LINKTOP TECHNOLOGY LW273 Users Manual

G USB Modem MANUAL

Content

1 MODEM DEVICE INTRODUCTION.............. 3

1.1 INTRODUCTION...........................................3

1.2 PRECAUTIONS............................................4

1.3 FUNCTIONS.................................................8

2 INSTALLATION PROCEDURE .................... 8

2.1 3G USB MODEM INSTALLATION

1

PROCEDURE FOR WINDOWS 2000 AND

WINDOWS XP...................................................8

2.2 3G USB MODEM INSTALLATION
PROCEDURE FOR WINDOWS VISTA, WINDOWS

7......................................................................12

2.3 3G USB MODEM INSTALLATION

PROCEDURE FOR LINUX (UBUNTU) ...............15

2.4 3G USB MODEM INSTALLATION

PROCEDURE FOR MAC...................................19

3. DETAILED FEATURES DESCRIPTION OF

THE GUI......................................................... 20

4. USER AREA............................................... 22

5. FAQ AND TROUBLESHOOTING.............. 32

2



1 MODEM Device Introduction

1.1 Introduction

Thank you for choosing 3G USB MODEM
device.
To guarantee the device always in its best
condition, please read this manual carefully and
refer to it for general operational information.
The pictures, symbols and contents in this
manual are just for your reference. They might
not be completely identical with your device. We
operate a policy of continuous development and
reserves the right to update and modify the

3

technical specifications in this document at any
time without prior notice.
The MODEM device is a type of multi-mode, 3G
modem or card, applicable to 2G/3G networks.
The interface connects most PCs to the internet,
integrating functions of the MODEM device and
mobile phone, into a mobile communication
device. Via 2G/3G mobile networks, it supports
data services and SMS services, helping you
break away from the limitations of time and zone,
and communicate wirelessly anytime and
anywhere.

1.2 Precautions
To the owner

- When we use the product a safe distance away
from the human body should be greater than or
equal to 0.5cm.

4

- Some electronic devices are susceptible to
electromagnetic interference sent by the
MODEM device if inadequately shielded, such as
electronic systems of vehicles. Please consult
the device manufacturer before using MODEM
device if necessary.

- Operation of your PC and MODEM device may
interfere with medical devices like hearing aids
and pacemakers. Please always keep MODEM
device more than 20 centimeters away from such
medical devices when they are in use. Pull out
the MODEM device if necessary. Consult a
physician or the manufacturer of the medical
device before using MODEM device.

- Be aware of the usage limitation when using a
MODEM device at places such as petrol stations
or chemical factories, where there may be

5

explosive gases or explosive products being
processed. Do not use MODEM device if unsure.

- Store the MODEM device out of the reach of
small children; it may cause injury if used as a
toy.
Device

- Please use original acces sories only or those
that are authorized by the manufacturer. Using
any unauthorized accessories may affect your
device's performance, and violate related
national regulations regarding telecom terminals.

- Avoid using the MODEM device near metallic
structures, devices or establishments that can
emit electromagnet waves. This may adversely
affect signal reception.

- The MODEM device is not waterproof. Please
keep it dry and store in shady and cool place.

6

- Do not use the MODEM device immediately
after sudden temperature change. In such case,
condensation may form inside the device,
potentially causing irreversible damage to it.
Please allow adequate time to dry.

- Treat the MODEM device carefully and avoid
destructive damage. Do not drop, twist, strike or
otherwise harshly treat it.

- Only a qualified maintenance agent should be
permitted to undertake repair work. Please refer
to your operator user guide to find the relevant
contact information.

- Close GUI software before you remove the
device from PC/laptop.
In Aircraft

- Please power off the MODEM device before
take-off. In order to protect in-flight

7

communication systems from interference, do
not use the MODEM device in flight. Use before
take off is subject to the usual aviation laws and
the particular airline’s policy. If in doubt seek
advice from the cabin crew.

1.3 Functions

Functional support includes: Data service,Device
Setting,SMS,Phonebook,etc.

2 Installation Procedure

2.1 3G USB MODEM Installation Procedure
for Windows 2000 and Windows XP

1. Insert SIM card into USB Modem, then insert
USB Modem into computer through USB port,
the computer can find the hardware
automatically and will display CD-ROM window
as below picture.

