Oppo R831 User manual

Contents in this user manual may differ from the actual mobile device, and is subject to software
service providers.
Music becomes simple and easy for your enjoyment with a dedicated music player supporting
multiple audio formats; a 5 megapixel digital camera assists you to capture every memorable
moment of your life; GPRS/EDGE/3G WCDMA and WiFi provide you with fabulous net surfing
experience; any fancied app can be installed to your heart's content with the latest Android
technology, which is of superb compatibility, extensibility and reliability; not to mention
Bluetooth 4.0, perfect audio quality and ultra-large screen, get ready for ceaseless fun and joy!
Please read this user manual carefully before using this device.
Thank you for choosing the fashionable and cool OPPO.
R831 is a touch-controlled mobile device. A tap on the screen allows you to enable corresponding
function, as is intuitive and handy. With a wealth of entertaining apps accessible, a tap will trigger
the magic for marvelous experience.
V1.0
www.oppothai.com

Declaration
No part of this user manual may be reproduced, transmitted, distributed or stored in any form or by
any means without prior written permission of OPPO.
OPPO operates a policy of ongoing development. Thus, OPPO reserves the right to make changes and
modifications to any of the products described in this document without prior notice.
The contents of this document are provided "as is". Except as required by applicable laws, no
warranties of any kind, express or implied, are made in relation to the accuracy, reliability or
contents of this document.
Please make sure backups or written records are made for important contents and data stored in your
device since loss or damage could be caused in use, maintenance, battery replacement or for other
reasons. To the maximum extent permitted by applicable law, under no circumstances shall OPPO or
any of its licensors be liable for any loss of data or income or any special, incidental, consequential
or indirect damages howsoever caused.
The third-party software provided with this device may have been created and may be owned by
persons or entities not affiliated with or related to OPPO. OPPO does not own the copyrights or
intellectual property to the third-party applications. As such, OPPO does not take any responsibility
for end-user support, functionality of the applications, or the information provided in the applications
or associated materials. OPPO does not provide any warranty for the third-party applications.
By using the applications you acknowledge that the applications are provided "as is" with no warranty
of any kind, neither express nor implied, to the maximum extent permitted by applicable law.
You further acknowledge that OPPO makes no representation or warranty, express or implied, including
but not limited to warranties of title, merchantability or fitness for a particular purpose or that the
applications will not infringe any third-party patent, copyright, trademark or other rights.
Product supplies as well as related applications and accessories may vary by region.
Please check with your the dealers appointed by OPPO for details.
This device may contain commodity, technology or software subject to export laws and regulations
from Thailand and other countries. Diversion contrary to law is prohibited.
2

Safety
Please familiarize yourself with the following
concise regulations. Not following these
regulations might be dangerous or illegal.
Further information about safety is provided
in this user manual.
Switch on safely
Do not switch the device on when
phone use is prohibited or when it
may cause interference or danger.
Road safety comes first
Please obey all local laws and
regulations. It's best to drive the
vehicle with both hands. Road safety
shall come first before mobile device
use while driving.
Switch off at gas station
Please do not use the device at gas
station (service station) or places in
close proximity to fuel or chemicals.
Switch off when taking an airplane
Your device may cause interference.
Phone use on airplane is dangerous
and illegal.
Switch off around medical equipment
Hospitals or healthcare organizations
might own equipments which are
sensitive to wireless frequency.
Please obey all regulations or rules.
Interference
All wireless devices might be
susceptible to interference and effected
in performance.
Switch off around blasting areas
Please obey all related rules and
regulations. Do not use this device
around blasting areas.
Appropriate use
Use the device only at appropriate places.
Please do not touch the antenna area
after it is switched on if unnecessary.
Qualified service
The device can only be installed or
maintained by qualified service staff.
3

Accessories and battery
Please use the exclusive accessories
and battery provided by OPPO.
Accessories not provided by OPPO might
cause phone damage and danger.
Water resistance
Your device is not water-resistant.
Please keep it dry.
Connect to another device
When connecting to another device,
please check the instructions of the
device for safety details. Please do not
connect to incompatible products.
Safety
4

About This User Manual
【 】Cautions about safety or device functions.
【 】An option of submenu you should select
to perform a function.
【[ ]】A key on the device. For example:
【Function key】.
【 】Tips about phone use.
Special Functions
This user manual provides concise information
about how to use the device. Please refer to "Use
Introduction" and "Basic functions" for basic
operations of the device.
You will see the following instructional icons in this
user manual:
Camera and video recorder
Use the device as a camera or a
video recorder.
Bluetooth
Use Bluetooth wireless technology
to transmit photos, video records
or other personal data, or to
connect to other devices.
Media player
Use the device to play music and
videos of MP3, MP4 and other
formats.
Introduction
5
WLAN
Access to internet via WIFI will be
easier, better and faster.

