Congratulations on your purchase of the Sony Ericsson

K850a. Capture and share quality moments. For additional phone content, go to www.sonyericsson.com/fun .

Register now to get a suite of tools, free online storage, special offers, news and competitions at www.sonyericsson.com/myphone .

For product support, go to www.sonyericsson.com/support .

Accessories – More for your phone

Camera Phone Kit IPK-100

Premium protection for your phone.

Bluetooth™ Headset HBH-IV835

Stylish discretion with excellent sound.

Desk Stand CDS-65

Your phone’s best assistant: connect a

USB cable, charger and portable handsfree.

These accessories can be purchased separately but may not be available in every market. To view the full range go to www.sonyericsson.com/accessories .

Contents

Getting started ................... 5

Assembly ........................................ 5

Turning on the phone ..................... 5

Help in your phone ........................ 6

Charging the battery ....................... 7

Phone overview ............................. 8

Menu overview ............................. 10

Navigation .................................... 12

My Stuff ....................................... 13

Phone language ........................... 15

Entering text ................................. 15

Calling ............................... 16

Making and receiving calls ........... 16

Address book .............................. 18

Call list .......................................... 21

Speed dial ..................................... 22

Voicemail ...................................... 22

Voice control ................................ 22

Forwarding calls ........................... 24

More than one call ........................ 25

My numbers .................................. 26

Accept calls ................................. 26

Fixed dialing ................................. 26

Messaging ....................... 27

Text and multimedia messaging ... 28

Voice messages ............................ 30

Mobile Email ................................. 30

Instant Messaging (IM) ................. 30

Imaging ............................ 33

Camera and video recorder ......... 33

Viewfinder and camera keys ........ 33

Using the camera .......................... 34

Getting more from the camera ..... 34

Camera icons and settings ........... 35

Camera shortcuts ......................... 36

Transferring pictures ..................... 36

Camera printing ............................ 37

Pictures ......................................... 37

PhotoDJ™ and VideoDJ™ ........... 38

Themes ......................................... 38

Entertainment .................. 39

Music ............................................ 39

Stereo portable handsfree ............ 40

Music and video players .............. 40

Transfer music from a computer .. 41

FM Radio ..................................... 43

Contents 1

2

Ringtones and melodies ............... 44

MusicDJ™ .................................... 45

Sound recorder ............................. 45

Games .......................................... 45

Applications .................................. 46

Connectivity ...................... 47

Phone name .................................. 47

Using MEdia Net .......................... 47

Bluetooth™ wireless technology . 48

Using the USB cable .................... 50

More features ................... 51

Alarms ........................................... 51

Calendar ....................................... 52

Tasks ............................................ 53

Notes ............................................ 54

Timer, stopwatch and calculator .. 54

Password saver ............................ 55

Profiles .......................................... 56

Time and date ............................... 56

Locks ............................................ 56

Hearing Aid Compatibility 59

HAC Settings ................................ 59

Hearing Aid Compatibility Rating .. 59

Troubleshooting ............... 60

Common questions ...................... 60

Contents

Error messages ............................. 61

Important information ...... 63

FCC Statement ............................. 71

Declaration of Conformity for K850a .

72

Index ................................. 73

Sony Ericsson K850a

UMTS 850/1900/2100 GSM 850/900/1800/1900

This User guide is published by Sony Ericsson

Mobile Communications AB or its local affiliated company, without any warranty. Improvements and changes to this User guide necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Sony Ericsson Mobile

Communications AB at any time and without notice. Such changes will, however, be incorporated into new editions of this User guide.

All rights reserved.

©Sony Ericsson Mobile Communications AB,

2007

Publication number: 1202-4668.x P2B

Please note:

Some of the services in this User guide are not supported by all networks. This also applies to the

GSM International Emergency Numbers 911 and

112 .

Please contact your network operator or service provider if you are in doubt whether you can use a particular service or not.

Please read the Guidelines for safe and efficient use and the Limited warranty chapters before you use your mobile phone.

