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SGH-C420L
User’s Guide
• Depending on the software installed or your service provider or country,
some of the descriptions in this guide may not match your phone exactly.
• Depending on your country, your phone and accessories may appear different
from the illustrations in this guide.
World Wide Web
http://www.samsungmobile.com
English (LTN). 04/2007. Rev.1.0
Printed in Korea
Code No.: GH68-14405A
Installing the SIM card and battery
1. Remove the battery cover and insert the SIM card.
Battery cover
2. Install the battery and reattach the cover.
Battery
Charging the battery
1. Plug the supplied travel adapter.
To AC wall outlet
Note
: When you plug in the travel adapter, the charging indicator may
not appear for up to 5 minutes, but the battery is charging
properly.
2. When charging is finished, unplug the adapter.
Note
: Do not remove the battery from the phone without unplugging
the adapter first. Otherwise, the phone may be damaged.
Phone layout and key functions
Web access/
Confirm key
In Idle mode, accesses
the web browser.
Selects the highlighted
option or confirms input
indicated by the text
Makes and answers a
Voicemail server key
X
Alphanumeric keys
in a menu.
Soft keys
Perform functions
above the key.
Dial key
call. In Idle mode,
retrieves the most
recent calls.
X
Voicemail server
Keypad lock key
Keypad lock mode
4-way navigation keys
In Menu mode, scroll
through menu options.
In Idle mode, access the
following menus:
Up/Down:
Left: Create
Right
Power/End key
Turns the phone on or off
when held down. Also
ends a call.
Cancel/Clear key
Deletes characters from
the display. Returns the
display to the previous
menu level.
Sends an SOS message
when pressed four times
with the key locked.
X
SOS mode
Silent mode key
X Silent mode
:
Calendar
Key volume
Silent
mode
Voicemail
server
Keypad
lock mode
SOS
mode
Press and hold in Idle mode to disable all sounds on the phone.
To exit, press and hold this key again.
Press and hold 1 in Idle mode to access your voicemail server.
Lock the keypad, when pressed and held in Idle mode to ignore
accidental key pressing.
then
.
Press C four times in Idle mo de with the key l ocked to send an SOS
message to preset numbers. Once the SOS message is sent, the
phone will change to SOS mode and will receive calls only from the
registered recipients. Upon receiving a call from the SOS message
recipients, the phone will automatically answer the call. Press
exit SOS mode
To unlock, press the Unlock soft key and
.
to
Display
Your phone is in Idle mode when you are not on a call or using a menu.
You must be in Idle mode to dial a phone number.
Icons
Text and graphics
Menu Phonebook
Soft key function
indicators
Using the menus
In Idle mode, press the
To return to the
previous menu
level, press the
Back
soft key
or
Menu
soft key to enter the main menu.
Labels at the bottom corners of the
display show the current soft key
functions. Press the left soft key ( )
or right soft key ( ) to perform the
function indicated.
To exit the
menu without
changing the
menu settings,
C
.
Use the 4-way navigation keys to scroll up, down,
left, or right through the menu system, highlight
menu items, change feature settings, and play
games.
press this key.
Your phone displays the following status indicators on the top of the
screen:
Icon Description
Received signal strength
Call in progress
Out of your service area; you cannot make or receive calls
except for emergency calls
SOS message feature active
GPRS network
Alarm set
Silent mode
Ringer type
•None: Melody
•: Vibration
• : Vibration then melody
Home Zone, if registered for the appropriate service
Call diverting feature active
New text message
New multimedia message
New voicemail message
Battery power level
To select or modify a menu or feature:
1. In Idle mode, press the
Menu
soft key.
2. Press the Navigation keys to reach a desired menu and then press the
Select
soft key or .
3. If the menu contains any submenus, locate the one you want by
pressing the Navigation keys. Press the
Select
soft key or to enter
the submenu.
If the selected menu contains additional submenus, repeat this step.
4. Press the Navigation keys to find the setting of your choice.
5. Press the
Select
soft key or to confirm your chosen setting.
Shortcut numbers
You can quickly access the menu you want by using shortcut numbers.
The shortcut number displays in front of the menu name in Menu mode.
Switching on or off the phone
1. Press and hold for more than one second to switch on the phone.
2. To switch off the phone, press and hold for more than two seconds.
Adjusting the volume
1. In Idle mode, press the
2. Select
Sound settings → Incoming calls →
3. Press the Navigation keys to adjust the volume level.
Changing the display language
1. In Idle mode, press the
2. Select
Phone settings →
Menu
soft key.
Language → Text language
.
4. Press the
Save
While a call is in progress, press Up or
volume.
