D2 D2-721 User manual

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Preface ..................................................................................................................................2
Copyright..........................................................................................................................2
Control Information .........................................................................................................2
FCC Statement.................................................................................................................. 2
Recycling Information ......................................................................................................4
Prevent Hearing Impairment............................................................................................4
Precautions............................................................................................................................4
Chapter One: Overview ......................................................................................................... 5
1.1 Product Overview.......................................................................................................5
1.2 Power On and Off.......................................................................................................6
1.3 Enter and Exit Standby Mode.....................................................................................6
1.4 Home Screen .............................................................................................................. 6
1.5 Lock and Unlock Screen..............................................................................................7
1.6 Status Bar ...................................................................................................................7
1.7 Text Input ................................................................................................................... 8
1.8 Reset ..........................................................................................................................8
1.9 USB Connection (Connect between Tablet & Computer)...........................................9
1.10 Accessories...............................................................................................................9
Chapter Two: Internet ......................................................................................................... 10
2.1 Wi-Fi and Network ...................................................................................................10
2.2 Browser .................................................................................................................... 11
Chapter Three: Applications ................................................................................................ 12
3.1 Camera ..................................................................................................................... 12
3.2 Gallery ......................................................................................................................13
3.3 Video ........................................................................................................................ 14
3.4 Music........................................................................................................................ 14
3.5 Calendar ...................................................................................................................15
3.6 Explorer (File Manager)............................................................................................15
3.7 E-mail .......................................................................................................................16
3.8 Downloads ...............................................................................................................18
3.9 Clock......................................................................................................................... 18
Content

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Chapter Four: System Settings............................................................................................. 18
4.1 Internet Settings.......................................................................................................19
4.2 Sound Settings..........................................................................................................19
4.3 Display Settings ........................................................................................................ 19
4.4 Apps Settings............................................................................................................ 20
4.5 Date & Time Settings................................................................................................20
4.6 Language and Input Settings ....................................................................................20
1 Year Limited Hardware Warranty .....................................................................................20
Preface
Copyright
All rights reserved. This manual is protected by copyright and distributed under licenses restricting its
use, replication and distribution. No part of this manual may be reproduced in any form without the
prior written consent from D2. The product described in this manual may include copyrighted software
of D2 (or other third parties). D2 (or other third parties) preserves the exclusive rights for copyrighted
software, such as the right to distribute or reproduce the copyrighted software. Accordingly, and to the
extent allowed by applicable law, any copyrighted software contained in the product described herein
shall not be distributed, modified, reverse engineered, or reproduced in any manner without the prior
written consent of D2 (or of other third parties).
All other product names, trademarks or logos mentioned herein are used for identification purposes
only, and may be the trademarks or registered trademarks of their respective owners.
Control Information
This device is in accordance with the requirements in Radio & Telecommunications Terminal Equipment
Directive 1995/5/EC.
This device complies with the requirements in EMC Electromagnetic Compatibility Directive
2004/108/EC and Low Voltage Directive 2006/95/EC.
FCC Statement
FCC RF Exposure Information and Statement

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The SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue. Device types D2 PAD has also
been tested against this SAR limit. The highest SAR value reported under this standard during product
certification for use at when properly worn on the body is 0.365W/kg. This device was tested for typical
body-worn operations with the back of the handset kept 0cm from the body. To maintain compliance
with FCC RF exposure requirements, use accessories that maintain a 1.5cm separation distance between
the user's body and the back of the handset. The use of belt clips, holsters and similar accessories
should not contain metallic components in its assembly. The use of accessories that do not satisfy these
requirements may not comply with FCC RF exposure requirements, and should be avoided.
FCC WARNING
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired
operation.
NOTE 1:
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
NOTE 2:
The manufacturer is not responsible for any radio or TV interference caused by unauthorized
modifications to this equipment. Such modifications could void the user’s authority to operate the
equipment.

