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Printed in Korea
GH68-36955A
English (EU). 04/2012. Rev. 1.0
GT-C3780
Mobile Phone
user manual
Some of the contents in this manual may differ from your phone
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depending on the software of the phone or your service provider.
Third party services may be terminated or interrupted at any time,
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and Samsung makes no representation or warranty that any
content or service will remain available for any period of time.
This product includes certain free/open source software.
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The exact terms of the licenses, disclaimers, acknowledgements
and notices are available on the Samsung's website
opensource.samsung.com.
www.sar-tick.com
This product meets applicable national
SAR limits of 2.0 W/kg. The specific
maximum SAR values can be found
in the SAR information section of this
manual.
When carrying the product or using it
while worn on your body, either use an
approved accessory such as a holster or
otherwise maintain a distance of 1.5 cm
from the body to ensure compliance with
RF exposure requirements. Note that the
product may be transmitting even if you
are not making a phone call.
Warning: Prevent electric shock, fire, and explosion
Do not use damaged power cords or plugs, or loose electrical sockets
Do not touch the power cord with wet hands, or disconnect the
charger by pulling on the cord
Do not bend or damage the power cord
Do not use your device while charging or touch your device with
wet hands
Do not short-circuit the charger or the battery
Do not drop or cause an impact to the charger or the battery
Do not charge the battery with chargers that are not approved by the
manufacturer
Do not engage in stressful or emotional conversations that may be
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distracting. Make people you are talking with aware you are driving and
suspend conversations that have the potential to divert your attention
from the road.
Use your device to call for help. Dial a local emergency number in the
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case of fire, traffic accident, or medical emergencies.
Use your device to help others in emergencies. If you see an auto
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accident, a crime in progress, or a serious emergency where lives are
in danger, call a local emergency number.
Call roadside assistance or a special, non-emergency assistance
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number when necessary. If you see a broken-down vehicle posing no
serious hazard, a broken traffic signal, a minor traffic accident where no
one appears injured, or a vehicle you know to be stolen, call roadside
assistance or another special, non-emergency number.
Proper care and use of your mobile device
Keep your device dry
Humidity and all types of liquids may damage device parts or electronic
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circuits.
Do not turn on your device if it is wet. If your device is already on, turn it
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off and remove the battery immediately (if the device will not turn off or
you cannot remove the battery, leave it as-is). Then, dry the device with
a towel and take it to a service centre.
Liquids will change the colour of the label that indicates water damage
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inside the device. Water damage to your device can void your
manufacturer’s warranty.
Do not use or store your device in dusty, dirty areas
Dust can cause your device to malfunction.
Do not store your device on slopes
If your device falls, it can be damaged.
Do not store your device in hot or cold areas. Use your device at
-20 °C to 50 °C
Your device can explode if left inside a closed vehicle, as the inside
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temperature can reach up to 80 °C.
Allow only qualified personnel to service your device
Allowing unqualified personnel to service your device may result in
damage to your device and will void your manufacturer’s warranty.
Handle SIM cards or memory cards with care
Do not remove a card while the device is transferring or accessing
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information, as this could result in loss of data and/or damage to the
card or device.
Protect cards from strong shocks, static electricity, and electrical noise
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from other devices.
Do not touch gold-coloured contacts or terminals with your fingers or
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metal objects. If dirty, wipe the card with a soft cloth.
Ensure access to emergency services
Emergency calls from your device may not be possible in some areas or
circumstances. Before travelling in remote or undeveloped areas, plan an
alternative method of contacting emergency services personnel.
Keep your personal and important data safe
While using your device, be sure to back up important data. Samsung
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is not responsible for data loss.
When disposing of your device, back up all data and then reset your
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device to prevent misuse of your personal information.
Carefully read the permissions screen when downloading applications.
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Be particularly cautious with applications that have access to many
functions or to a significant amount of your personal information.
Check your accounts regularly for unauthorised or suspicious use. If
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you find any sign of misuse of your personal information, contact your
service provider to delete or change your account information.
In the event your device is lost or stolen, change the passwords on
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your accounts to protect your personal information.
Avoid using applications from unknown sources and lock your device
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with a pattern, password, or PIN.
Do not distribute copyright-protected material
Do not distribute copyright-protected material that you have recorded
to others without the permission of the content owners. Doing this may
violate copyright laws. The manufacturer is not liable for any legal issues
caused by the user’s illegal use of copyrighted material.
