* 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
Printed in Korea
Code No.:GH68-XXXXXA
English. 03/2006. Rev. 1.0
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SGH-X688
User’s Guide
)
5
C
F
Important
safety
precautions
Failure to comply with the following
precautions may be dangerous or illegal.
Drive safely at all times
Do not use a hand-held phone while driving. Park
the vehicle first.
Switch off the phone when refuelling
Do not use the phone at a refuelling point (service
station) or near fuels or chemicals.
Switch off in an aircraft
Wireless phones can cause interference. Using them
in an aircraft is both illegal and dangerous.
Switch off the phone near all medical
equipment
Hospitals or health care facilities may be using
equipment that could be sensitive to external radio
frequency energy. Follow any regulations or rules in
force.
Interference
All wireless phones may be subject to interference,
which could affect their performance.
Be aware of special regulations
Meet any special regulations in force in any area and
always switch off your phone whenever it is forbidden
to use it, or when it may cause interference or danger.
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 call
Key in the emergency number for your present
location, then press .
Keep your phone away from small children
Keep the phone and all its parts, including accessories,
out of the reach of small children.
Accessories and batteries
Use only Samsung-approved batteries and
accessories, such as headsets and PC data cables. Use
of any unauthorised accessories could damage you or
your phone and may be dangerous.
• The phone could explode if the battery is replaced with an
incorrect type.
• Dispose of used batteries according to the manufacturer’s
instructions.
At very high volumes, prolonged listening to a
headset can damage your hearing.
Qualified service
Only qualified service personnel may repair your
phone.
For more detailed safety information, see "Health and
safety information" on page 76.
Important safety precautions
1
About this Guide
This User’s Guide provides you with condensed
information about how to use your phone. To quickly
learn the basics for your phone, please refer to “Get
started” and “Step outside the phone.”
In this guide, the following instruction icons appear:
Indicates that you need to pay careful attention
to the subsequent information regarding safety or
phone features.
[
<
2
Indicates that you can get more information on
the referenced page.
Indicates that you need to press the Navigation
→
keys to scroll to the specified option and then
select it.
Indicates a key on the phone. For example,
]
[]
Indicates a soft key, whose function is displayed
>
on the phone screen. For example, <
Menu
• Camera and camcorder
Use the camera module on your
phone to take a photo or record a
video.
Special
>
features of your phone
•Music player
Play music files using your phone
as a music player.
•Web browser
Access the wireless web to get upto-the-minute information and a
wide variety of media content.
• Get personal with photo caller
ID
See who’s calling you when their
very own photo displays.
•Calendar
Keep track of your daily, weekly,
and monthly schedule.
Special features of your phone
• Name card
Create name cards with your
number and profile. Whenever
introducing yourself to others, use
this convenient electronic name
card.
• Multimedia Message Service (MMS)
Send and receive MMS messages with a
combination of text, images, video, and audio.
•Java
Enjoy Java™-based embedded
games and download new games.
• Voice recorder
Record memos or sounds.
•Alarm
Use your phone as an alarm clock
to wake you up in the morning or
notify you of an impending event.
3
Contents
Unpack 6
Make sure you have each item
Your phone 6
Keys, features, and locations
Get started 7
First steps to operating your phone
Install and charge the phone ..................................... 7
Power on or off........................................................ 8
Keys and display ..................................................... 9
Access menu functions ............................................ 11
Customise your phone ............................................. 12
p. 35
p. 37
p. 38
p. 39
p. 40
p. 40
p. 41
p. 41
p. 42
p. 42
p. 42
p. 42
p. 43
p. 44
p. 44
p. 44
p. 44
1 Create message
2 My messages
3 Templates
4 Delete all
5 Settings
6 Memory status
6 File manager
1 Images
2 Videos
3 Music
4 Sounds
5 Other files
6 Memory status
7 Calendar
p. 44
8 Camera
p. 45
p. 47
9 Settings
p. 50
p. 50
1 Time and date
p. 51
2 Phone sett ings
p. 53
3 Display settings
4 Sound settings
p. 53
5 Network services
p. 53
6 Security
p. 54
7 Connection settings
p. 55
8 Reset settings
p. 55
p. 56
p. 56
* Shows only if supported by your
SIM card.
p. 56
p. 60
p. 65
p. 65
p. 65
p. 66
p. 67
p. 69
p. 71
p. 73
p. 74
5
Unpack
Make sure you have each item
You r phon e
Keys, features, and locations
Phone
Battery
Tra v e l A d a p t e r
User’s Guide
You can obtain various accessories from
your local Samsung dealer.
