No part of this publication may be quoted, reproduced, translated
or used in any form or by any means, electronic or mechanical,
including photocopying and microfilm, without the prior written
permission of ZTE Corporation.
ZTE Corporation reserves the right to make modifications on
print errors or update specifications in this guide without prior
notice.
Version No. : V1.0
Edition Time : 09-2011
Manual No. : 079584503708
Thank you for choosing F451 digital mobile phone. It works
in CDMA network, you can make calls and send messages or
emails while traveling or roaming.
To guarantee this mobile phone is always in its best condition,
please read this manual carefully and keep it for future reference.
To ensure your safety, read the section: For Your Safety
thoroughly before using this phone for the rst time.
Note: The pictures and icons presented in this manual are meant
for illustrative purposes only and may not accurately represent
the actual pictures and icons found on the phone. Your phone
contains the most up to date information.
Phone Overview
8
1. Earpiece: Allows you to hear the caller.
2. LCD Screen: Displays all the information needed to operate
your phone.
3. Left Soft Key: Press to display the Contacts List or access
the function listed above the key.
4. Send Key: Press to make or receive a call. From the home
screen, press to access the All Calls list.
5. Speakerphone Key: Press to activate or deactivate the
speakerphone.
6. Music Key: Press to display the My Music menu from the
home screen.
7. Voicemail Key: Press and hold to dial your voicemail from
home screen.
8. Vibration Mode Key: Press and hold to turn the vibration
mode on or off from the home screen.
9. Lock Key:
screen.
10. Message Key: Press to open a new text message from the
home screen.
11. Center Select Key: Allows you to access the menu screen.
It also allows you to accept choices when navigating through
a menu.
12. CLR Key: Delete characters or entire words during text entry
mode. Press to return to the previous menu or screen.
13. End/Power Key: Press to end calls or close applications.
Press and hold to power your phone on/off.
14. Right Soft Key: Press to enter the message box or access
the function listed above the key.
15. Directional Key: Allows you to scroll through phone menu
options and provides a shortcut to phone functions from
home screen.
Press and hold to lock the keypad from the home
9
16. Accessory/Charger Port: Connects the phone to the wall
charger, or other compatible accessories.
17. Camera Key: Press and hold to access the camera screen
from the home screen.
18. Camera Flash: Camera ash used for taking pictures.
19. External Speaker: Allows you to listen to music, sounds or
ringtones.
20. Camera: Built-in camera.
21. Headset Jack: Plug in an optional headset for convenient
and hands-free conversations or music playback.
22. Volume Keys: Allows you to adjust the master volume or the
earpiece volume during a call.
23. Voice Recorder Key: Press to launch Voice Recorder from
the home screen.
10
Specications
ModelF451
Dimensions (L x W x H) 110 × 61 × 12.5 mm
Weightapproximately 100 g including battery
Continuous Standby
Time
Continuous Talk Timeabout 240 minutes
Note: The phone’s talk and standby times are based on ideal
working environments. Network conditions or, for example, use of
the extended backlight or browser, can use more battery power
and reduce talk/standby time.
about 220 hours
11
Getting Started
Installing the Battery
1. Remove the battery cover by pressing downward and sliding
it off.
2. Align the battery contacts with the phone terminal and press
until you hear a “click”.
Align the battery cover over the battery compartment and slide it
upward until it clicks into place.
12
Installing the microSD Card
Your phone supports microSD card up to 16 GB. You can store
music, pictures, and other les on the microSD card.
Note:
microSD logo
1. Position the microSD card with the metal contacts facing
down and slide it into place until it is fully inserted and locked
in place.
is a trademark of the SD Card Association.
2. Replace the battery cover.
Charging the Battery
Your device comes with a wall adapter and a USB cable which
connect together to charge your phone. To charge your phone:
1. Connect the USB cable into the wall adapter.
13
2. Plug the USB cable (as shown below) into the phone’s
Charger/Accessory Port.
3. Plug the wall adapter into a power outlet.
Warning: Please use only an approved charging accessory to
charge your device. Improper handling of the charging port, as
well as the use of an incompatible charger, may cause damage
to your device and void the warranty.
When not using the battery for a long time, remove it from the
phone and store in a cool dry place.
Powering On/Off Your Phone
It’s important to fully charge the battery before turning on your
phone.
• To power on the phone, press and hold the
until the LCD screen lights up.
Note: If the phone lock code has been activated, you need to
enter the code to unlock the phone. The default lock code is the
last 4 digits of your phone number.
• To power off the phone, press and hold the
until the display turns off.
14
End/Power Key
End/Power Key
Home screen
The start screen indicates that your device is in the home screen.
