Defender SENTINEL 3 User manual

User Manual
Read me first
Please read this manual before operating your
mobile phone, and keep it for future reference.
The descriptions in this manual are based on the
default settings.
Images and screenshots used in this manual may
differ from the actual product.
Available features and additional services may
vary by device, software or service provider.
Our company is not liable for performance issues
caused by third-party applications.
DEFENDER 3
DEFENDER 3ECO

Contents
Assembling................................................................................................................................................ - 1 -
Unpack ............................................................................................................................................
...........................................................................................................................
- 1 -
Charge the battery - 1 -
Install the SIM card............................................................................................................................ - 1 -
Install the memory card..........................................................................................................................
................................................................................................
- 1 -
Getting started ........................................................................................................................................ - 2 -
Turn your device on, reboot and off - 2 -
Switch to flight mode ....................................................................................................................... - 2 -
Home screen .................................................................................................................................... - 2 -
Task bar ...........................................................................................................................................
.....................................................................................................................
...................................................................................................................
- 2 -
Notification panel .............................................................................................................................. - 3 -
Auto rotation ...................................................................................................................................- 3 -
Lock & unlock the screen - 3 -
Customize your device - 4 -
Manage applications ........................................................................................................................
........................................................................................................................
- 4 -
Security ........................................................................................................................................ - 4 -
Display size .....................................................................................................................................- 4 -
Data saver ......................................................................................................................................
.......................................................................................................................................
- 5 -
Quick Switch .................................................................................................................................. - 5 -
Reset mobile phone - 5 -
Communication - 5 -
Phone ............................................................................................................................................. - 5 -
Contacts .......................................................................................................................................... - 6 -
Messaging ........................................................................................................................................ - 8 -
Email ................................................................................................................................................ - 9 -
Web ...................................................................................................................................................... - 10 -
Browser ....................................................................................................................................... - 10 -
Entertainment......................................................................................................................................... - 10 -
Camera ......................................................................................................................................... - 10 -
Tools ..................................................................................................................................................... - 11 -
Calendar ....................................................................................................................................... - 11 -
Alarm .......................................................................................................................................... - 12 -
File Manager ........................................................................................................................... - 12 -
Sound Recorder ....................................................................................................................... - 12 -
Calculator ..................................................................................................................................... - 12 -
Connectivity ........................................................................................................................................ - 13 -
USB Connection ............................................................................................................................ - 13 -
Wi -Fi ............................................................................................................................ - 13 -
Bluetooth ..................................................................................................................................... - 13 -
Safety Precautions ...............................................................................................................................- 14 -
Care & Maintenance............................................................................................................................................. - 15 -
Warnings ....................................................................................................................................... - 15 -

Unpack
Check your product box for the following items.
Mobile phone
User manual
Charger
You can purchase additional accessories from your local
retailer.
Charge the battery
Before using the device for the first time, you must charge
the battery.
1．You can charge the device with a travel adapter or by
connecting the device to a PC with a USB cable.
2．Battery full icon is shown when finished if your device is
off.
Warning：Use only original batteries and chargers.
Unapproved chargers or cables can cause batteries to
explode or damage your device.
Install the SIM card
You need to insert a SIM card to use the Phone function.
To install the SIM card, follow the instructions below.
1.Make sure that the card’s gold contacts face into the
device.
2.Push the SIM card into the slot.
Install the memory card
To store additional multimedia files, you need insert a
memory card.
1.Insert a memory card with the gold contacts facing
downwards.
2.Push the memory card into the slot.
Notice: Our company uses approved industry standards
for memory cards, but some brands may not be fully
compatible with your device.
Assembling