The items supplied with your phone
and the accessories available at your
Samsung dealer may vary, depending
on your country or service provider.
6
Earpiece
Main display
Navigation keys
(Up/Down/
Left/Right)
Headset jack
Left soft key
Volu me key
Dial key
Alphanumeric
keys
Special
function keys
Web access/
Confirm key
Right soft key
Power on/off/
Menu exit key
Correct key
Microphone
Camera lens
Camera key
External display
Get started
First steps to operating your phone
SIM card information
When you subscribe to a cellular network, you receive
a plug-in SIM (Subscriber Identity Module) card
loaded with your subscription details, such as your
PIN, and available optional services.
Install and charge the phone
Remove the battery
cover.
Insert the SIM card.
Install the battery.
Reattach the cover.
Plug the travel adapter into the phone.
If the phone is already
on, first turn it off by
pressing and holding
[].
Make sure that the
gold-coloured contacts
on the card are face
down.
Plug the adapter into a standard AC wall outlet.
7
Get started
When the phone is completely charged (the
battery icon becomes still), unplug the adapter
from the power outlet.
Power on or off
Switch on
1. Open the phone.
Remove the adapter from the phone.
Low battery indicator
When the battery is low:
• a warning tone sounds,
• the low battery message displays, and
• the empty battery icon blinks.
If the battery level becomes too low, the phone
automatically turns off. Recharge your battery.
8
Do not turn on
the phone when
mobile phone
use is prohibited.
Switch off
2. Press and hold [ ].
3. If necessary, enter the PIN and
1. Open the phone.
2. Press and hold [ ].
press <
OK
>.
Keys and display
Keys
Perform the function indicated on the
bottom line of the display.
In Idle mode, access your favourite menus
directly.
In Menu mode, scroll through menu options.
In Idle mode, launch the web browser.
In Menu mode, select the highlighted menu
option or confirm input.
Make or answer a call.
In Idle mode, retrieve numbers recently
dialled, missed, or received.
Delete characters from the display or an
item in an application.
Press and hold to switch the phone on or off.
End a call.
In Menu mode, cancel input and return the
phone to Idle mode.
p. 65
Enter numbers, letters, and some special
characters.
In Idle mode, press and hold
your voicemail server. Press and hold [
enter an international call prefix.
Enter special characters.
In Idle mode, press and hold [ ] to activate
or deactivate Silent mode. Press and hold
[ ] to enter a pause between numbers.
Adjust the phone volume.
In Idle mode, with the phone open, adjust
the keypad tone volume. With the phone
closed, press and hold to turn on the
external display.
In Idle mode, press and hold to turn on the
camera.
In Camera mode, take a photo or record a
video.
[1]
to access
0
] to
Get started
9
Get started
Display
Layout
Icons
10
Menu Contacts
*
Icons
display var ious icons.
Text and graphics
display messages,
instructions, and
information you enter.
Soft key function
indicators
show the current functions
assigned to the soft keys.
Received signal strength
Call in progress
Out of your service area; you
cannot make or receive calls
GPRS network
Roaming network
Call diverting feature active
Home Zone, if registered for the
appropriate service
Office Zone, if registered for the
appropriate service
Call ringer set to vibration
Silent mode (Vibration)
Silent mode (Mute)
Mute mode, during a call
New message
New voicemail
Alarm set
Battery power level
* Depending on your country or service provider, the icons
shown on the display may vary.
Access menu functions
Use the soft
keys
The roles of the soft keys vary
depending on the function you are
using. The bottom line of the
display indicates their current role.