3. Select a language.
Changing a ringtone for calls
Making a call
1. In Idle mode, enter an area code and phone number, and press .
2. When you want to end the call, press .
1. In Idle mode, press the
2. Select
Sound settings →
My sounds
.
3. Select a ringtone and press the
Answering a call
1. When the phone rings, press the
Accept
call.
To reject the call, press the
Reject
To mute the ringtone, press and hold Up or
2. To end the call, press .
soft key or to answer a
soft key or .
Down
.
Redialing recent numbers
1. In Idle mode, press .
2. Press Up or
3. Press to dial the number.
Down
Menu map Entering text
1. Call log
1.1 Missed calls
1.2 Received calls
1.3 Dialled calls
1.4 Delete all
1.5 Call time
1.6 Call costs*
2. Network services
2.1 Call diverting
2.2 Call barring
2.3 Call waiting
2.4 Network selection
2.5 Caller ID
2.6 Band selection
3. Applications
3.1 Voice recorder
3.2 SIM-AT*
4. Sound settings
4.1 Incoming calls
4.2 Messages
4.3 Power on/off
4.4 Connection tone
4.5 Keyp ad tone
4.6 Minute minder
4.7 Silent mode
4.8 Alerts on call
5. Messages
5.1 Text messages
5.2 Multimedia messages
5.3 Push messages
5.4 Preset messages
5.5 Voice mail
5.6 Broadcast
5.7 Settings
5.8 SOS messages
5.9 Memory status
6. Fun box
6.1 WWW services
6.2 Media box
6.3 JAVA world
7. Planner
7.1 New memo
7.2 Calendar
7.3 To do list
7.4 Clock
7.5 Alarm
7.6 Calculator
7.7 Converter
7.8 Timer
7.9 Stopwatch
8. Camera
8.1 Take photos
8.2 My photos
8.3 Delete all
8.4 Settings
8.5 Memory status
9. Phone settings
9.1 Display
9.2 Greeting message
9.3 Language
9.4 Offline mode
9.5 Security
9.6 Auto redial
9.7 Anykey answer
9.8 Auto keypad lock
9.9 Reset settings
Press the
Phonebook soft
key in Idle mode.
1 Find name
2 FDN list
3 Add entry
4 Speed-dial list
5 Own number
6 Group setting
7 Management
8 SDN*
*
Shows only if supported by
your SIM card.
Changing the text input mode
In a text input field, press the right soft key until the input mode indicator
you want appears:
•: T9 mode
•: ABC mode
• : Number mode
• None: Symbol mode
T9 mode
1. Press 2 to 9 to start entering a word. Press each key once for one
letter.
The word you are entering appears on the display. It may change with
each keypress. Finish entering the word before editing or deleting any
keystrokes.
Example: To enter “Hello” in English word mode, press 4, 3, 5, 5, and
6
.
2. Press to insert a space and enter the next word.
Menu
soft key.
soft key.
Down
to adjust the earpiece
Menu
soft key.
Incoming calls → Default ringtones
Yes
soft key.
to scroll to the number you want.
Ring volume
.
or
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ABC mode
Press the keys labelled with the letter you want once for the first letter,
twice for the second letter, and so on.
For example, press 2 three times to enter “C” and 5 two times to enter “K.”
Number mode
Press the keys corresponding to the digits you want.
Symbol mode
Press the number keys corresponding to the symbol you want and press the
OK
soft key. You can press Up or
Down
to display more symbols.
Tips for entering text
• To move the cursor, press the Navigation keys.
• To delete characters one by one, press C. To delete all of the characters,
press and hold C.
• To insert a space between characters, press .
• To change case in T9 mode or ABC mode, press .
• To enter punctuation marks in T9 mode or ABC mode, press 1.
Sending an SMS message
1. In Idle mode, press the
Menu
soft key.
2. Select
Messages →
Text messages → Create
.
3. Enter the message text.
4. Press the
•
•
•
5. Press the
Options
Add media
Add emoticon
soft key and add items using the following options:
: add sounds, images, or animated images.
: add emoticons.
Preset messages
Options
soft key and select
: add text templates.
Send
.
6. Select an empty location.
7. Enter a destination number and press the OK soft key.
8. Press the
Send
soft key to send the message.
Taking a photo
1. In Idle mode, press the
2. Select
Camera →
3. Aim the lens at the subject and make any desired adjustments.
4. Press
to take a photo. The photo is saved automatically.
Press C to take another photo, or press the
photo.
Menu
Take photos
soft key.
.
Delete
soft key to delete the
Quick feature reference
This section provides brief explanations of features on your phone.
Feature Description Select
Find a contact Search for contacts in Phonebook. Phonebook
Create an
FDN list
Add a new
contact
Speed dial Assign speed dial numbers (2 to 9) for
Check your
own phone
numbers
Change
properties of
a caller group
Manage
contacts
Create a list of contacts to be used in
FDN (Fixed Dialing Number) mode, in
which the phone allows outgoing calls
only to the specified phone numbers.