Turn your device on, reboot and off
To turn on your device, press and hold the power key.
To reboot your device, press and hold the power key,
select “reboot”.
To turn off your device, press and hold the power key,
select “power off”.
Switch to flight mode
To use only your device’s non-network services, switch to
flight mode. Please follow the instructions below to turn on
flight mode:
Tap Settings Network & Internet Advanced
Airplane mode from application list to turn on flight mode.
Home screen
The home screen has multiple panels. Scroll left or right to
the panels on the home screen, you can view indicator
icons, widgets, shortcuts to applications, and other items.
Task bar
The task bar is shown at the top of the screen. It displays
commonly used option buttons, battery level indicator,
current time and other indicator icons.
Getting started
Indicator icons
Icon Icon
Open Wi-Fi available Flightmode
Wi-Fi connected New email
Signalstrength New text or message
BT connected Call in progress
Uploadingdata Missed call
Downloadingdata Call on hold
Connectedto PC Call
Alarm power level

Notification panel
Pull down to open the top of the notification bar to show
the 6 users commonly used shortcut switch, support click
on the switch, and long press to enter the corresponding
settings. If you continue to pull down the notification bar to
display all the quick switch, fast switch in the lower right
corner of page will display a "Edit" button, click to add /
delete custom shortcut switch, or drag the sort.
Tap icon to activate or deactivate wireless connection
features and other settings.
Wi-Fi：Activate or deactivate the Wi-Fi connection.
Bluetooth：Activate or deactivate the Bluetooth connec-
tion.
Notifications：Activate or deactivate the notification
feature.
Flashlight：Activate or deactivate the Flashlight.
Auto-rotate screen：Activate or deactivate the auto
rotation feature.
Battery Saver：Activate or deactivate the Battery Saver.
Brightness：Adjust the basic brightness level of the
display to lighter or darker.
Settings：Access Settings application.
Auto rotation
If you rotate the device while using some features, the
interface will automatically rotate as well. To prevent the
interface from rotating, open the notifications panel and
select Auto-rotate screen, then tap it to Off.
Lock & unlock the screen
Slide to unlock the screen.
To lock the screen manually, press Power key.
Music beingplayed Don't disturb
Auto-rotate
Flashlight

To customize your device according to your preferences,
tap Settings from application list or notification panel.
Manage applications
To manage the applications installed on your device, tap
Settings Apps& notifications.
1.To uninstall an application, select an item and tap
UNINSTALL, tap OK to confirm.
2.To stop or change the settings of an application, select
an item and tap the option you need.
Security
You can protect your device and data by setting screen
lock or encrypting your mobile phone.
Set a screen lock
To set a screen lock, tap Settings Security& location
→Screen lock from application list.
None：Deactivate the screen lock.
Swipe：Slide to unlock the screen.
Pattern：Draw a pattern to unlock. Follow the
instructions to draw your lock pattern. When prompted,
draw the pattern to unlock the screen.
PIN：Enter a numeric PIN to unlock. When prompt-
ed, enter the PIN to unlock the screen.
Password：Enter a passcode to unlock. When
prompted, enter the passcode to unlock the screen.
Screen time-out
Select Settings Display Advanced Sleep from
application list, you can set the time before the screen
times out and goes into lock mode. (you have not entered
any characters or made other selections).
Display size
1.You can set it Settings Display Advanced
Display size
Data saver
1.You can set it Settings Network & Internet Data
usage Data saver
Customize your device

1. You can switch applications by simply double clicking
the "Recents" button
Reset mobile phone
You can reset system and desktop settings to their original
values by the following steps:
1.Select Settings System Advanced Reset
options from application list.
2.Tap Erase all data (factory reset).
3.Tap RESET PHONE.
4.Tap ERASE EVERYTHING.
The device resets to the factory default settings automati-
cally.
Warning: Factory data reset will erase all data from your
device, including your Google account, system and
application data and settings, and downloaded applica-
tions.
Communication
Phone
To use calling functions, tap Phone from application list.
To make calls, you can use any of the three ways:
Enter numbers by using the virtual numeric keypad
on the screen
Make a call from call log.
Make a call from contacts.
Answer a call
To answer a call, swipe up the screen.
Decline or end a call
To decline a call, Swipe down the screen.
To end a call in progress, tap the red button.
Call settings
To change call settings, tap the option button at the lower
Right below the dial-up interface.
1.Ringtone & Vibrate
You can set different ringtones for incoming calls.
Settings Sound Select phone ringtone to open a list
of ringtones, select the desired ringtone, and then select
OK to confirm.
Quick Switch