Select Back
Select an
option
1. Press a desired soft key.
2. Press the Navigation keys to
move to the next or previous
option.
3. Press <
Select
> or [] to
confirm the function displayed
or option highlighted.
4. To exit, choose either of the
following methods.
Back
• Press <
> to move up
one level.
• Press [ ] to return to Idle
mode.
Get started
Press the left
soft key to select
the highlighted
option.
Press the right
soft key to return
to the prev ious
menu level.
Use shortcuts
Press the number key
corresponding to the option you
want.
11
Get started
Customise your phone
Display
language
Call ringer
melody
12
1. In Idle mode, press <
and select
settings
2. Select a language.
1. In Idle mode, press <
and select
settings
Ringtone
2. Select a ringtone category.
3. Select a ringtone.
4. Press <
Settings → Phone
→
Language
Settings → Sound
→
Incoming call →
.
Save
>.
Menu
Menu
Idle mode
>
.
>
wallpaper
Menu mode
skin colour
You can set wallpaper for the idle
screen on the main display.
Menu
Menu
>
>
1. In Idle mode, press <
and select
settings
display
2. Select an image or a video clip
category.
3. Select an image or a video clip.
4. Press <
5. Press <
You can change the colour for the
display components, such as title
bars and highlight bars.
1. In Idle mode, press <
and select
settings
2. Select a colour pattern.
Settings → Display
→
Wallpaper → Main
Select
>.
Save
>.
Settings → Display
→
Skin
.
Menu
shortcuts
Silent mode
You can set the Navigation keys to
function as shortcuts to access
your favourite menus.
Menu
1. In Idle mode, press <
and select
settings
2. Select a key.
3. Select a menu to be assigned to
the key.
You can switch the phone to Silent
mode to avoid disturbing other
people.
Press and hold [ ] in Idle mode.
Settings → Phone
→
Shortcuts
>
.
Phone lock
You can protect the phone against
unauthorised use with a phone
password. The phone will require
the password on power-up.
Menu
1. In Idle mode, press <
and select
Security → Change
password
2. Enter the default password,
00000000
3. Enter a new 4- to 8-digit
password and press <
4. Enter the new password again
and press <
5. Select
6. Select
7. Enter the password and press
OK
<
Settings →
.
, and press <OK>.
OK
Phone lock
Enable
.
>.
>.
.
OK
>
>.
Get started
13
Make/Answer calls
Make a call
Answer a call
Adjust the
volume during
a call
14
1. In Idle mode, enter an area
2. Press [ ].
3. To end the call, press [].
1. When the phone rings, press
2. To end the call, press [].
Press [ / ].
code and phone number.
[].
Step outside the phone
Begin with your camera, the music player, the web, and
other special features
Use the camera
Take a photo
View a photo
1. Open the phone.
2. In Idle mode, press and hold
[ ] to turn on the camera.
3. Aim the lens at the subject and
make any desired adjustments.
4. Press [] or [ ] to take a
photo. The photo is saved
automatically.
5. Press <
1. In Idle mode, press <
2. Select the photo you want.
Preview
another photo.
and select
Images → Photos
> to take
Menu
File manager →
.
>
Record a video
Play a video
1. In Idle mode, press and hold
]
to turn on the camera.
[
1
2. Press [
mode.
3. Press [] or [
recording.
4. Press [], <>, or [
stop recording. The video is
saved automatically.
5. Press <
another video.
1. In Idle mode, press <
and select
Videos → Video clips
2. Select the video you want.
] to switch to Record
]
to start
Preview
> to record
Menu
File manager →
.
]
to
>
Play music
Copy music
files to the
phone
Create a play
list
Use these methods:
• Download from the wireless
p. 42
web
• Download from a computer
using the optional Samsung PC
Studio
User’s Guide
1. In Idle mode, press <
and select
Music player
2. Press <
Add to playlist →
Add files
3. Press [] to select the files
you want and press <
Samsung PC Studio
Applications →
Options
.
Menu
.
> and select
Add all
Add
>
or
>.
Step outside the phone
15
Step outside the phone
Play music files
16
1. From the music player screen,
press [].