Specific Absorption Rate (SAR) certification
information
THIS DEVICE MEETS INTERNATIONAL GUIDELINES FOR EXPOSURE
TO RADIO WAVES
Your mobile device is a radio transmitter and receiver. It is designed
not to exceed the limits for exposure to radio waves (radio frequency
electromagnetic fields) recommended by international guidelines. The
guidelines were developed by an independent scientific organisation
(ICNIRP) and include a substantial safety margin designed to assure the
safety of all persons, regardless of age and health.
The radio wave exposure guidelines use a unit of measurement known
as the Specific Absorption Rate, or SAR. The SAR limit for mobile devices
is 2.0 W/kg.
Tests for SAR are conducted using standard operating positions with the
device transmitting at its highest certified power level in all tested frequency
bands. The highest SAR values under the ICNIRP guidelines for this device
model are:
Maximum SAR for this model and conditions under which it was
recorded
Head SAR
0.664 W/kg
Body-worn SAR
0.429 W/kg
During use, the actual SAR values for this device are usually well below
the values stated above. This is because, for purposes of system efficiency
and to minimise interference on the network, the operating power of your
mobile device is automatically decreased when full power is not needed for
the call. The lower the power output of the device, the lower its SAR value.
A body-worn SAR test has been performed on this device with an approved
accessory or at a separation distance of 1.5 cm. To meet RF exposure
guidelines during body-worn operation, the device must be used with the
approved accessory or positioned at least 1.5 cm away from the body. If
you use an unapproved accessory, ensure that the accessory does not
contain any metal components and that it positions the device at least
1.5 cm away from the body.
Organisations such as the World Health Organisation and the US Food and
Drug Administration have suggested that if people are concerned and want
to reduce their exposure, they could use a hands-free accessory to keep
the wireless device away from the head and body during use, or reduce the
amount of time spent using the device.
Do not expose your device to direct sunlight for extended periods of time
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(such as on the dashboard of a car).
Store the battery at 0 °C to 40 °C.
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Do not store your device with such metal objects as coins, keys and
necklaces
Your device may become deformed or malfunction.
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If the battery terminals are in contact with metal objects, it may cause
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a fire.
Do not store your device near magnetic fields
Your device may malfunction or the battery may discharge from
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exposure to magnetic fields.
Magnetic stripe cards, including credit cards, phone cards, passbooks,
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and boarding passes, may be damaged by magnetic fields.
Do not use carrying cases or accessories with magnetic closures or
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allow your device to come in contact with magnetic fields for extended
periods of time.
Do not store your device near or in heaters, microwaves, hot cooking
equipment, or high pressure containers
The battery may leak.
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Your device may overheat and cause a fire.
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Do not drop your device or cause impacts to your device
The screen of your device may be damaged.
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If bent or deformed, your device may be damaged or parts may
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malfunction.
Do not use your device or applications for a while if the device is
overheated
Prolonged exposure of your skin to an overheated device may cause low
temperature burn symptoms, such as red spots and pigmentation.
If your device has a camera flash or light, do not use a flash close to
the eyes of people or pets
Using a flash close to the eyes may cause temporary loss of vision or
damage to the eyes.
Use caution when exposed to flashing lights
While using your device, leave some lights on in the room and do not
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hold the screen too close to your eyes.
Seizures or blackouts can occur when you are exposed to flashing
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lights while watching videos or playing Flash-based games for extended
periods. If you feel any discomfort, stop using the device immediately.
Reduce the risk of repetitive motion injuries
When you repetitively perform actions, such as pressing keys, drawing
characters on a touch screen with your fingers, or playing games, you may
experience occasional discomfort in your hands, neck, shoulders, or other
parts of your body. When using your device for extended periods, hold the
device with a relaxed grip, press the keys lightly, and take frequent breaks.
If you continue to have discomfort during or after such use, stop use and
see a physician.
Ensure maximum battery and charger life
Avoid charging batteries for more than a week, as overcharging may
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shorten battery life.
Over time, unused batteries will discharge and must be recharged
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before use.
Disconnect chargers from power sources when not in use.
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Use batteries only for their intended purposes.
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Use manufacturer-approved batteries, chargers, accessories and
supplies
Using generic batteries or chargers may shorten the life of your device or
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cause the device to malfunction.
Samsung cannot be responsible for the user’s safety when using
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accessories or supplies that are not approved by Samsung.
Do not bite or suck on the device or the battery
Doing so may damage the device or cause explosion.
