T4 
(Lite Edition) 
T4 (Lite Edition)  |1 
 
 
Copyright 
 
All mobile  products  by GIGA-BYTE  COMMUNICATIONS  INC. mentioned  in  this  document, 
including  the  device,  accessories,  software,  text,  music,  and  pictures,  are  owned  by,  or 
authorized by original manufacturers to GIGA-BYTE COMMUNICATIONS INC. Reproduction, 
transfer,  distribution,  or  storage  of  part  or  all  of  the  contents  in  this  document  in  any  form 
without the prior written permission of GIGA-BYTE COMMUNICATIONS INC. is prohibited. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
GIGA-BYTE COMMUNICATIONS INC. 
 
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General Information 
This section contains important information on safe and efficient operation. Please read this 
information before using the device. Ignorance of the following notices may lead to violations 
of the law. 
 
  Before using the device, please make sure you have fully charged the battery. 
  Do NOT remove the battery from the device during charging. 
  Before inserting SIM card into the device, make sure that the device is switched off. 
  Do  NOT  attempt  to  dissemble  the  device  on  your  own.  This  should  be  done  by  an 
authorized person. 
  Use the device in accordance to instructions when in public facilities. 
 
In some countries, it is a violation against the law to record phone conversations. Always 
ask permission of the other party when you are going to record a conversation. 
  To protect your ears, turn down the volume before you use stereo headsets or other audio 
devices. 
  To avoid damaging the touch screen and the device, do NOT apply excessive pressure on 
them,  and  remove  the  device  from  your  pants’  pocket  before  you  sit  down.  It  is  also 
recommended that you only use the stylus or your finger to interact with the touch screen. 
It is not covered by the warranty that you crack the touch screen because of the improper 
usage. 
  When you use the device for a long time, such as talking on the phone, browsing online, or 
charging  the  battery,  the  device  may  become  warm.  In  most  cases,  this  condition  is 
normal. 
  Refer servicing to the provider, or an authorized technician under the following conditions: 
1. The device has been damaged. 2. When you follow the instructions to use your device, 
it does not operate normally. 3. The device has been exposed to water. 4. Liquid has been 
spilled or an object has fallen onto the device.   
  Do NOT push unauthorized objects into slots and openings in your device.   
  The  device  should  be  placed  away  from  heat  sources  such  as  stoves,  radiators,  heat 
registers, or other products that produce heat. 
  Condensation may form on or within your device, when you move your device between 
environments with very different temperature and/or humidity ranges. To avoid damaging 
your device, make the moisture to evaporate before you use the device. 
  To  avoid  damaging  your  device,  do  Not  put  your  device  on  an  unstable  table,  stand, 
bracket, or other places.   
  Before you clean your device, unplug it, please. Use a damp cloth for cleaning, but do not 
use water, liquid cleaners, or aerosol cleaners to clean the touch screen. 
 
 
 
 
 
 
 
 
 
 
   
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Table of Contents 
Copyright 
General Information 
1. Getting Started 
1.1 Your Phone 
1.2 Installing or uninstalling the SIM Card, Battery, and Memory Card 
1.3 Charging the Battery 
1.4 Turning the Phone On or Off 
1.5 Lock/Unlock 
1.6 Contacts 
1.7 The Home Screen 
2. Phone Functions & Messages 
2.1 Voice Calls 
2.2 Creating and sending a text message 
2.3 Multimedia Message 
3. Wi-Fi & Bluetooth 
3.1 Wi-Fi 
3.2 Bluetooth 
4. Multimedia Applications 
4.1 Camera 
4.2 Music 
5. Pre-Installed Programs Introduction 
6. Managing Your Phone 
6.1 Protecting Your Phone 
6.2 Backup or Reset Your Phone 
7. Specifications 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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1. Getting Stared 
 
1.1 Your Phone 
This section introduces you to the hardware of the device. 
 
 
 
 
 
No 
1 
2 
3 
4 
5 
6 
7 
8 
items 
Earphone Jack 
Receiver 
Front Camera 
Volume 
Power 
Touch Screen 
Menu 
Home 
No 
9 
10 
11 
12 
13 
14 
15 
 
 
Items 
Return 
MIC 
5MP Camera 
Flash LED 
Micro-USB Port 
Battery Cover 
Speaker 
 
1.2 Installing or uninstalling the SIM Card, Battery, and Memory Card 
 
SIM card 
The SIM card contains your phone number, memory storage, and details of network service. 
 