2. During playback, use the
following keys:
•: pauses or resumes
playback.
• Left: returns to the previous
file.
• Right: skips to the next file.
• Up: opens the play list.
•/ : adjusts the volume.
• Down: stops playback.
Browse the web
Using a built-in web browser, you easily access the
wireless web to get a variety of up-to-date services
and information and to download web content.
Launch the
web browser
Navigate the
web
In Idle mode, press [].
• To scroll through browser items,
press [Up] or [Down].
• To select an item, press [].
• To return to the previous page,
• To access options, press
press <
Back
.
Menu
<
Options
>.
> and select
Use Phonebook
Add a contact
To the phone’s memory:
1. In Idle mode, enter a phone
2. Select
3. Specify contact information:
4. Press <
To the SI M c a r d :
1. In Idle mode, enter a phone
2. Select
3. Enter a name.
4. Press <
number and press <
Save contact → Phone
→
a number type.
Last name, First name, Mobile,
Home, Office, Fax, Other, Email,
Caller ID, Ringtone, Group, and
Note.
Save
contact.
number and press <
Save contact → SIM
Save
contact.
Options
> to save the
Options
> to save the
>.
>.
.
Find a contact
Create and
send a name
card
1. In Idle mode, press
Contacts
<
2. Select a contact.
3. Scroll to a number and press
[ ] to dial, or press [] to
edit contact information.
1. In Idle mode, press <
and select
namecard
2. Specify your contact
information.
3. Press <
name card.
4. To send the name card, press
Options
<
via
>.
Phonebook →
.
Save
> to save the
> and select
→
a sending method.
Menu
Send
>
My
Step outside the phone
17
Step outside the phone
Send messages
Send a text
message (SMS)
Send a
multimedia
message
(MMS)
18
1. In Idle mode, press <
and select
message
2. Enter the message text.
3. Press <
Save and send
4. Enter destination numbers.
5. Press [] to send the
message.
1. In Idle mode, press <
and select
message
message
2. Select
3. Enter the message subject and
press [].
Messages → Create
→ Text message
Options
Messages → Create
→ Multimedia
.
Subject
Menu
> and select
or
Send only
Menu
.
>
.
>
4. Select
5. For
6. For
.
7. Select
8. Enter the message text and
9. Press <
10. Enter destination numbers or
11. Press [] to send the
Image and video
Sound
.
Image and video
Add image
add an image or a video clip.
and add a sound clip.
press [].
Send
addresses.
message.
Sound
Message
Options
.
or
Add video
, select
.
> and select
or
, select
and
Add sound
View messages
View a text
message
When a notification appears:
1. Press <
2. Select the message from the
From the Inbox:
1. In Idle mode, press <
2. Select an SMS message ().
View
Inbox.
and select
messages
>.
Inbox
Menu
.
Messages → My
→
>
View a
multimedia
message
When a notification appears:
View
1. Press <
2. Press <
Retrieve
3. Select the message from the
Inbox.
From the Inbox:
1. In Idle mode, press <
and select
messages
2. Select an MMS message ().
>.
Options
> and select
.
Messages → My
→
Inbox
Menu
.
>
Step outside the phone
19
Enter text
Pinyin, PTI, Stroke, Quick English, English, Number, and
Symbol modes
You can enter text for some features, such as
Messages, Phonebook, or Calendar, using Pinyin, PTI,
and Stroke modes for Chinese, and Quick English and
English modes for English. You can also use Number
mode and Symbol mode.
Changing the text input mode
• Press the right soft key and select the text input
mode you want.
Pinyin ()PTI ()
Chinese S Stroke ()Chinese T Stroke ()
Quick English ()English ()
Number ()Symbol (No indicator)
• Press and hold [ ] to quickly switch to Symbol
mode.
20
Using Chinese Pinyin mode
Pinyin is a system to enter Chinese words by spelling
them phonetically (how they sound) using the Latin
alphabet. With the Pinyin input method, you can enter
Chinese characters by entering the Pinyin string using
the phone’s keypad.
Entering characters in Pinyin mode
1. Press the keys corresponding to the phonetic
spelling, referring to the letters printed on the
keys.