Your mobile phone has the capability to download, store and forward additional content, e.g. ringtones. The use of such content may be restricted or prohibited by rights of third parties, including but not limited to restriction under applicable copyright laws. You, and not

Sony Ericsson, are entirely responsible for additional content that you download to or forward from your mobile phone. Prior to your use of any additional content, please verify that your intended use is properly licensed or is otherwise authorized.

Sony Ericsson does not guarantee the accuracy, integrity or quality of any additional content or any other third party content. Under no circumstances will Sony Ericsson be liable in any way for your improper use of additional content or other third party content.

Bluetooth™ is a trademark or registered trademark of Bluetooth SIG Inc.

The marble logo, BestPic, MusicDJ, PhotoDJ and

VideoDJ are trademarks or registered trademarks of Sony Ericsson Mobile Communications AB.

Sony and Cyber-shot are trademarks of Sony

Corporation.

Memory Stick Micro™ and M2™ are trademarks of

Sony Corporation.

TrackID™ is powered by Gracenote Mobile

MusicID™. Gracenote and Gracenote Mobile

MusicID are trademarks or registered trademarks of Gracenote, Inc. TrackID is a trademark or a registered trademark of Sony Ericsson Mobile

Communications AB.

Ericsson is a trademark or registered trademark of

Telefonaktiebolaget LM Ericsson.

Adobe Photoshop Album Starter Edition is a trademark or registered trademark of Adobe

Systems Incorporated.

MEdia and SmartChip are trademarks or registered trademarks of ATT Mobility.

Yahoo! Is a trademark or a registered trademark of

Yahoo! Inc.

AOL and AIM are trademarks or registered trademarks of AOL LLC.

AT&T is a registered trademark of AT&T

Corporation.

Microsoft, Windows, PowerPoint, Outlook and

Vista are trademarks or registered trademarks of

Microsoft Corporation in the U.S. and other countries.

MicroSD is a trademark or registered trademark of

SanDisk Corporation.

T9™ Text Input is a trademark or a registered trademark of Tegic Communications. T9™ Text

3

4

Input is licensed under one or more of the following: U.S. Pat. Nos. 5,818,437, 5,953,541,

5,187,480, 5,945,928, and 6,011,554; Canadian

Pat. No. 1,331,057, United Kingdom Pat. No.

2238414B; Hong Kong Standard Pat. No.

HK0940329; Republic of Singapore Pat. No. 51383;

Euro.Pat. No. 0 842 463(96927260.8) DE/DK, FI,

FR, IT, NL, PT, ES, SE, GB; and additional patents are pending worldwide.

Java and all Java based trademarks and logos are trademarks or registered trademarks of Sun

Microsystems, Inc. in the U.S. and other countries.

End-user license agreement for Sun™ Java™

J2ME™.

Restrictions: Software is confidential copyrighted information of Sun and title to all copies is retained by Sun and/or its licensors. Customer shall not modify, decompile, disassemble, decrypt, extract, or otherwise reverse engineer Software. Software may not be leased, assigned, or sublicensed, in whole or in part.

Export Regulations: Software, including technical data, is subject to U.S. export control laws, including the U.S. Export Administration Act and its associated regulations, and may be subject to export or import regulations in other countries.

Customer agrees to comply strictly with all such regulations and acknowledges that it has the responsibility to obtain licenses to export, reexport, or import Software. Software may not be downloaded, or otherwise exported or re-exported

(i) into, or to a national or resident of, Cuba, Iraq,

Iran, North Korea, Libya, Sudan, Syria (as such listing may be revised from time to time) or any country to which the U.S. has embargoed goods; or (ii) to anyone on the U.S. Treasury Department's list of Specially Designated Nations or the U.S.

Commerce Department's Table of Denial Orders.

Restricted Rights: Use, duplication or disclosure by the United States government is subject to the restrictions as set forth in the Rights in Technical

Data and Computer Software Clauses in DFARS

252.227-7013(c) (1) (ii) and FAR 52.227-19(c) (2) as applicable.

Other product and company names mentioned herein may be the trademarks of their respective owners.

Any rights not expressly granted herein are reserved.

All illustrations are for illustration only and may not accurately depict the actual phone.