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If children use the device, make sure that they use the device properly.
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Do not insert the device or supplied accessories into the eyes, ears,
or mouth
Doing so may cause suffocation or serious injuries.
When speaking on the device:
Hold the device upright, as you would with a traditional phone.
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Speak directly into the mouthpiece.
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Do not touch the device’s internal antenna. Doing so may result in
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reduced call quality or cause the device to emit unintended levels of
radio frequency (RF) energy.
Internal antenna
Protect your hearing and ears when using a headset
Excessive exposure to loud sounds can cause hearing
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damage.
Exposure to loud sounds while driving may distract your
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attention and cause an accident.
Always turn the volume down before plugging the
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earphones into an audio source and use only the
minimum volume setting necessary to hear your
conversation or music.
In dry environments, static electricity can build up in
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the headset. Avoid using headsets in dry environments
or touch a metal object to discharge static electricity
before connecting a headset to the device.
Use caution when using the device while walking or moving
Always be aware of your surroundings to avoid injury to yourself or others.
Do not carry your device in your back pockets or around your waist
You can be injured or damage the device if you fall.
Do not disassemble, modify, or repair your device
Any changes or modifications to your device can void your
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manufacturer’s warranty. For service, take your device to a Samsung
Service Centre.
Do not disassemble or puncture the battery, as this can cause
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explosion or fire.
Do not paint or put stickers on your device
Paint and stickers can clog moving parts and prevent proper operation. If
you are allergic to paint or metal parts of the product, you may experience
itching, eczema, or swelling of the skin. When this happens, stop using
the product and consult your physician.
When cleaning your device:
Wipe your device or charger with a towel or an eraser.
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Clean the terminals of the battery with a cotton ball or a towel.
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Do not use chemicals or detergents.
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Do not use the device if the screen is cracked or broken
Broken glass or acrylic could cause injury to your hands and face. Take
the device to a Samsung Service Centre to have it repaired.
Do not use the device for anything other than its intended use
Avoid disturbing others when using the device in public
Do not allow children to use your device
Your device is not a toy. Do not allow children to play with it as they
could hurt themselves and others, damage the device, or make calls that
increase your charges.
Install mobile devices and equipment with caution
Ensure that any mobile devices or related equipment installed in your
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vehicle are securely mounted.
Avoid placing your device and accessories near or in an air bag
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deployment area. Improperly installed wireless equipment can cause
serious injury when air bags inflate rapidly.
Do not use your device during a thunderstorm
Your device may malfunction and your risk of electric shock is increased.
Do not handle a damaged or leaking Lithium Ion (Li-Ion) battery
For safe disposal of your Li-Ion batteries, contact your nearest authorised
service centre.
Handle and dispose of batteries and chargers with care
Use only Samsung-approved batteries and chargers specifically
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designed for your device. Incompatible batteries and chargers can cause
serious injuries or damage to your device.
Never dispose of batteries or devices in a fire. Follow all local regulations
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when disposing of used batteries or devices.
Never place batteries or devices on or in heating devices, such as
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microwave ovens, stoves, or radiators. Batteries may explode when
overheated.
Never crush or puncture the battery. Avoid exposing the battery to
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high external pressure, which can lead to an internal short circuit and
overheating.
Protect the device, batteries, and chargers from damage
Avoid exposing your device and batteries to very cold or very hot
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temperatures.
Extreme temperatures can cause the deformation of the device and
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reduce the charging capacity and life of your device and batteries.
Prevent batteries from contacting metal objects, as this can create a
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connection between the + and – terminals of your batteries and lead to
temporary or permanent battery damage.
Never use a damaged charger or battery.
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Caution: Follow all safety warnings and regulations
when using your device in restricted areas
Turn off your device where prohibited
Comply with all regulations that restrict the use of a mobile device in a
particular area.
Do not use your device near other electronic devices
Most electronic devices use radio frequency signals. Your device may
interfere with other electronic devices.
Do not use your device near a pacemaker
Avoid using your device within a 15 cm range of a pacemaker if possible,
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as your device can interfere with the pacemaker.
If you must use your device, keep it at least 15 cm away from the
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pacemaker.
To minimise the possible interference with a pacemaker, use your device
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on the opposite side of your body from the pacemaker.
Do not use your device in a hospital or near medical equipment that
can be interfered with by radio frequency
If you personally use any medical equipment, contact the manufacturer of
the equipment to ensure the safety of your equipment from radio frequency.