Example
enter “ni.”
2. Press [Left] or [Right] to select alternative pinyins
for the keys you have pressed.
3. If you cannot find the character you want from the
display, press [Up] or [Down] to scroll through the
word choices.
4. Press [
A number, from 1 to 5, is added to each character.
: To enter “,” press [6] and [4] to
1
] to activate the character selection field.
5. Press the number key corresponding to the
character you want.
Rapid character entry
To enter the word “zhong guo ()”, enter the first
character using the following keystrokes; [
6
], [6], [1], and [1]. You do not have to complete
[
the Pinyin spelling to include “guo ( ).” The character
displays automatically.
9
], [4],
Tips for using Pinyin mode
• Press [ ] to insert a space between characters.
• Press and hold [ ] to move the cursor down one
line.
• Press [Left] or [Right] to move the cursor.
C]
•Press [
hold [
to clear letters one by one. Press and
C
] to clear the entire display.
Using Phrasal Text Input mode
Phrasal Text Input (PTI) is an advanced Pinyin mode
which predicts not only words, but phrases for your
key presses. Using PTI mode, you can also add new
words or phrases to the PTI dictionary.
Entering characters in PTI mode
Entering characters in PTI mode is basically the same
as in Pinyin mode except that you can enter phrases.
Refer to “Using Chinese Pinyin mode.”
Adding words or phrases to the PTI dictionary
Once you have assigned words or phrases to the PTI
dictionary, the words or phrases will be the first
choices for the corresponding key presses.
1. Press <
2. Enter the word or the phrase you want.
3. Press <
Options
add the word or the phrase you want to the PTI
dictionary.
OK
> and select
> to insert it into your text.
Add new phrases
to
Using Chinese Stroke mode
This mode allows you to enter individual Chinese
strokes, in written order, from top to bottom, and from
left to right.
The Chinese strokes are classified into five basic
categories; heng, shu, pie, dian, and zhe. The basic
strokes are printed on keys [
1
] to [5] on the keypad.
Enter text
21
Enter text
Refer to the following table:
Category Key Strokes represented in each category
If you are uncertain of the stroke order, press [6] in
place of each questionable stroke. Continue entering
strokes until the character displays.
Entering strokes and characters in Stroke
mode
1. Press the keys that correspond to a character’s
component strokes. Press keys in the order that
you would write the strokes, using one press per
stroke.
Example
and [
: To enter “ ,” press [5] to enter “”
3
] to enter “.”
2. Press [Up] or [Down] to scroll through the choices.
22
3. To select a character and add it to your message,
7
press the corresponding key, [
] to [ ].
Rapid character entry
Try entering the characters “” using the following
2
keystrokes: [
], [8], and [7]. Even though “” is a
fifteen stroke character, your phone allows you to
enter the complete pair in only three key presses.
Tips for Stroke mode
• Press [ ] to insert a space between characters.
• Press and hold [ ] to move the cursor down one
line.
• Press [Left] or [Right] to move the cursor.
C]
• Press [
hold [
to clear letters one by one. Press and
C
] to clear the entire display.
Using Quick English mode
T9 is a predictive text input mode that allows you to
key in any character using single keystrokes.
Entering a word in Quick English mode
1. Press [2] to [9] to start entering a word. Press
each key once for each letter.
Example
enter Hello.
T9 predicts the word that you are typing, and it
may change with each key that you press.
2. Enter the whole word before editing or deleting the
characters.
3. When the word displays correctly, go to step 4.
Otherwise, press [
choices for the keys that you have pressed.
For example, Of and Me use [
4. Press
word.
: Press [4], [3], [5], [5], and [6] to
0
] to display alternative word
6
] and [3].
[
]
to insert a space and enter the next
Tips for using Quick English mode
• Press [1] to enter periods or apostrophes
automatically.
[
]
• Press
• Press [ ] to insert a space between characters.
• Press and hold [ ] to move the cursor down one
line.
• Press the Navigation keys to move the cursor.
• Press [
hold [
to change case.