Instruction symbols

These symbols appear in the User guide.

Note

>

Tip

Warning

A service or function is network- or subscription-dependent.

Contact AT&T for details.

Use a touch option or navigation key to scroll and select. See

Navigation on page 12.

Getting started

Assembly

Before you start using your phone, you need to insert a SmartChip and the battery.

To insert the SmartChip

To insert the battery

1 Remove the battery cover.

2 Slide the SmartChip into its holder with the gold-colored contacts facing down.

1 Insert the battery with the label side down and the connectors facing each other.

2 Close and slide the battery cover into place.

Turning on the phone

To turn on the phone

1 Press and hold down .

Getting started 5

2 Enter your SmartChip PIN, if requested and select OK .

3 Select a language.

If you want to correct a mistake when you enter your PIN, press .

SmartChip

The SmartChip, which you get from

AT&T, contains information about your subscription. Always turn off your phone and detach the charger before you insert or remove the SmartChip.

You can save contacts on the SmartChip before you remove it from your phone.

See To copy names and numbers to the

SmartChip on page 19.

PIN

You may need a PIN (Personal

Identification Number) to activate the services in your phone. Your PIN is supplied by AT&T. Each PIN digit appears as *, unless it starts with emergency number digits, for example, 911 or 112. You can see and call an emergency number without entering a PIN.

If you enter the wrong PIN three times in a row, the SmartChip is blocked. See

SmartChip lock on page 56.

Standby

After you have turned your phone on and entered your PIN, the name of the network operator appears. This view is called standby.

Help in your phone

Help and information are available in your phone. See Navigation on page

12.

To use the setup wizard

1 From standby select Menu > Settings

> the General tab > Setup wizard .

2 Select an option.

To view information about functions

• Scroll to a function and select Info , if available. In some cases, Info appears under Options .

6 Getting started

Charging the battery

The phone battery is partly charged when you buy it.

To charge the battery

2.5 h.

1 Connect the charger to the phone. It takes approximately 2.5 hours to fully charge the battery. Press a key to view the screen.

2 Remove the charger by tilting the plug upwards.

You can use your phone while it is charging. You can charge the battery at any time and for more or less than 2.5 hours. You can interrupt the charging without damaging the battery.

Getting started 7

Phone overview

1 Ear speaker

2 Screen

3 Touch options

4 Activity menu key

5 Send key

6 Navigation key

7 Volume, digital zoom keys

8 C key (Clear)

9 End key

10 Camera switch mode key

11 Camera key

12 Camera on/off key

13 Silent key

14 Connector for charger

1

2

3

4

5

6

7

10

11

12

13

14

8 Getting started

16 On/off key

17 Camera lens cover

18 Flash

15

16

17

Getting started 9

Menu overview

AT&T Music*

Media player

Shop Music

MusicID

XM Radio

Music Videos

The Buzz

Community

Music Apps

MEdia Net*

My Stuff

Camera album

Music

Pictures

Videos

Themes

Web pages

Games

Applications

Other

10 Getting started

Messaging

Write new

Inbox

Mobile Email

IM*

Call voicemail

Outbox

Drafts

Sent messages

Saved messages

Templates

Manage messages

Settings

AT&T Mall

Shop Tones

Shop Games

Shop Graphics

Shop Multimedia

Shop Applications

MEdia Net Home

Address Book

Myself

New contact

Recent

Calls**

All

Answered

Dialed

Missed

Cellular Video

Entertainment

Media player

FM Radio

Games

VideoDJ™

PhotoDJ™

MusicDJ™

Remote control

Record sound

Cyber-shot™ Organizer

Alarms **

Applications

Calendar

Tasks

Notes

Timer

Stopwatch

Light

Calculator

Password Saver

Settings**

General

Profiles

Time & date

Language

Voice control

New events

Shortcuts

Flight mode

Security

Setup wizard

Accessibility

Phone status

Master reset

Sounds & alerts

Ring volume

Ringtone

Silent mode

Increasing ring

Vibrating alert

Message alert

Key sound

Display

Wallpaper

Themes

Screen saver

Clock size

Brightness

Calls

Speed dial

Smart search

Forward calls

Manage calls

Time & cost*

Show/hide my no.