If you are using a hearing aid, contact the manufacturer for
information about radio interference
Some hearing aids may be interfered with by the radio frequency of your
device. Contact the manufacturer to ensure the safety of your hearing aid.
Turn off the device in potentially explosive environments
Turn off your device in potentially explosive environments instead of
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removing the battery.
Always comply with regulations, instructions and signs in potentially
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explosive environments.
Do not use your device at refuelling points (service stations), near fuels
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or chemicals, and at blasting areas.
Do not store or carry flammable liquids, gases, or explosive materials in
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the same compartment as the device, its parts, or accessories.
Turn off your device when in an aircraft
Using your device in an aircraft is illegal. Your device may interfere with the
electronic navigation instruments of the aircraft.
Electronic devices in a motor vehicle may malfunction due to the
radio frequency of your device
Electronic devices in your car may malfunction due to radio frequency of
your device. Contact the manufacturer for more information.
Comply with all safety warnings and regulations
regarding mobile device usage while operating a
vehicle
While driving, safely operating the vehicle is your first responsibility.
Never use your mobile device while driving, if it is prohibited by law. For
your safety and the safety of others, practice good common sense and
remember the following tips:
Get to know your device and its convenience features, such as speed
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dial and redial. These features help you reduce the time needed to
place or receive calls on your mobile device.
Position your device within easy reach. Be able to access your wireless
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device without removing your eyes from the road. If you receive an
incoming call at an inconvenient time, let your voice mail answer it
for you.
Suspend calls in heavy traffic or hazardous weather conditions. Rain,
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sleet, snow, ice, and heavy traffic can be hazardous.
Do not take notes or look up phone numbers. Jotting down a “to do” list
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or flipping through your address book takes attention away from your
primary responsibility of driving safely.
Dial sensibly and assess the traffic. Place calls when you are not
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moving or before pulling into traffic. Try to plan calls when your car will
be stationary.
Safety precautions
To prevent injury to yourself and others or damage to your device, read all of the following information before using your device.
Phone layout
www.samsung.com
1
Volume key
In Idle mode, adjust the
phone’s volume; Make a
fake call (down); Send an
SOS message
See “Make fake calls”
See “Activate and send SOS
message”
2
Optical track pad
Scroll through menu options
(drag); Select the highlighted
menu option or confirm an
input (press)
3
Dial Key
Make or answer a call; In
Idle mode, retrieve recently
dialled, missed, or received
numbers;
4
Voice mail service key
In Idle mode, access voice
mails (press and hold)
5
Keypad lock key
In Idle mode, lock or unlock
the keypad (press and hold)
6
Softkeys
Perform actions indicated at
the bottom of the display
7
Power/End key
Turn the phone on and off
(press and hold); End a call;
In Menu mode, cancel input
and return to Idle mode
8
Camera key
In Idle mode, access the
Camera feature
9
Silent profile key
In ldle mode, activate or
deactivate the silent profile
(press and hold)
10
Alphanumeric keys
7
3
4
2
1
5
9
10
6
8
For more information, visit www.samsung.com/sar and search for your
device with the model number.
Correct disposal of this product
(Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European
countries with separate collection systems)
This marking on the product, accessories or literature indicates
that the product and its electronic accessories (e.g. charger,
headset, USB cable) should not be disposed of with other
household waste at the end of their working life.
To prevent possible harm to the environment or human health from
uncontrolled waste disposal, please separate these items from other types
of waste and recycle them responsibly to promote the sustainable reuse of
material resources.
Household users should contact either the retailer where they purchased
this product, or their local government office, for details of where and how
they can take these items for environmentally safe recycling.
Business users should contact their supplier and check the terms and
conditions of the purchase contract. This product and its electronic
accessories should not be mixed with other commercial wastes for
disposal.
This EEE is compliant with RoHS.
Correct disposal of batteries in this product
(Applicable in the European Union and other European
countries with separate battery return systems)
This marking on the battery, manual or packaging indicates
that the batteries in this product should not be disposed of
with other household waste at the end of their working life.
Where marked, the chemical symbols Hg, Cd or Pb indicate that the
battery contains mercury, cadmium or lead above the reference levels
in EC Directive 2006/66. If batteries are not properly disposed of, these
substances can cause harm to human health or the environment.
To protect natural resources and to promote material reuse, please
separate batteries from other types of waste and recycle them through your
local, free battery return system.