Add a new contact to Phonebook.
Delete
eight of your most frequently dialled
numbers.
Check your phone numbers or assign a
name to them.
Select a ringtone and image for
incoming calls and messages from
members of a group. Also change the
group name.
Copy all contacts on the SIM card to
the phone’s memory, delete all
Phonebook contacts. You can also
check memory information for
Phonebook contacts.
> Find name
Phonebook
> FDN list
Phonebook
> Add entry
Phonebook
> Speed-dial list
Phonebook
> Own number
Phonebook
> Group setting
Phonebook
> Management
Feature Description Select
SDN (Service
Dialing
Numbers)
View recent
calls
Delete recent
calls
Call time display View the duration of recent calls you have
Call cost display View the cost of your calls. Menu
Network
services
Voic e memo Record voice memos and listen to them. Menu
Use the SIM
service
Access the list of service numbers
assigned by your service provider.
View the most recent calls you have
dialed, received, or missed.
Delete the call logs in each call type, or all
logs at once.
dialed and received. Also reset the time
counter.
Access network services offered by your
service provider.
Use a variety of additional services
offered by your service provider.
Phonebook
> SDN
Menu
> Call log
> Missed calls,
Received calls, or
Dialled calls
Menu
> Call log
> Delete all
Menu
> Call log
> Call time
> Call log
> Call costs
Menu
> Network services
> Applications
> Voice recorder
Menu
> Applications
> SIM-AT
Feature Description Select
Select ringtone
and volume
Select a
message tone
Select power
on/ off tone
Select
connection tone
Select key tone Select a tone which the phone sounds
Minute minder Set the phone to beep every minute
Silent mode Set how the phone acts to alert you to a
Alerts on call Set the phone to alert you when you
Select a ringtone for incoming calls, a
volume level, or an alert type.
Select the alert ringtone and alert type for
incoming SMS/MMS or set how often you
are informed of a new message.
Set the phone to sound when it is
switched on or off.
Set the phone to beep when a call is
connected to the system.
when you press a key.
during a call to keep you informed of the
length of your call.
specific event while in Silent mode.
receive a new message or when the time
for an alarm comes during a call.
Menu
> Sound settings
> Incoming calls
Menu
> Sound settings >
Messages
Menu
> Sound settings >
Power on/of f
Menu
> Sound settings >
Connection tone
Menu
> Sound settings >
Keypad tone
Menu
> Sound settings >
Minute minder
Menu
> Sound settings >
Silent mode
Menu
> Sound settings >
Alerts on call
Feature Description Select
Greeting
message
Language
selection
Offline mode Switch the phone to Offline mode. This
Security Protect the phone against unauthorized
Mobile tracker Track your phone when it is stolen or lost.
Auto redial Set the phone to make up to ten attempts
Anykey answer Answer an incoming call by pressing any
Enter the greeting message to be
displayed when the phone is switched on.
Select a language to be used for the
display text or text input mode.
mode is helpful when you want to use
your phone in a place where you are
not allowed to use mobile devices, such
as in an airplane and at a hospital.
use.
When someone tries to use your phone
with other SIM card, the phone will
automatically send the preset tracking
message to your family or friends.
to redial a phone number after an
unsuccessful call.
key, except for the
.
Reject
soft key and
Menu
> Phone settings
> Greeting
message
Menu
> Phone settings
> Language
Menu > Phone
settings > Offline
mode
Menu
> Phone settings
> Security
Menu
> Phone settings
> Security
> Mobile tracker
Menu
> Phone settings
> Auto redial
Menu
> Phone settings
> Anykey answer
Feature Description Select
Send SMS &
MMS messages
Read SMS &
MMS messages
Emoticon
templates
Create folders Create new folders and organize your
Delete
messages
Push messages Change the settings for the service, and
Message
templates
Create and send messages to other
mobile phones.
Read received, sent, or saved messages. Menu > Messages
Preset templates of frequently used
emoticons.
messages.
Delete messages in each message folder,
or all messages at once.
access or delete push messages.
Preset templates of frequently used
messages.
Menu > Messages
> Text messages or
Multimedia
messages
> Create
> Text messages or
Multimedia
messages
> Inbox, Outbox,
or Draft
Menu > Messages
> Text messages >
Emoticon
templates
Menu > Messages
> Multimedia
messages
> My folder
Menu > Messages
> Text messages or
Multimedia
messages
> Delete all
Menu > Messages
> Push messages
Menu > Messages
> Preset messages
Feature Description Select
Auto keypad
lock
Reset the phone Reset the phone to the factory default
Set the phone to automatically lock the
keypad in times of inactivity.
settings.