8

9

10 11

2. If modem not installed automatically ,then go
to My computer and click on 3G Modem ICON，
then modem will install automatically.

3. After finishing installing，it will display the
“GUI” window
Remarks: If you don’t insert the SIM card into
USB modem or insert incorrectly, the “Security”
button, “Network” button, “Message” button and
“Call’ button in “Setting” user interface will be in
grey color (means unavailable) and the left top
side will show “NO (U)SIM”.

4. After finishing installation, the user can
change the APN to suitable for 3G Network.

Please click “Setting” button from “GUI

window”, then click “Profile”, it will display
“profile” window, then you can change, delete or
add APN from here. After modifying, please
select correct APN to Set Default.

2.2 3G USB MODEM Installation Procedure
for Windows Vista, Windows 7

1. Insert SIM card into USB Modem, then insert
USB Modem into computer through USB port,
the computer can find the hardware
automatically and will display “AutoPlay”
window as below picture.

12

13

2. After clicking “Run Setup.exe”，computer will
display the “Warning” windows to confirm to
install software, please click “YES”, then it will
display the “Installation” window.

3. After finishing installing，it will display the
“GUI” window.

Remarks: If you don’t insert the SIM card
into USB modem or insert incorrectly, the
“Security” button, “Network” button,
“Message” button and “Call’ button in
“Setting” user interface will be in grey color
(means unavailable) and the left top side will
show “NO (U)SIM”.

4. After finishing installation, the user can

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change the APN to suitable for 3G Network.

Please click “Setting” button from “GUI
window”, then click “Profile”, it will display
“profile” window, then you can change, delete or
add APN from here. After modifying, please
select correct APN to Set Default.

2.3 3G USB MODEM Installation Procedure
for Linux (Ubuntu)

15

The software is application software for Linux

16

and it is a manager for the mobile device. It will
allow you to establish a connection to the
Internet using 2G/3G cards, and it will also allow
sending and receiving short messages from your
computer.
In order to use your 2G/3G device, you should
run a fairly recent version of the Linux kernel.
The application has been tested on Linux 2.6.20
and newer. If you have an older version installed,
we would recommend updating it before going
on.

The software currently runs under ubuntu

10.04. And we can’t guarantee for other Linux
version.

1. Installation:
Make sure you have root privilege.
Double click setup file(such as ‘3G Modem

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_install’) ,then input root password to install the
software;

2. Uninstallation:
Make sure you are in root privilege.
Open Applications->Internet->3G Modem
uninstall, then input root password to uninstall
the software.

Installation guide:

1. Double click the setup file(such as ‘3G Modem
_install’).

2. Input root password, it will install all packages.

3. When install finished, you can open the
software from desktop menu
“Applications->Internet-> 3G Modem”

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2.4 3G USB MODEM Installation Procedure
for Mac

The below guide is based on MAC OS
version 10.6. Please see the next steps.

1. Insert modem to any USB port. After a

minute, you can see one icon (Such as 3G
Modem) on desktop.
Double click this icon，the window as below

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2. Double click Mac file，then double click Mac

installation files.

3. Click “Continue –Continue-Install”，it will
install automatically . Af ter finishing installing，the
window will display success.

3. Detailed Features Description of the GUI

1. Signal: This icon shows the strength of the

signal.

2. Connect: When you click this icon, you can

see a “connect” button and connect status.
Click “Connect” button to access the
internet.

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3. SMS: You can read SMS, reply SMS or write

new SMS when you click this icon.

4. Phone Book: When you click this icon, you

can look up your address book, add new
contacts, etc.

5. Call: You can make a call and see call

history when you click this icon.

6. Settings: You can modify network setting,

connection setting, message setting, call
setting, security setting, alert setting.

7. USSD: You can input USSD number to send,

Interface will display the returned
information from network. And you can add
USSD number.

8. Brower: When you click this icon, you can

browse some webs, such as Google, Yahoo
mail, Clear trip, etc.

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9. Help: When you click this icon, you can look

the help file.

4. User Area

Show conditional interactive computer
information.

4.1 Connect

You can browse web pages after you have
accessed to the Internet through the device.