Contents
Accessories
Your Device
Use Introduction
Basic steps for phone operation
Install the SIM card and battery
Switch on/off
Device password and unlock
Charge the device
Network modes
Operating system 13
Touch control and keys 14
Landscape mode and backlight 15
Indicators 16
Main menu 17
Main interface 18
Input methods 18
Calling 19
Basic Functions
Phonebook 20
Messaging 21
Settings 21
Clock 23
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Menu index
Calendar
Calculator
FM radio
Multimedia Applications
Music player 25
Video 25
Camera 25
File management 25
PC connections 26
Wireless connections 26
Network 27
Email 27
Browser 27
Others
SIM application 29
Troubleshooting
Health and Safety
Battery security 33
Care and maintenance 38
Fundamental Performance Parameters.41
Help you get to know this device 41
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6

Charger
Battery
You are provided with the following standard
accessories:
Data Cable
Mobile device
Earphone
Accessories
User manual
Note: accessories shown in the above
illustration may vary differ from actual
accessories.
Standard configurations of this device include:
one phone device, one chargeable battery, one
charger, one USB data cable, on earphone, one
user manual and one warranty card.
Additional accessories can be purchased from
local dealers.
Accessories (battery, charger, etc.) can
only be used on matched original OPPO
products. To protect your benefit, please
conduct battery true-false inquiry and
register your product in time.
Warranty maintenance is unavailable when
troubles are caused for using the accessories
on other products.
7

Your device
Keys and parts
Front Back
Front
Camera
Lens
Touch
screen
Earpiece
Menu
key
Earphone connector
Power/
lock key
USB Cable and
charger connector
8
Home key
Back key
Rear camera
lens
Loudspeaker

Menu Index
Calling
Dialpad 20
Call history 20
Contacts 20
Favorites 20
Phonebook
Contacts 20
Favorites 20
Groups 20
Messaging
Saving settings 21
SMS settings...................................................................21
MMS settings.................................................................21
Notification settings....................................................21
Settings
General settings 21
Sound settings 22
Display..............................................................................23
Security.............................................................................23
Life assistant........................................24
clock 24
calendar............................................................................24
calculator..........................................................................24
FM radio...........................................................................24
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Multimedia applications 25
Music player 25
Playlist 25
Setting as ringtone 25
Player settings 25
video 25
Camera 25
File management
creating new folder 25
editing...............................................................................25
Micro SD card extension support...........................25
PC connections
Wireless connections 26
Email....................................................................27
Browser...............................................................27
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9

Use Introduction
Warning: Please switch off the device before
removing the battery.
Warning: To avoid card data loss and damage,
please avoid touching the metal plane area of
the SIM card. Keep the SIM card away from
electricity and magnet.
Service network will be unable to access once
the SIM card is damaged.
The SIM card can be removed from your device
and placed in any other device in support of
corresponding network service, and the device
will automatically reads data on the card.
Basic steps for phone operation
SIM card Information
When subscribing for network access, you will get a
plug-type SIM card, which carries your information,
such as PIN code and available service options.
Install the SIM card
Remove the battery
Switch off the device, open the battery cover from
the finger-clasping slot on its top, and remove the
battery as shown below.
Install SIM card and memory card
SIM card is generally placed in a card holder.
Please take it out carefully before installation.
Place the SIM card and the memory card into
the respective slots as shown below.
All information in relation to network
connection, as well as your call log initialization,
contacts stored in the SIM card phonebook,
communication logs and some SMS messages
are all saved in the metal plane area of the SIM
card.
10

Install the battery
Switch on/off
Use Introduction
Ensure that the battery is aligned appropriately
with the device. Insert the battery and replace the
battery and replace the buttery cover as shown
below.
Switch on
Insert the SIM card, TF card and battery following
the instructions above, press and hold the power
key until it gives a response of vibration.
Once a SIM card is inserted in, the device will check
automatically the availability of the SIM card.
Switch off
First make sure you have properly saved your data.
Press and hold the power key and then select power
off in the pop-up menu, or press and hold the power
key to switched off.
If the device is not used for a long time, please
make sure the battery is removed.
Remove SIM card and memory card
When you need to remove SIM card and memory
card, please switch the device off, open the
battery cover, remove the battery, and then
remove the SIM card.
Warning: You must switch off the device before
removing the SIM card and the memory card.
Do not insert or remove the SIM card or memory
card with external power supply connection,
otherwise it may cause data loss or damage.
11