Settings Sound Select Also vibrate for calls to
open the vibration function and the phone vibrates to notify
you when call is coming.
2.Dial pad touch tones
Settings sound Advanced Dial pad tones You
can open or close the Dial pad tones.
3.Voice mail
With the call divert network service, you can direct
incoming calls to your voice mailbox.
Tap Service to set your voice mail service provider.
Tap Setup to set your voice mail number.
Tap Sound to set the desired ringtone for your voice
mail.
Tick the box next to Vibrate and the mobile phone
vibrates to notify you of a voice mail.
4.Fixed Dialing Numbers
If FDN mode is activated, your device will restrict outgoing
calls, except for the numbers stored in the FDN list.
5.Quick responses
Quick response is a feature to reject the call with the
predefined messages.
Tap one of the pre-written messages to be displayed when
you want the call to be rejected, then tap OK.
6.Call forwarding
Call diverting is a network feature to send incoming calls to
another number that you specify.
7.Call waiting
If call waiting is activated, the network notifies you of a
new incoming call while you have a call in progress or you
can make a new call during a call.
Contacts
Tap Contacts from application list to access contacts.
All：List all your contacts saved in the device
memory and SIM cards.
Favorites：List the contacts that you have set as
favorites or the contacts that you have sent message to or
dialed.

Add new contact
1.Access Contact number.
2.Click
3.Enter necessary Contact name.
4.Click
Edit a contact
1.To edit a contact, select and click the contact you want to
change.
2.Click the edit icon at the upper right.
3.Change necessary fields.
4.Click
Import/Export contacts
1.Import from the SIM card
To copy the contacts from the SIM card, click the option
button at the upper left and then select Settings Import-
COPY CONTACTS FROM select USIM click NEXT
COPY CONTACTS TO select Phone contact click
NEXT, select contacts, and then click OK.
2.Import from MEMORY card
To import contact files (in .vcf format) from a memory card
to your device, tap the option button at the upper left and
then select Import COPY CONTACTS FROM select
MEMORY card click NEXT COPY CONTACTS TO
select Phone contact click NEXT, select one or multiple
or all vCard files to import, click OK, Choose vCard files,
and then click OK.
3.Export to MEMORY card
To export contacts from your device to a memory card, tap
the option button at the upper left and then select Export
Export contacts select Export to .vcf file select
MEMORY card and then click SAVE Export to
MEMORY card .
Search for contacts
1.Click at the upper right from contact list screen, enter
the desired information, then your device shows the result.
Messaging
Learn to create and send a text or multimedia message,
and view or manage messages that you have sent or
received.
View messages

1.Click Messaging from application list.
2.Click the message to view the detailed information.
Create and send SMS
1.Click enter NEW MESSAGE.
2.In Type name or number field, enter the recipient’s
mobile phone numbers manually. If you enter more than
one number, separate the numbers with a comma.
3.In Type test message field, enter the text of the
message.
4.Click Send to send the message.
Create and send MMS
Multimedia message can include pictures, sound and text.
1.Click enter NEW MESSAGE.
2.In Type name or number field, enter the recipient’s
mobile phone numbers manually. If you enter more than
one number, separate the numbers with a comma.
3.Click Attach to Select one of the items below.
Pictures: Insert image.
Capture picture: Capture new picture and insert the
picture.
Videos: Insert video.
Capture video: Capture new video clip and insert the
video clip.
Audio: Insert sound clip.
Record audio: Record sound clip and insert the
sound clip.
Slideshow: Add more than one slide.
Contact: Insert contacts
Calendar: Insert Calendar
4.In Type test message field, enter the text of the
message.
5.Click Send to send the Multimedia message.
Email
To receive and send mail, you must have a remote
mailbox service. This service may be offered by a service
provider. Your device is compliant with applicable internet
standards for POP3/IMAP/Exchange.
Before you can send or receive mail on your device, you
need to set up an email account and define the email
settings correctly. You can define more than 1 mailbox.