1. Connect to the Internet
Click the “Connect” button to connect to internet.
When connected, it will show status as
"Connected", and it will show data flow,
connected time, etc.

During the course of connection, the "Connect"

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button becomes "Disconnect" button and you
can cancel the connection. Then you can access
Internet and receive email etc.

2. Disconnect from the Internet

Click“Disconnect” button to disconnect from the
internet. After disconnection, the box below can
display one record.

4.2 Settings
Click the "Settings" icon to switch to the settings
interface. It includes: Profile Settings, Security
Settings, Network Settings, etc.

1. Profile
To ensure the device connects to the Internet

correctly, please configure user's network
information first. You can save different
operator's network configurations in different

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files.

Button Description:
Add: Add new configuration files.

Delete: Delete the selected configuration files.
Edit: Edit the selected configuration files.
Save: Save the configuration files.
Set default: Select one file from filename list,

and set it as the current file.
Configuration File

The user configuration information includes:
Config filename,
Dial Number, User name, Password, APN. If the
network supports "Obtain server address
automatically", the device can obtain the
assigned IP information automatically (this is
usually the case). If the network does not
support this, you should fill the proper address
manually. The user configuration information

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may differ with the network supplier and network
types. Please refer to the operator user guide for
further information.

2. Security
Enable the PIN

When the "PIN enable" item is selected, you will
be asked to enter your PIN code to use the
device. You can click "Change PIN" to modify
the number.

Note: This function requires network support.

3. Network
Automatic: The system selects the network

automatically according to user configuration
rules and network status.
Manual: User selects network settings.
Select network "Manual", click "OK". After a
short while, the network operator list appears.
Select the network you wish to connect to. Then

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Click "Select", to finish network settings.
Select Mode "Automatic" / "GSM/GPRS/EDGE"
/ "UMTS/HSDPA", click "OK", the system will
indicate when completed successfully.

4.3 SMS

1. Read SMS

Click the "Inbox" button to read the SMS saved
in the Inbox. Make use of the bottom menu
buttons to read, reply,
forward, copy，move, delete or save numbers

2. Create New Message
Click "New SMS" button to input the recipient's

number and content. Input the recipient's
number directly or select one/more records
from the Phonebook (The recipient's number(s)
can be one or more, using ";" to separate). The

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single SMS text can’t exceed 160 English
characters (including English symbols).
Click "Send", to send the short message. During
send the message, you can click”cancel” to stop
send.
After sending successfully, this SMS will be
saved into sent box automatically. If sending fails,
the short message will be saved into outbox;
click "Cancel" to return to "Short Message",
click Save to return to Draft box and the
message will be saved on PC.

Send SMS while browsing the web:
You can send short messages when surfing on

the Internet. Enter the short message interface
and send short messages in normal way.

3. The SMS Box Operating Guide
Enter any of Inbox/Outbox/Sentbox/Draftbox

functions to execute the following:

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Read: Read short message. (The content of
short messages, sender's phone number,
sending time and date).
Reply: Reply to the sender of the short
messages.
Forward: Forward short message to other
recipients.
Move: Move the saving location of short
messages between PC 、USIM or Data card.
Copy: Copy the saving location of short
messages between PC 、USIM or Data card.

Delete: Delete short messages selected.
Save: Save the sender's number into the

phonebook.
Make use of "Ctrl" or "Shift" key and left click to
choose several messages and execute a
function simultaneously.
The system indicates when USIM/ card is full.
When the USIM is full， a new message can only
be received and saved

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if the user deletes short messages in the USIM
card inbox.
Select: use Shift key can realize continuous
selection, use Command key realize random
selection.

4.4 Phonebook

Click the "Phonebook" icon to switch to the
phonebook interface. Phonebook information
can be saved in the PC、USIM or Data card
All contacts are managed using the standard
application. Make use of the bottom menu
buttons to edit ,copy，move, delete or send sms
or call
Phonebook in MAC:

“Address Book" of the user's MAC Book.
Contact of the (U)SIM and the Data card are
managed as a group.

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In order to create or modify the contact the user
must use "Address Book" application.

In order to access to the updated contact list
from Data card and (U)SIM, the user should
synchronize the communication manager using
"Sync to Address Book".