1
5
2
3
1. Signal strength:
device is indicated by the number of bars displayed.
2. Contacts: Press the Left Soft Key to select this option.
3. Menu: Press the Center Select Key to select this option.
4. Message:
5. Battery strength: Four bars indicate a fully charged battery.
Note: The start screen may vary if you change the default
display settings.
The strength of the signal received by the
Press the Right Soft Key to select this option.
4
Main Display Icons
Signal StrengthAirplane Mode
No ServiceBattery Level
All Sounds OffAlarm Only
15
Vibrate OnMissed Calls
Message
Alarm On
RoamingData Transfer
DormantSecure Sockets Layer
Voice CallKeypad Lock
Bluetooth OnCalendar Appointment
Tip: Press Center Select Key [Menu] > Settings & Tools >
Phone Info > Icon Glossary for more information.
16
Basic Operation
Menu Navigation
Your phone can be customized via the menu. Each function can
be accessed by scrolling with the Directional Key or by pressing
the number that corresponds with the menu item.
1. To access the menu, press the Center Select Key [Menu].
2. To scroll through the menu, press the Directional Key up,
down, left or right, or press the number key that corresponds
to the desired menu item.
3. To return to the previous page, press the CLR Key. To exit
the current menu and return to home screen, press the End/
Power Key.
4. To access the message box, press the
[Message]. To access the contact List, press the Left Soft
Key [Contacts].
In this manual, the steps needed to access a function or menu,
are shown in a straightforward condensed form. For example,
press the Center Select Key [Menu] > Settings & Tools >
Tools > Calendar.
Locking/Unlocking Your Phone
To keep your phone from unauthorized use, you can lock the
phone. The use of your phone is restricted once the phone is
locked. You can still make emergency calls when the phone is
locked.
Locking Your Phone
1. Press the Center Select Key [Menu] > Settings & Tools >
Phone Settings > Phone Security.
2. Enter the phone lock code and press the Center Select
Key. The default lock code is the last 4 digits of your phone
number.
17
Right Soft Key
3. Select Lock Phone Now and press the Center Select Key.
Tip: You can choose to make the phone locked automatically when you power it on. For detailed information, see “Phone
Lock Setting”.
Unlocking Your Phone
1. Press the Right Soft Key [Unlock] from the home screen.
2. Enter the phone lock code and press the Center Select Key.
Locking/Unlocking the Keypad
• To lock the keypad, press and hold the Lock Key from the
home screen.
• To unlock the keypad, press the Center Select Key, or
press the Left or Right Soft Key and Center Select Key
sequentially depending on the current unlock options.
Note: To change the unlock options, press the Center Select
Key [Menu] > Settings & Tools > Keyguard Settings > Unlock
Options and select Press Once or Press Twice.
Tip: You can choose to make the keypad locked automatically. Just press the Center Select Key [Menu] > Settings & Tools >
Keyguard Settings > Auto lock, and select On.
Easy Set-up
Easy Set-up will guide you to set the common sound or display
setting options.
1. Press the Center Select Key [Menu] > Settings & Tools >
Sounds Settings/Display Settings > Easy Set-up.
2. Follow the prompts on the screen, and press the Center
Select Key to set each sound or display option or press the
Right Soft Key to skip setting the option.
Note: Press the CLR Key to go to the previous options and
change the settings. Press the Left Soft Key [Preview] or [Play]
to view or play the option before setting it.
18
Entering Text
Your phone has a QWERTY keypad – a compact version of
standard computer keyboard. Here’s how it works.
• Press
• To type a number or symbol, press
corresponding keys. Press twice to enter all numbers or
symbols.
• Press the Left Soft Key to change the input mode: predictive
text, alphabetic and numeric.
• To open the symbols, press
and select Symbols. Use the Directional Key and the
Center Select Key to enter a symbol. You can press the
Left/Right Soft Key [Prev/Next] to view more symbols.
• To open the smileys, press
and select Smileys. Use the Directional Key and the
Center Select Key to enter a smiley.
• To add a quick text, press the Right Soft Key [Options] and
select Insert Quick Text, choose an entry and press the
Center Select Key.
• To move the cursor, use the Directional Key.
to switch lowercase and uppercase letters.
and then press the
or press the Left Soft Key
or press the Left Soft Key
19
• To delete the character before the cursor, press or the
CLR Key. In predictive text input mode, hold or the CLR
Key to delete the word before the cursor. In alphabetic or
numeric input mode, hold or the CLR Key to delete all
characters before the cursor.
• To start a new line, press
• To enter a space, press
.
.