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Recycling Information
D2 values the importance of our environmental policy, and strongly believes in the protection of our
Earth by properly disposing and recycling industrial technological instruments that have exceeded
service life.
These devices contain recyclable materials, which can be re-incorporated to new material after
decomposition. In contrast, other materials are classified as dangerous and toxic substances. We highly
recommend all users contact the relevant institutions based on the information we provide to recycle
this product.
Prevent Hearing Impairment
Caution: Permanent hearing loss may occur if earphones or headphones are used at high volume for
prolonged periods of time.
This device has been tested to comply with the Sound Pressure Level requirement laid down in the
applicable EN 50332-1 and/or EN 50332-2 standards.
Precautions
This manual contains important information regarding safety measures and proper use of the product.
To avoid accident, please be sure to read the manual carefully prior to use the product.
Keep the product away from high temperature, moisture or dust.
Do not expose the product to high temperature, especially in a window-closed vehicle during summer.
Avoid drop or strong collision of the product or heavy vibration of the TFT screen, as it may cause
damage or abnormal display of the TFT screen.
Please choose appropriate volume. It is not recommended to use earphones in high volume. If ringing
occurs in the ear, please lower the volume or stop using the device.
Please charge under the following circumstances:
A. The system automatically shuts down, and immediately shuts down again after restart.
B. The operating button does not respond.
Note: This product cannot be used with any unauthorized charger; otherwise it may burn the product,
which is not covered by warranty. For any additional original charger, please contact customer service.
The polymer battery cells in the battery pack are not user serviceable.

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When battery level is low, be sure to connect the power plug before formatting the D2 Pad or
uploading/downloading applications to prevent system error.
D2 shall not be held liable for any loss of data caused by damage or repair of the product or any other
reason. Please operate the product properly following the user manual’s guidelines.
Do not disassemble the product. Do not use alcohol, thinner or benzene to clean the surface of the
product.
Do not operate device where the use of electronic equipment is prohibited, such as on airplanes.
To avoid any accidents, please do not use the product when driving or walking on the street.
USB connection is for data transfer only.
**Important Notice: As the product may undergo modifications and improvements, product
specifications and design are subject to change without prior notice.
NOTE: Pictures in this manual are for reference only.
Chapter One: Overview
1.1 Product Overview

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1.2 Power On and Off
Power on
Press and hold the power button (see Product Overview image) for 2-3 seconds, and the system will
begin to boot. While the unit is off and charging, press the power button to see charging notification.
Power off
While the unit is on, press and hold the power button until a dialogue window appears to confirm
power off. Press “OK” to continue.
1.3 Enter and Exit Standby Mode
Enter standby mode
To save power while the unit is on but inactive, tap the power button to enter standby mode.
Exit standby mode
While the unit is in standby mode, tap the power button to resume activity.
1.4 Home Screen

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• Add application shortcuts: Press and hold an application icon from the app list and drag the icon to
the home screen to add as shortcut.
• Remove application shortcuts: Press and hold an application icon in the home screen as the top of the
screen displays an “X”. Drag the application icon towards the “X” until it turns red, and then release the
hold to remove the application shortcut.
1.5 Lock and Unlock Screen
Lock
You may set an idle timeframe after which the unit automatically enters standby. The system will sleep
and the screen will lock if it is inactive for the set amount of time.
Unlock
Move the icon to unlock the unit, as shown below.
1.6 Status Bar
The status bar is located at the bottom the screen.

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The icons on the left side are:
• Back : Tap to return to previous screen.
• Home : Tap to return to home screen.
• History : Tap to view the most-recently accessed applications.
• Screen Capture : Tap to screen capture the current screen content.
• Volume -/+ : Tap to adjust volume.
The icons on the right side of status bar display Wi-Fi signal, Wi-Fi connection status, battery
power/battery charging status, current time, USB and SD card connection status. Tap the icons to view
the date, and time and other information.
1.7 Text Input
When using the tablet, you may use its virtual keyboard to enter text, numbers and symbols directly by
touching the screen. After tapping into a text input area, the default keyboard will appear as shown
below:
To alternate between numbers and letters, press
To alternate between uppercase and lowercase letter, press
1.8 Reset
Pin and hold the reset button on the side of the device for 10 seconds to restart and reset the system.

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1.9 USB Connection (Connect between Tablet & Computer)
When connecting the tablet to your PC via the in-box USB cable, this icon will appear on the
bottom right tool bar. Click on it, and then click Turn on USB storage to connect your devices. The
device of your tablet should then appear on your PC under My Computer as “D2-721”.
Turn off USB storage to disconnect your tablet from the PC. Otherwise, you might be able to operate
some of the apps properly on your tablet.
1.10 Accessories
Item
Function
Adapter, 5V / 2A
Provides power to the tablet by charging the battery
Micro USB Cable
Connects tablet to other USB-supported devices
User Manual
Assists the user in operation of the tablet