The contacts in Data card and (U)SIM will be
synchronized into the group "Data card Contact"
and "(U)SIM Contact" of "Address Book"
application respectively. In order to synchronize
the contacts from "Address Book "application to
the Data card and (U)SIM, the user should click
button "Sync From Address Book".
The contacts in the group "Data card Contact"
and "(U)SIM Contact" of "Address Book"
application will be synchronized to the memory
of Data card and (U)SIM.

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To copy one contact:

1. Select a contact in "Address Book", choose

Edit > Copy, and then choose Edit > Paste.

2. Drag a contact from the Name column into a

group or folder in the Group column.

To move one contact:

1. Select a contact in "Address Book", using

shortcut key "command + x", and then
choose Edit > Paste or using shortcut key
"command + x".

2. Copy the contact first, and then delete it

after pasted.
Please refer to the Help document of "Address
Book" to get more information.

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5. FAQ and Troubleshooting

If you meet problems in service, please refer to
the following answers for guidance. If the
problems persist, please contact your supplier
via the contact detail in your operator user guide.

Problem

Description

What are the
minimum
requirements
needed to run the
software?

No CD in the Box,
How do I install
the Software?

What computer is
the 3G USB
Modem
compatible with?

The minimum Requirements are Windows 2000,
Windows XP, Window 7, Window Vista and MAC
OS.PIV, WITH 100 MB Free Hard Disk space or
above and 128 MB RAM or Above. CPU Pentium
III or Above.

The software installation process for the modem is
automated; simply connect the Modem to an
available USB port on your computer and then wait
for a moment for the installation to begin

The 3G USB Modem supports main prevailing
types of laptops or portable computer, such as HP,
IBM, Toshiba, Lenovo, Dell, Sony, etc.

Problem Solving

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After plugging in
the Modem to
Vista it warns that
an unidentified
program access?

Why the
installation
program does not
run
automatically?

After full
installation, the
system doesn't
install the driver
properly?
After plugging in,
why the UI
program doesn't
launch
automatically?

Windows Vista contains Enhanced Security
Features, which warn you when any application
attempts to install. Please Select Allow to begin
the Software installation.

The system configuration is not suitable for the
auto-run, If the system does not launch installation
automatically, you can run the installation program
in path of My Computer > 3G Modem. If you
have installed the other version of installation
program please uninstall it firstly.

Please install the driver program manually. The
driver program can be found in the installation
address.

If the system configuration is not proper, this
maybe happen. Please open the UI program
manually. You can find it in the Windows Quick
start menu or the shortcut on the desktop.

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When the Modem
is being installed,
the computer
cannot find it?

What should we
do if the modem
can not connect
to internet when
roaming?

May be the installation programs of the 3G USB
Modem haven't been installed properly, run the
installation program first, and then connect the
modem. If you use the Win XP operating system,
install the drivers according to the Windows
indication information to operate.
The modem isn't connected properly, connect the
same properly.
Even though If system is not detecting the driver
than uninstall the driver and again install.

Check whether the roaming service of USIM card
is enabled. If not, contact with network service
provider.
Contact with distributor to check the APN settings.
Check whether Modem is locked to particular
network.

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Modem is not
getting detected
due to firewall
security or when
opening the
connection, a
Firewall Security
Alert appears,
what should we
do?

With the modem
connected, how
can I start
browsing web
sites?

The modem
reports that its
connecting at 7.2
Mbps is this true
speed?

In order for the 3G USB Modem software to work
correctly, it must be allowed to connect through
your firewall. Select the appropriate option for
example Allow, unblock or Permit. If you require
further information on how to configure your
firewall to allow this application please contact the
vendor of your firewall software.

Once the Software reports that it is connected, you
can Open the web browser and enter desired web
address to start browsing. The Default Internet
Browser on a PC is Internet Explorer; this is
normally located on your Start menu and can be
identified by a Blue "e" icon.

This message displays the Maximum connection
speed of the device and not the actual Connection
speed. A number of different factors, including
signal Strength, 3G or HSDPA Signal, and current
network traffic can affect the actual speed you are
receiving. To confirm your actual speed try
searching the Internet for a broadband speed test.