Device password and unlock
Use Introduction
Standby screen and unlock
In power-on status, press the power key once, the
device would switch off the screen backlight and
enter standby mode to save power; the backlight
would be switched on by pressing the power key
once again. The screen would be locked to prevent
unintended touches, so you need unlock it manually.
If no operation is conducted for a specified time, the
device would enter standby mode and you need
unlock it again for further operations.
Set password
To prevent illegal use, you can set device password
for protection. If this feature is activated, you must
enter the password each time you switch it on to
unlock the device.
In case you have forgotten your device password,
you are supposed to contact your dealer or the local
authorized service center to unblock it.
Unblock SIM card
To prevent illegal use, you may adopt PIN
(personal identification number) code to
protect your SIM card.
When this feature is activated, you must enter
the PIN code each time you switch on the
device to unlock the SIM card and make or
answer a phone call. You may cancel SIM card
protection, in which mode illegal use cannot
be prevented.
Warning: Your SIM card would be blocked by
the network if you enter incorrect passwords
continuously for three times, and the device
would inquire your PUK code.
Do not enter anything if you do not know,
bring the SIM card to your network service
provider for solution, or ten times' incorrect
entering will cause your SIM card become
useless. Your network service provider will set
a standard PIN for your SIM card.
You need to modify it to be your private
password as soon as possible.
12

Use Introduction
Charge the device
Connect the charger with the power supply, or
connect the device to a PC via USB cable, plug the
end of the USB cable into the charger connector of
the device to start charging.
The power icon on the upper-right corner of the
screen will keep scrolling. If your device has been
switched off, the display will show a image
indicating charging status.
The power icon on the upper-right corner of the
screen will keep scrolling. If your device has been
switched off, the display will show a image
indicating charging status. If the device has been
overused under low power, it may take a while for
the charging indicator to appear on the screen.
When the power indicator on the upper-right corner
shows full and stops scrolling, the battery is fully
charged. The screen will show a battery full image
if the device is charged in power-off mode. While
charging, the device may heat up, as is normal.
Warning: Please ensure the battery is properly
placed and use OPPO-approved data cable and
adaptor.
Network modes
For your security, if you need to talk on the
device in process of charging, please disconnect
the charger before you use the device and
continue to charge after you are finished.
When the battery is fully charged, disconnect
the AC power outlet with the device and charger.
Charging time shall not exceed 12 hours.
Please follow the security specifications strictly.
The device supports both 2G GSM and 3G
WCDMA as well as data transmission mode of
GPRS/EDGE/WCDMA/HSDPA, allowing access
to wireless network whenever and wherever
possible.
Operating system
The device employs Android operating system
with superb compatibility, extensibility and
reliability, allowing you to install software,
games and other applications according to
your preference and enjoy cooler experience.
13

14
Use Introduction
Touch control and keys
This device uses the latest capacitive touch screen.
Corresponding operations can be enabled by a tap
on the screen, as is more intuitive and convenient.
Before you start:
1. Please make sure that your hands are clean and
dry.
2. Please use fingertips to press the intended screen
icons or feather-touch keys precisely. There is no
need to press hard.
3. To prevent scratching, please do not use pen,
pencil or other sharp objects to tap or write on
the screen.
Basic touch actions
1. Tap
Use fingertips to touch icons or options on the
screen to enable actions.
2. Tap and hold
If other actions are to be performed on a file or
application, please tap and hold the icon until the
option list pops up.
3. Drag
Use fingers to tap and hold an icon and drag
the icon. Any icon on the desktop can be
moved by holding and dragging.
4. Slide
Slide your finger quickly to scroll the screen.
Dragging your finger to slide will not select or
activate anything on the screen. You can wait
until the scrolling stops or touch any area of
the screen to stop it. Touching the screen to
stop scrolling will not select or activate
anything. In the contact list, you can slide up
or down to scroll the screen and find certain
numbers. While viewing photos, you can slide
left or right to view the previous or next photo.
5. Double-tap
Tap the screen twice quickly. While viewing
photos, you can double-tap the touch screen
to zoom in, and double-tap again to zoom out.
6. Zoom in/out
While viewing photos, web pages, emails or
maps, you can zoom in or out by pinching your
fingers.

Use Introduction
15
Landscape mode and backlight
Portrait and landscape orientation modes
A lot of applications such as browser, SMS editing,
photo viewing are in support of screen in portrait
or landscape orientation to match your using habits
or to make the device more handy and more suitable
for your needs. You much enable the Auto Rotation
mode before using this feature by selecting Settings
Display Auto rotate screen. Rotate the device,
for certain applications the screen layout will also
rotate correspondingly, and adjust automatically to
suit the new screen orientation.
Adjust the backlight
You can use Settings to activate screen brightness
auto adjustment, by which the screen of your device
can adjust its backlight brightness automatically
according to the ambient light. Thus, the device
can provide you with much clearer outdoor viewing
conditions, and reduce its brightness under dark
conditions for less eye irritation as well as lower
power consumption.
Select Settings Display Brightness Automatic
brightness adjustment. Moreover, while you are
using the calling function with the device in close
proximity to your face, your device will lock the
screen and turn off the backlight automatically for
battery power saving.