Handsfree

Connectivity*

Bluetooth

USB

Phone name

Network sharing

Mobile networks*

Internet settings

Streaming settings

Message settings*

Accessories

* Some menus are operator-, network- and subscription-dependent.

** You can use the navigation key to scroll between tabs in submenus. For more information, see Navigation on page 12.

Getting started 11

Navigation

The main menus are shown as icons.

Some submenus include tabs.

To navigate the phone menus

To use the touch options

Touch options

1 From standby select Menu .

2 Use the navigation key to move through the menus.

To scroll between the tabs

• Scroll to a tab by pressing the navigation key left or right.

• Select an action shown at the bottom of the screen by pressing the left, center or right touch option.

To view options for an item

• Select Options to, for example, edit.

To return to standby

• Press .

To end a function

• Press .

To delete items

• Press to delete items such as numbers, letters, pictures and sounds.

Shortcuts

You can use keypad shortcuts to go directly to a menu. Menu numbering

12 Getting started

starts from the top left icon and moves across and then down row by row.

To go directly to a main menu

• From standby select Menu and press

– , , or .

To use navigation key shortcuts

• From standby press , , or to go directly to a function.

To edit a navigation key shortcut

1 From standby select Menu > Settings

> the General tab > Shortcuts .

2 Scroll to an option and select Edit .

3 Scroll to a menu option and select

Shortc.

.

Activity menu

The activity menu gives you quick access to certain functions.

To open the activity menu

• Press .

Activity menu tabs

• New events – missed calls and new messages.

• Running apps – applications that are running in the background.

• My shortcuts – add your favorite functions to access them quickly.

• Internet – quick access to MEdia

Net.

My Stuff

You can use My Stuff to handle files saved in the phone memory or on a memory card .

You may have to purchase a memory card separately.

To navigate My Stuff

1 From standby select Menu > My Stuff .

2 Use the navigation key to move up, down, left and right through the menus.

Memory card

Your phone supports Memory Stick

Micro™ (M2™) or MicroSD™ memory card adding more storage space to your phone. It can also be used as a portable memory card with other compatible devices.

Getting started 13

To insert a memory card

• Open the battery cover and insert the memory card with the gold-colored contacts facing up.

To remove a memory card

• Open the battery cover and press the edge of the memory card to release and remove it.

To view memory card options

1 From standby select Menu > My Stuff

> the On memory card tab.

2 Select Options .

Handling files

You can move and copy files between your phone, a computer and a memory card. Files are saved on the memory card first and then in the phone memory. Unrecognized files are saved in the Other folder.

You can create subfolders to move or copy files to. You can select more than one or all the files in a folder at the same time for all folders except

Games and Applications .

If the memory is full, delete some content to create space.

My Stuff tabs

My Stuff is divided into three tabs, and icons indicate where the files are saved.

• All files – all content in the phone memory and on a memory card

• In phone – all content in the phone memory

• On memory card – all content on a memory card

To view information about files

1 From standby select Menu > My Stuff .

2 Find a file and select Options >

Information .

14 Getting started

To move a file in My Stuff

1 From standby select Menu > My Stuff .

2 Find a file and select Options >

Manage file > Move .

3 Select an option.

To select more than one file in a folder

1 From standby select Menu > My Stuff .

2 Scroll to a folder and select Open .

3 Select Options > Mark > Mark several .

4 For each file you want to mark, scroll to the file and select Mark .

To delete a file from My Stuff

1 From standby select Menu > My Stuff .

2 Find the file and press .

Phone language

You can select a language to use in your phone.

To change the phone language

1 From standby select Menu > Settings

> the General tab > Language > Phone language .

2 Select an option.

Entering text

You can use multitap text input or

T9™ Text Input to enter text. The

T9 Text Input method uses a built-in dictionary.

To change text input method

• When you enter text, press and hold down .

To shift between capitals and lowercase letters

• When you enter text, press .

To enter numbers

• When you enter text, press and hold

To enter periods and commas

• When you enter text, press .