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While connecting
display shows
Dial up failed /
PPP Link was
terminated what
all are reasons?

You are in the place where no
GSM/GPRS/EDGE/WCDMA/HSDPA network
covered, such as underground parking lot, tunnel
etc. Solution: Change to the place where having
good signal.
The network at this time in this place is busy now,
Try later.
Check the APN in the Settings, whether correct or
not as per inserted SIM Card.
The network type selected using manual search is
wrong or right as per the SIM plan.

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Connected to
Internet, but
cannot open any
web page?

After connection, there is no data transfer, which
resulted that you cannot open web pages.
Signal strength is not sufficient to open the web
page.
May be sufficient amount is not available in the
SIM cards if it is Prepaid, Check the balance
amount.
May be server problem at that point of time.
The IE browser has got problems, upgrade to the
new version or reinstall the IE browser.
The operating system is infected by virus. (Such
as Worm. Blaster which can take up a quantity of
upload data flow and result that it can't receive
downloaded data flow so that you cannot open any
website) to address the same, Use the
professional anti-virus software to check and kill
the virus in the operating system completely.

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You are in the place where no
GSM/GPRS/EDGE/WCDMA/HSDPA network

covered, such as underground parking lot, tunnel
Even after
restarting
computer, there
no signal all the
time what are all
reasons?

Can I send SMS
messages using
the 3G USB
Modem?

Can I make or
receive call
through the 3G
USB Modem?

etc. Solution: Use Swivel option to place the

modem in upright position. Change to the place

where having good signal

The modem isn't connected well, Pull out and

insert the modem safely again.

The SIM/USIM card isn't inserted well, such as

inserted in reverse.

The position of the 3G Modem inner antenna is

unfitting / loose contacts.

Yes

YES with help of Headsets.

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Check slot of the Micro-SD card, Whether it is
My MICRO-SD

card can’t be read
or not found?

inserted as per the prescribed direction or not, if

yes check it is inserted properly or not , check

capacity of the Micro-SD Card maximum

supported capacity is 8GB, if all are ok than may

be a problem with SD Card.

6. Customer information

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.
Any Changes or modifications not expressly

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approved by the party responsible for
compliance could void the user's authority to
operate the equipment.
RF Exposure Information (SAR)
This modem meets the government’s
requirements for exposure to radio waves.
This modem is designed and manufactured not
to exceed the emission limits for exposure to
radio frequency (RF) energy set by the Federal
Communications Commission of the U.S.
Government.
The exposure standard for wireless modems

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employs a unit of measurement known as the
Specific Absorption Rate, or SAR. The SAR
limit set by the FCC is 1.6W/kg. *Tests for SAR
are conducted using standard operating
positions accepted by the FCC with the phone
transmitting at its highest certified power level in
all tested frequency bands. Although the SAR
is determined at the highest certified power level,
the actual SAR level of the phone while
operating can be well below the maximum value.
This is because the phone is designed to
operate at multiple power levels so as to use

41

only the poser required to reach the network. In
general, the closer you are to a wireless base
station antenna, the lower the power output.
The highest SAR value for the modem as
reported to the FCC when tested for use at the
body, as described in this user guide, is

0.976W/kg (Body-worn measurements differ
among phone models, depending upon available
enhancements and FCC requirements.)
While there may be differences between the
SAR levels of various phones and at various
positions, they all meet the government

42

requirement.
The FCC has granted an Equipment
Authorization for this modem with all reported
SAR levels evaluated as in compliance with the
FCC RF exposure guidelines. SAR information
on this modem is on file with the FCC and can be
found under the Display Grant section of
http://www.fcc.gov/oet/fccid after searching on
FCC ID: VH4LW273.
For body worn operation, this modem has been
tested and meets the FCC RF exposure
guidelines for use with an accessory that

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contains no metal and the positions the handset
a minimum of 0.5 cm from the body. Use of
other enhancements may not ensure
compliance with FCC RF exposure guidelines.
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

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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.

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—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.

:This equipment complies with FCC
radiation exposure limits set forth for an

46

uncontrolled environment .This
equipment should be installed and
operated with minimum distance 20cm
between the radiator& your body.

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