20
Calling
Making a Call
Using the Keypad
1. Enter the destination phone number.
2. Press the Send Key.
Note: To make an emergency call, enter the emergency number
and press the Send Key. If possible, remain stationary and keep
the line connected.
Using the Contacts
1. Press the Center Select Key [Menu] > Contacts > Contact
List.
2. Select a contact you want to call. If the contact has multiple
numbers, you can open the contact and select a phone
number.
3. Press the
Note: Selecting a contact and then pressing the Send Key will
dial the default number of the contact automatically.
Using the Call History
1. Press the Center Select Key [Menu] > Recent Calls.
2. Navigate through the menu and press the Center Select
3. Select a number or contact you want to call and press the
Shortcut: Press the Send Key in home screen to view all calls
list.
Making an International Call
1. Press on the keypad to display the ‘+’ required for
Send Key.
Key to view the missed, received, dialed or all calls.
Send Key.
international calls.
21
2. Enter the country code, area code, and phone number.
3. Press the Send Key.
Answering a Call
When the phone rings or vibrates, press the Send Key to answer
the call.
If you don’t want to answer, just press the End/Power Key.
Note: You can change the default call answering options by
pressing the Center Select Key [Menu] > Settings & Tools >
Call Settings > Answer Options.
Speed Dialing
This feature is ideal for frequently dialed numbers and allows
contact entries to be dialed via the keypad with only one, two, or
three key presses.
One-Touch Dialing:
1-9: Press and hold the number you wish to connect to for more
than 1 second.
1: Speed Dial entry 1 (Voicemail) is already assigned.
Two-Touch Dialing:
10-99: Press the rst digit then press and hold the second digit of
the number to dial.
Three-Touch Dialing:
100-999: Press the rst and second digits, then press and hold
the third digit of the number to dial.
Assigning a Speed Dial
1. Press the Center Select Key [Menu] > Contacts > Speed
Dials.
2. Select a speed dial entry, or enter the speed dial digits in the
Go to eld, then press the Center Select Key [Set].
3. Select a contact in the contact list and press the Center Select Key. If the contact has multiple phone numbers, you
need to choose a number.
22
4. Select Yes and press the Center Select Key.
Removing a Speed Dial
1. Press the Center Select Key [Menu] > Contacts > Speed
Dials.
2. Select a speed dial entry, or enter the speed dial digits in the
Go to eld.
3. Press the Right Soft Key [Remove].
4. Select Yes and press the Center Select Key.
Wait/Pause
Pauses are used for automated systems (i.e., voicemail or calling
cards). The numbers entered after the pause will automatically
be dialed after the pause. This feature is useful for dialing into
systems that require a code.
Wait (W)
The phone stops dialing until you press the Send Key to dial the
next number.
1. Enter the phone number.
2. Press the Right Soft Key [Options].
3. Select
4. Enter additional number(s).
5. Press the Send Key to dial.
2-Sec Pause (P)
The phone waits 2 seconds before sending the next string of
digits automatically.
1. Enter the phone number.
2. Press the Right Soft Key [Options].
3. Select Add 2-sec Pause and press the Center Select Key.
4. Enter additional number(s) (pin number or credit card
5. Press the Send Key to dial.
Add Wait and press the Center Select Key.
number).
23
In-Call Options
The following features and options are available during a call.
• To adjust the volume, press the Volume Keys.
• To mute or unmute your voice, press the Left Soft Key [Mute/
Unmute].
• To activate or deactivate the speakerphone, press the
Speakerphone Key.
• Press the Right Soft Key [Options] for more options.
New Txt Message: Create a new text message.
Contact List: View the contact list.
Recent Calls: View the call history.
Bluetooth Menu: Open the Bluetooth menu.
Main Menu: Open the main menu.
Notepad: Open the notepad.
Voice Privacy: Turn the voice privacy feature on or off.
24
Recent Calls
Press the Center Select Key [Menu] > Recent Calls to view the
call history.
• Missed: View the calls you did not answered.
• Received: View the calls you answered.
• Dialed: View the calls made from your phone.
• All: View the missed, received and dialed calls.
• View Timers: View the information of Last Call, All Calls,
Received Calls, Dialed Calls, Roaming Calls, Transmit
Data, Received Data, Total Data, Last Reset, Lifetime
Calls and Lifetime Data Counter. And you can also reset
them separately or together.
25
Contacts
Adding a New Contact
1. Press the Center Select Key [Menu] > Contacts > New
Contact.
2. Enter the contact information you need and press the Center
Select Key [Save].
Editing a Contact
1. Press the Left Soft Key [Contacts] in the home screen or
press the Center Select Key [Menu] > Contacts > Contact
List.