To enter text using T9™ Text Input

1 From standby select, for example,

Menu > Messaging > Write new >

Message .

2 If is not displayed, press and hold down to change to T9 Text Input.

3 Press each key only once, even if the letter you want is not the first letter on the key. For example, to write the word “Jane”, press , ,

. Write the whole word before

, looking at the suggestions.

4 Use or to view suggestions.

5 Press to accept a suggestion.

Getting started 15

To enter text using multitap

1 From standby select, for example,

Menu > Messaging > Write new >

Message .

2 If is displayed, press and hold down to change to multitap text input.

3 Press – repeatedly until the desired letter appears.

4 When a word is written, press add a space.

to

To add words to the built-in dictionary

1 When you enter text using T9 Text

Input, select Options > Spell word .

2 Write the word using multitap input and select Insert .

Calling

Making and receiving calls

You need to turn on your phone and be within range of a network.

To make a call

1 From standby enter a phone number

(with international country code and area code, if applicable).

2 Press .

You can call numbers from your contacts and call list. See Address book on page

18, and Call list on page 21. You can also use your voice to make calls. See Voice control on page 22.

To make international calls

1 From standby press and hold down

until a “+” sign appears.

2 Enter the country code, area code

(without the first zero) and phone number.

3 Press .

To re-dial a number

• When Retry?

appears select Yes .

Do not hold your phone to your ear when waiting. When the call connects, your phone gives a loud signal.

16 Calling

To answer a call

• Press .

To reject a call

• Press .

To change the ear speaker volume during a call

• Press the volume key up or down.

1

To mute the microphone during a call

Press and hold down

2 Press and hold down resume.

.

again to

To turn the loudspeaker on during a call

• Select SpkrOn .

Do not hold your phone to your ear when using the loudspeaker. This could damage your hearing.

To view missed calls from standby

• Press Calls or press and scroll to the New events tab and select a number.

• Press to open the call list.

Networks

Your phone switches automatically between GSM and 3G (UMTS) networks depending on availability.

Some network operators allow you to switch networks manually.

To switch networks manually

1 From standby select Menu > Settings

> the Connectivity tab > Mobile networks > GSM/3G networks .

2 Select an option.

Mobile Networks is Smartchip dependent.

Emergency calls

Your phone supports international emergency numbers, for example, 911 and 112. These numbers can normally be used to make emergency calls in any country, with or without the

SmartChip inserted, if a 3G (UMTS) or

GSM network is within range.

In some countries, other emergency numbers may also be promoted. AT&T may therefore have saved additional local emergency numbers on the

SmartChip.

To make an emergency call

• From standby enter 911 or 112 (the international emergency numbers) and press .

To view your local emergency numbers

1 From standby select Menu > Address

Book .

Calling 17

2 Scroll to New contact and select

Options > Special numbers >

Emergency nos.

.

Address book

You can save names, phone numbers and personal information in Address

Book . Information can be saved in the phone memory or on the SmartChip.

Default contact

You can choose which contact information is shown as default. If

Phone contacts is selected as default, your contacts show all the information saved in Address Book . If you select

SmartChip contacts as default, your contacts show names and numbers saved on the SmartChip.

To select default contacts

1 From standby select Menu > Address

Book .

2 Scroll to New contact and select

Options > Advanced > Default contacts .

3 Select an option.

Phone contacts

Phone contacts can contain names, phone numbers and personal information. They are saved in the phone memory.

To add a phone contact

1 From standby select Menu > Address

Book .

2 Scroll to New contact and select Add .

3 Enter the name and select OK .

4 Enter the number and select OK .

5 Select a number option.

6 Scroll between tabs and select the fields to add information.

7 Select Save .

Calling contacts

To call a phone contact

1 From standby select Menu > Address

Book .

2 Scroll to a contact and press .

To go directly to a contact, from standby press and hold down – .

To call a SmartChip contact from the address book

1 From standby select Menu > Address

Book .

2 Scroll to New contact and select

Options > SmartChip contacts .

3 Scroll to a contact and press .

18 Calling