Menu
> Phone settings
> Auto keypad lock
Menu
> Phone settings
> Reset settings
Important safety precautions
Read these guidelines before using your wireless phone. Failure to comply with
them may be dangerous or illegal.
Drive safely at all times
Do not use a hand-held phone while driving; park the vehicle first.
Switching off when refueling
Do not use the phone at a refueling point (service station) or near fuels or
chemicals.
Switching off in an aircraft
Wireless phones can cause interference. Using them in an aircraft is both illegal
and dangerous.
Switching off near all medical equipment
Hospitals and health care facilities may be using equipment that could be
sensitive to external RF energy. Follow any regulations or rules in force.
Interference
All wireless phones may be subject to interference, which could affect their
performance.
Feature Description Select
Voicemail Access your voicemail server and listen to
Broadcast
messages
Messaging
options
SOS message Activate the SOS message feature. Enter
Message
memory status
Web browser Launch and configure the web browser. Menu > Fun box
Access media
files
Delete all media
files
Funbox memory
status
Java
applications
messages on the network.
Change settings for the service and
access broadcast messages.
Set options for using messaging services. Menu > Messages
recipients and select the repeat mode.
Check memory information for messages. Menu > Messages
Access sounds or images in your phone’s
memory.
Delete sounds and images in each media
box.
Check the amount of memory in use for
sounds and images.
Access the embedded Java games and
downloaded Java applications.
Menu > Messages
> Voice mail
Menu > Messages
> Broadcast
> Settings
Menu > Messages
> SOS messages
> Memory status
> WWW services
Menu > Fun box
> Media box
> My photos,
Downloaded
images, or Sounds
Menu > Fun box
> Media box
> Delete all
Menu > Fun box
> Media box
> Memory status
Menu > Fun box
> JAVA world
Special regulations
Follow any special regulations in force in any area and always switch off your
phone whenever it is forbidden to use it.
Water resistance
Your phone is not water-resistant. Keep it dry.
Sensible use
Use only in the normal position (held to the ear). Avoid unnecessary contact
with the antenna when the phone is switched on.
Emergency calls
Key in the emergency number for your present location, then press . Do
not end the call until given permission to do so.
Small children and your phone
Keep the phone and all its parts including accessories out of reach of small
children.
Accessories and batteries
Use only Samsung-approved batteries and accessories, such as headsets and
PC data cables. Use of any unauthorized accessories could damage your phone
and may be dangerous.
CAUTION
Risk of explosion if a battery is replaced by an incorrect type.
Dispose used batteries according to the instructions.
At very high volume, prolonged listening to a headset can damage
your hearing.
Qualified service
Only qualified service personnel may repair your phone.
Feature Description Select
Schedule an
item
Calendar Keep track of daily or monthly
Task list Create a list of tasks and assign a
Time and date Set the current time and date manually
Alarm Set an alarm to sound at a specific time. Menu > Planner
Calculator Perform basic arithmetic functions. Menu > Planner
Converter Do conversions such as length and
Timer Set a period of time for the phone to
Stopwatch Measure elapsed time. Menu > Planner
Camera Take photos in various modes, and
Display settings Change settings for the display and
Create a new item. Menu > Planner
schedule.
deadline to each task.
and set your local time zone.
temperature.
count down.
access saved photos in jpeg format.
You can also check memory information
for the photos.
backlight.
> New memo
Menu > Planner
> Calendar
Menu > Planner
> To do list
Menu > Planner
> Clock
> Alarm
> Calculator
Menu > Planner
> Converter
Menu > Planner
> Timer
> Stopwatch
Menu > Camera
Menu
> Phone settings
> Display
SAR information
Your wireless phone is a radio transmitter and receiver. It is designed and
manufactured not to exceed the emission limits for exposure to radio
frequency (RF) energy set by the European Union (EU) Council. These limits
are part of comprehensive guidelines and establish permitted levels of RF
energy for the general population. The guidelines are based on the safety
standards that were developed by independent scientific organizations
through periodic and through evaluation of scientific studies.
The standards include a substantial safety margin designed to assure the
safety of all persons, regardless of age and health.
The exposure standard for wireless phones employs a unit of measurement
known as Specific Absorption Rate (SAR). The SAR limit set by the EU Council
is 2.0 W/kg
*
The SAR limit for mobile phones used by the public is 2.0 watts/kilogram (W/kg)
averaged over ten grams of body tissue. The limit incorporates a substantial margin of
safety to give additional protection for the public and to account for any variations in
measurements. The SAR values may vary, depending on national reporting requirements
and the network band.
*
. The highest SAR value for this model phone was 1.07 W/kg.