is prohibi ted to use
or when the phone may cause interference or danger.
For driving safety, only a passenger should operate the device
when the car is in motion and not the driver. Laws governing the
use of electronic devices by the driver may be applicable in your
country and/or jurisdiction.
Follow any rules or regulations in hospitals and health care
facilities. Switch off your mobile phone near medical apparatus.
Switch off your mobile phone in aircraft. The phone may cause
interference to control equipment of the aircraft.
Switch off your mobile phone near high-precision electronic
devices. The phone may affect the performance of these
devices.
Do not attempt to disassemble your mobile phone or its
accessories. Only qualified personnel are all owed to service or
repair the phone.
Do not place your mobile phone or its acc essori es i n contai ners
with a strong electromagnetic field.
Do not place magnetic storage media near your mobi le phone.
Radiation from the phone may era se the informati on stored on
them.
Keep the product away from direct sunlight. Do not put your

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mobile phone in a high-temperature place or use it i n a place
with flammable gas such as a gas station.
Keep your mobile phone and its accessories away from children.
Do not allow children to use your mobile phone without
guidance.
Use only approved batteries and chargers to avoi d the risk of
explosion.
Observe any laws or regulations on the use of wireless devices.
Respect others’ privacy and legal rights when using your
wireless device.
Strictly follow the relevant instructions of this manual while using
the USB cable. Otherwise your mobil e phone or PC may be
damaged.
This manual is for reference only, please refer to the material
object as standard.
Use a dry soft cloth to clean the produ ct; do not use water,

alcohols, detergent or any chemicals.

Please backup any important data, repair or other causes may
result in data loss.
Do not disconnect the product during me mory formatting or file
transfer operations. Otherwise, it may cause program failure or
files damage.

Power supply & Charging

Only use the accessories supplied with the appli ance. The use
of incompatible accessories may have seri ous consequences
and permanently damage your phone.
Only use the adapter supplied with the product.
This adapter is intended for indoor use only.
The mains cable is used as a connecting device. The wall outlet
should remain readily accessible and access to the outlet

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should not be blocked during use. To fully disconnect the
appliance from the mains, unplug the AC/DC cable from the wall
outlet. The wall outlet should be l ocated near t he appl i ance a nd
should remain readily accessible.
The ventilation should not be impeded by covering the
ventilation openings with items, such as newspapers,
tablecloths, curtains, etc. to avoid overheating and malfunction.
Maintain a clearance of at least 10cm around the appliance.
The apparatus should be used in a moderate climate.
The pho ne i s b ui lt wit h an i nte r nal rechargeable battery: do not
expose the product to excessive heat such as suns hine, fire or
the like.
Battery contains materials which are hazardous and harmful for
the environment.
Do not plug or unplug USB port with wet hands – risk of electric
shock.

Medical device

Implanted medical device such as pacemaker may be affected
by the product.
Avoid potential interference emitted from the product to the
implanted medical device, keeping the product at least 20 cm
away from the medical device.
Do not carry the product in the breast pocket.
Turn off the product immediately if you suspect any interference.

Hearing protection

This phone respects the current regulations
for limiting the maximum output volume.
Prolonged earphone listening at high
volume could lead to hearing damage!

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Stop using the product or lower the volume i f you feel yo ur ears
ringing.
Do not turn up the volume too high, doctors warn against
prolonged exposure to high volume.
Excessive sound pressure from earphones and headphones
can cause hearing loss.
To prevent possible hearing damage, do not
listen at high volume levels for long periods.
Please only use Hisense headphones with
your phone.

Copyright

This product is for private use only. Copying CDs or
downloading music, video or picture files for sale or other
business purposes may be a violation of copyright law.
Copyrighted materials, works of art and/or presentations may
require authorization to be fully or partially copi ed or recorded.
Please be aware of all such applicable laws concerning the
recording and use of such contents for your country and
jurisdiction.

Maintainence

Take care of the screen. The screen is covered with a glass
layer that may be scratched or broken.
To clean fingerprints or dust from the screen, it is recommended
to use a soft, non-abrasive cloth such as a camera l e ns clot h to
clean the screen.

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The package included

• Smartphone U688

• USB cable

• AC/DC Adaptor

• Battery

• Warranty Card

• Earphone

• Manual

Getting Started

Number Name

1 Menu Key
2 Home key
3 Back Key
4 Front camera

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5 Power key
6 Volume key
7 3.5mm Headset Jack
8 USB Connector
9 Rear camera

10 Flash

Inserting the SIM card, Battery and SD Card

1. Inset the sim card

2. Insert SD card

Y ou may also insert a micro SD card (up to 32GB) to expand the
storage memory of your phone.

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