To install the SIM card 
There are two slots for SIM cards. Left slot is for SIM1 (WCDMA+GSM) and right slot is for 
SIM2 (GSM).The gold contacts are facing down. And the cut-off corner is facing toward the 
outside. 
 
 
To install the SIM1 card 
 
To install the SIM2 card 
 
 
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To remove the SIM card 
(1)  First, remove the battery. 
(2)  Use your finger to slide the SIM card out of card slot. 
 
Battery 
Your phone comes with a rechargeable battery. Battery life varies depending on the network, 
used applications, and the type of connections attached to your phone. 
 
To install the battery 
Make sure the contact of the battery is close to connectors in the battery slot. 
 
 
To remove the battery 
Use your fingertip to lift the battery, and then remove it. 
 
To replace the back cover 
(1)  Insert the back cover into the slot from the bottom. 
(2)  Then, press all around back cover fully until hearing clicks. 
 
 
Memory card 
You may need a microSD card to store photos, music, videos and other data.   
 
To install the memory card 
(1)  Insert the memory card with the gold contact facing down. 
(2)  Push the memory card until it clicks into slot. 
 
 
To remove the memory card 
(1)  For safe removal, tap Applications tab > Settings > Storage > Unmount SD card > OK. 
(2)  Push the memory card to eject it from the slot. 
 
 
1.3 Charging the Battery 
When you take your phone out of box for the first time, the battery isn’t at full power. Please 
charge the battery fully before using.   
(1)  Connect the USB cable to the AC adapter, and then, connect to the device via the USB 
cable. 
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(2)  Plug the AC adapter to a socket to start the charge. 
(3)  For phone’s safety, please only use the original charger that comes with your device. Any 
possible damage caused by using non-original charger or any other equipment will not be 
under GIGABYTE Communication Inc.’s responsibility.   
 
 
NOTE: 
To ensure safety, do not remove the battery from the phone while the AC adapter is 
connected or while it is being charged. 
 
 
1.4 Turning the Phone on or off 
 
To turn on your phone 
Press and hold the power button until the phone shortly vibrates. 
 
To turn off your phone 
(1)  Press and hold the power button for several seconds. 
(2)  A pop-up window appears, then tap “Power off”. 
(3)  Select “OK” to confirm. 
 
To set your phone to the sleep mode 
To set your phone to the sleep mode, press the power button briefly. It will turn the display off. 
To turn the display on, press the power button briefly again. 
 
 
1.5 Lock/Unlock 
 
Unlock the device 
Drag lock icon on screen and slide to unlock icon for unlocking the device.   
 
. 
 
Lock the device 
(1)  Tap Applications tab > 
(2)  Tap “Activate” to set up the LockScreen function while you are using it first time   
(3)  Then tap 
, the screen will be locked.. 
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1.6 Contacts 
“Contacts” is your phonebook that you can store friends’ names, phone numbers, e-mail 
addresses and other information.”Contacts” can connect to your Google, corporate accounts, 
and integrate your contact information. 
 
Adding a Contact 
(1)  Tap Applications tab > 
(2)  Tap 
(3)  Choose where you want to synchronize the new contact with Google account, Phone, 
  to add a new contact. 
  > tap 
. 
SIM1 or SIM2.   
(4)  A new contact screen appears. 
(5)  Tap each field to fill out the contact information. 
(6)  Tap ”DONE” to save it. 
 
NOTE:   
The SIM card contact can’t add picture to contact information. 
 
Searching for Contacts 
On Contact Screen, do any of the following to easily search for contacts: 
• Tap 
typing. When finishing searching, you could tap 
  to type the first few letters of the contact name to search. The list is filtered when 
  to go back to the contacts screen. 
 
 
1.7 The Home Screen 
On Home Screen, you can quickly access common features and view notifications of missed 
calls, received messages, battery, and the status of the connection.   
 
Default Home Screen: Main functions. 
Icons 
 
 
Descriptions 
Favorites Tray can keep your most important 
shortcuts and folders. 
Tap to launch Application Drawer. 
 
 
You can slide the Home Screen from the left side to the right side or from the right side to the 
left side to switch it. The icons located at the bottom of the home page have different functions: 
 
Self-defined Home Screen: You can add the shortcuts and widgets.   
Icons 
 
 
Functions 
Tethering or hotspot active 
Tap to turn on/ off network. 
 
 
 
 
 
Enable/disable Wi-Fi. 
Enable/disable Bluetooth. 
Enable/disable GPS. 
Enable/disable Data Synchronization. 
Tap to adjust the brightness. 
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