Indicators WiFi is connected.
USB connection is activated.
WiFi is available but not connected.
You have new emails.
Bluetooth is activated.
Vibration mode is activated.
The sound is muted.
HSDPA is activated.
3G network is connected.
Silent mode is activated.
Use Introduction
Signal strength
You have missed calls.
You have new SMS.
Note: The pictures used in this manual are for
illustration only, and may differ from your
device. These shall be subject to actual display
of the device.
Battery power level.
Clock alarm is activated.
EDGE function is activated.
16

Status
bar
Call
shortcut
Main menu
shortcut
Message
shortcut
Main Interface
Idle screen
Use Introduction
Tap the Menu key in the operating area to
access idle screen. The desktop display include
basic status of the device and shortcuts for
some of the programs.
Basic actions
Tap the status bar at the top of the screen and
drag your finger down to open the notifications
panel.
17
Current input method: to view the currently used
input method.
Input method setting: to set the input methods
through input method setting.
The input method setting menu includes the
following options:
1. English input habit: set operating habits for
English input, including Auto add space and
Auto capitalize initial letter.
2. Vibrate when tapped: set the keypad to
vibrate when tapped.
3. Play touch tone when tapped: set the keypad
to play touch tone when tapped.
Browser
shortcut
Contacts
shortcut

Main menu Input methods
Use Introduction
Tap the central [Shortcut] icon at the bottom of the
screen. The menu contains built-in tools, settings
and all the applications you have installed. You can
slide up or down to view more panels.
18
Qwerty keypad input
Actions can be performed in a similar method
to qwerty input. The keypad interface is as
followed:
Switch input methods
To input or edit a text, you can use OPPO input
method or other input methods installed into
your device. You can tap and hold the text input
field and select "Input methods" in the options
list to view available input methods.
Switch to number/
symbol input keypad
Set input method
Select Settings Language&keyboard Input
methods settings to access corresponding input
method setting interface, which includes the
following options:

Use Introduction
19
You can bring up the main menu by tapping the icon
in the transparent bar at the bottom of screen.
Tap the shortcuts for speedy access of the programs
you need; Tap and hold the selected shortcut icons
to move or delete them.
The desktop has a larger scope than single-panel
screen display for more shortcuts and widgets.
By sliding left or right on the screen you can view
more panels. Location of the current panel is
indicated in the scrollbar at the bottom of the
screen.
Tap the left icon in the transparent bar at the bottom
of the screen, you can access calling function; tap
the right icon in the transparent bar, you can access
messaging function.
Customizing
The desktop allows certain customized settings.
You can open the main screen interface by tapping
the [Main screen key], set wallpapers and add
widgets as well as new shortcuts to the desktop.
You can also add application icons you want to the
desktop by holding and dragging the icons from the
menu page.
Calling
You can access the calling function by tapping
the phone icon at the lower left corner of the
screen in standby mode, or select the dial tab
in the menu. If you have missed calls, the
phone icon in the transparent bar at the bottom
of the screen will show the number of missed
calls.
Call history
Your call logs are recorded in the call history
module, including missed calls, received calls,
dialed calls, etc. You can also view the call
history by tapping the call key in the standby
screen; Tap to enter, then you can view details
of logs as well as perform actions including
calling, deleting and sending messages.
You can enter the number you want to call
directly on the dialpad, the entered number
will match contact history automatically.
You can also add the entered number directly
to existed contacts, or add a new contact to
phone or SIM card.
Dialpad

Basic functions
Contacts
Search for contact: Tap the [Search] icon at the
upper right corner to search for a contact. Select the
contact found and you can view contact detail, call,
or send message.
New contact: Tap the [New] icon at the upper right
corner to add a new contact.
Favorites
Synchronized with phonebook favorites.
Contacts
Managing function is provided for all contacts
stored in the device. You can add new contacts,
search for specified contact, and select the
contact found to call, edit, send message, add
to Favorites, etc.
Favorites
You can add certain contact to Favorites, and
adjust its location in Favorites according to your
preference.
Groups
Provide default groups (Friends, Family, VIPs).
You can save names and numbers to both phone
and SIM card.
In the phonebook settings, you can set display
status (Phone, SIM, Only show contacts with
numbers), export contacts to T card or import
VCard files from T card to contacts list.
Phonebook
20