C]
to clear letters one by one. Press and
C
] to clear the entire display.
Adding a new word to Quick English mode
1. Enter the word that you want to add.
0
2. Press [
3. Press <
4. Enter the word you want using English mode and
] to display alternative words for your key
presses. When there are no more alternative
Add
words,
press <
appears on the bottom line.
Add
>.
OK
>.
Enter text
23
Enter text
Using English mode
Press the appropriate key until the character you want
appears on the display.
Key
Tips for using English mode
• To enter the same letter twice or to enter a
different letter on the same key, wait for the cursor
to move to the right automatically or press [Right].
Then, enter the next letter.
24
Characters in order displayed
Upper case
Lower case
• Press [ ] to insert a space between characters.
• Press and hold [ ] to move the cursor down one
line.
[
]
• Press
• Press the Navigation keys to move the cursor.
• Press [
hold [
to change case.
C]
to clear letters one by one. Press and
C
] to clear the entire display.
Using Number mode
Number mode enables you to enter numbers.
Press the keys corresponding to the digits you want.
Using Symbol mode
Symbol mode enables you to insert symbols.
ToPress
display more symbols[Up] or [Down].
select a symbolthe corresponding
number key.
ToPress
C
clear the entered symbols[
insert the symbols<
].
OK
>.
Call functions
Advanced calling features
Making a call
1. In Idle mode, enter the area code and phone
number.
• Press [C] to clear the last digit or press and
[C
] to clear the whole display. You can
hold
move the
• Press and hold [ ] to enter a pause between
numbers.
2. Press [ ].
3. To end the call, press [ ].
Making an international call
1. In Idle mode, press and hold [0]. The + character
appears.
2. Enter the country code, area code, and phone
number, then press [ ].
cursor to edit an incorrect digit.
Call functions
25
Call functions
Redialling recent numbers
1. In Idle mode, press [ ] to display the list of
recent numbers.
2. Scroll to the number you want and press [ ].
Making a call from Phonebook
Once you have stored a number in Phonebook, you
can dial the number by selecting it from Phonebook.
p. 31
You can also use the speed dial feature to assign your
most frequently dialled numbers to specific number
keys.
You can quickly dial a number from the SIM card using
its location number assigned when stored.
1. In Idle mode, enter a location number and press
2. Press [Left] or [Right] to scroll through other
3. Press <
26
p. 33
[].
numbers.
Dial
> or [ ] to dial the number you want.
Answering a call
When you receive a call, the phone rings and displays
the incoming call image.
Accept
Press <
> or [ ] to answer the call.
Tips for answering a call
• When
• When
• Press <
• Press and hold [ / ] to reject a call or mute the
Anykey answer
any key, except for <
Active flip
the phone.
ringer, depending on the
Reject
p. 66
Reject
is active, you can simply open
p. 66
> or [ ] to reject a call.
is active, you can press
> and [ ].p. 66
Volume key
setting.
Viewing missed calls
If you have missed calls, the screen displays how
many calls you have missed.
View
1. Press <
2. If necessary, scroll through the missed calls.
>.
3. Press [ ] to dial the number you want.
Using the headset
Use the headset to make or answer calls without
holding the phone.
Connect the headset to the jack on the left side of the
phone. The button on the headset works as follows:
ToPress
redial the last calland hold the button twice.
answer a callthe button.
end a callthe button.
Options during a call
You can access a number of functions during a call.
Adjusting the volume during a call
Use [ / ] to adjust the earpiece volume during a call.
Press [ ] to increase the volume level and [ ] to
decrease the volume level.
Placing a call on hold/Retrieving
Press <
Hold
> or <
or retrieve the call.
Retrieve
> to place a call on hold
Making a second call
You can make another call if your network supports it.
Hold
1. Press <
2. Make the second call in the normal way.
3. Press <
4. Press <
the call on hold.
5. To end the current call, press [ ].
> to put the call on hold.
Swap
> to switch between the calls.
Options
> and select
End held call
to end
Answering a second call
You can answer a call while already on the phone, if
your network supports it and you have activated the
call waiting feature.
p. 70
Call functions
27
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