2. Select a contact and press the Left Soft Key [Edit].
3. Edit or add the contact information and press the Center
Select Key [Save].
Updating a Contact
1. Enter the phone number you want to save in the home
screen.
2. Press the Left Soft Key [Save].
3. Select Update Existing and press the Center Select Key.
4. Select the contact you would like to update and press the
Center Select Key.
5. Select the desired number type and press the Center Select
Key to update the contact.
Changing the Default Number
1. Press the Left Soft Key [Contacts] in the home screen.
2. Select a contact and press the Left Soft Key [Edit].
3. Highlight the number you would like to set as the default and
press the Right Soft Key [Options].
4. Select Set as Default and press the Center Select Key.
5. Select Yes and press the Center Select Key.
26
6. Press the Center Select Key [Save] to update the contact's
information.
Searching a Contact
1. Press the Left Soft Key [Contacts] in the home screen to
view the contact list.
2. Enter the contact name in the Go to eld and the contacts
matching the name will be highlighted.
Managing Contacts
Deleting Contacts
1. Press the Left Soft Key [Contacts] in the home screen.
2. Press the Right Soft Key [Options], select Manage Contacts > Erase and press the Center Select Key.
3. Press the
or press the Right Soft Key [Mark All] to mark all contacts
and then press the Left Soft Key [Done].
4. Select Yes and press the Center Select Key to conrm.
Note: You can also select a contact in the contact list, press the
Right Soft Key [Options] > Erase, select Yes and press the
Center Select Key to delete it.
Locking/Unlocking Contacts
You can lock or unlock the phone contacts in the contact list and
the locked contacts cannot be deleted.
1. Press the
2. Press the Right Soft Key [Options], select Manage Contacts > Lock/Unlock and press the Center Select Key.
3. Press the
you want to lock or unlock, or press the Right Soft Key [Mark
All] to mark all contacts and then press the Left Soft Key
[Done].
Center Select Key [Mark] to select the contacts,
Left Soft Key [Contacts] in the home screen.
Center Select Key [Mark] to mark the contacts
27
Copying Contacts to the microSD Card
You can copy contacts to a microSD card when it is inserted into
the phone. The contact les are saved in synched\contact on
the microSD card.
1. Press the Left Soft Key [Contacts] in the home screen.
2. Press the Right Soft Key [Options], select Manage
Contacts > Copy to Memory Card and press the Center
Select Key.
3. Press the Center Select Key [Mark] to mark the contacts, or
press the Right Soft Key [Mark All] to mark all contacts and
then press the Left Soft Key [Done].
4. Select
Note: You can also copy or move the contacts in the microSD
card to your phone.
Yes and press the Center Select Key.
Sending Contacts via Bluetooth
You can send the contacts (V-card) to the Bluetooth devices that
support V-card.
1. Press the
2. Select a contact and press the
3. Select Send via Bluetooth and press the Center Select
4. Press the Center Select Key [Mark] to mark more contacts,
5. Follow the on-screen prompts and pair with a new Bluetooth
Note: Not all Bluetooth devices can receive V-card. Not all
contact information is contained in a V-card.
Left Soft Key [Contacts] in the home screen.
Key.
or press the Right Soft Key [Mark All] to mark all contacts
and then press the Left Soft Key [Done].
device or select a previously-paired Bluetooth device to send
the V-card.
Right Soft Key [Options].
28
Grouping Contacts
It’s easier to manage your contacts by grouping them. You
can add, rename, delete the groups or send a message to all
contacts in a group.
Adding Contacts to a Group
1. Press the Center Select Key [Menu] > Contacts > Groups.
2. Select a group and press the Right Soft Key [Options].
3. Select Add and press the Center Select Key.
4. Press the Center Select Key [Mark] to mark your desired
contacts and press the Left Soft Key [Done].
Adding a New Group
1. Press the Center Select Key [Menu] > Contacts > Groups.
2. Press the
3. Enter the new group name and press the Center Select Key
Left Soft Key [New].
[Save].
Sending a Message to Group Members
1. Press the Center Select Key [Menu] > Contacts > Groups.
2. Select a group you want to send a message to and press the
Right Soft Key [Options].
3. Select New Txt Message or New Multimedia Message and
press the Center Select Key.
4. Write the message and press the Center Select Key [Send].
My Name Card
My Name Card is your personal contact, which you can send as
a V-card via a message or Bluetooth.
Editing My Name Card
1. Press the Center Select Key [Menu] > Contacts > My
Name Card.
2. Press the Center Select Key [Edit].
29
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