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 first 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
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: Press and hold to lock the keypad from the home 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.
8
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.
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 flash 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.
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Specifications
Model
F451
Dimensions (L x W x H)
110 × 61 × 12.5 mm
Weight
approximately 100 g including battery
Continuous Standby Time
about 220 hours
Continuous Talk Time
about 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.
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”.
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Align the battery cover over the battery compartment and slide it upward until it clicks into place.
Installing the microSD Card
Your phone supports microSD card up to 16 GB. You can store music, pictures, and other files on
the microSD card.
Note: microSD logo is a trademark of the SD Card Association.
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.
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.
2.Plug the USB cable (as shown below) into the phone‟s Charger/Accessory Port.
11
2
4
3
1
5
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 End/Power Key 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 End/Power Key until the display turns off.
Home screen
The start screen indicates that your device is in the home screen.
1. Signal strength: The strength of the signal received by the 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.
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4. Message: Press the Right Soft Key to select this option.
:
CDMA 1X Signal Strength
:
Airplane Mode
: No Service
:
Battery Level
:
All Sounds Off
:
Alarm Only
:
Vibrate On
:
Missed Calls
: Message
: Alarm On
: Roaming
: Data Transfer
: Dormant
: Secure Sockets Layer
: Voice Call
: Keypad Lock
: Bluetooth On
: Calendar Appointment
5. Battery strength: Four bars indicate a fully charged battery.
Note: The start screen may vary if you change the default display settings.
Main Display Icons
Tip: Press Center Select Key [Menu] > Settings & Tools > Phone Info > Icon Glossary for
more information.
13
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 Right Soft Key [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.
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.
14
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.
Entering Text
Your phone has a QWERTY keypad – a compact version of standard computer keyboard. Here‟s
how it works.
Press to switch lowercase and uppercase letters.
To type a number or symbol, press and then press the 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 or press the Left Soft Key and select Symbols. Use the
Directional Key andthe 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 or press the Left Soft Key and select Smileys. Use the
Directional Key andthe 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 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 .
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