Huawei U86551 User Manual

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12.6.2  Protecting Your Mobile Phone with a Screen 
Lock
To keep your data more secure, lock the screen and/or require a screen 
unlock pattern every time your mobile phone is turned on or wakes up from 
sleep mode.
1. On the 
Settings screen, touch Location & security > Set up screen 
lock > Pattern.
2. Flick your finger vertically, horizontally or diagonally, connect at least four 
dots in any order you choose. Lift your finger from the screen when you 
are finished.
You must drag your finger between the dots on the screen to create the 
pattern, not simply touch individual dots.
3. Your mobile phone will record the pattern. Touch 
Continue.
4. When prompted, draw the screen unlock pattern again, and then touch 
Confirm.
To change your unlock screen pattern, touch Location & security > Change screen lock.
12.6.3  Protecting Your Mobile Phone with a Numeric 
PIN
You can set up a numeric PIN to lock your phone.
1. On the 
Settings screen, touch Location & security > Set up screen 
lock > PIN.
2. Enter at least four characters.
3. Touch 
Continue.
4. Enter the same characters again and touch OK.
To change your PIN, touch Location & security > Change screen lock. 
						

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12.6.4  Unlocking Your Mobile Phone If You Forget the 
Screen Lock Pattern
If you have already created a Google account, you can unlock your mobile 
phone using the following methods.
•  After you have entered the wrong sequence five times, a 
Forgot 
pattern? button will appear. Touch this button to enter the Google 
account interface. After you have entered your Google account 
password, you will be able to reset the unlock pattern.
•  After you have entered the wrong pattern twenty times, you will be taken 
directly to the Google account interface. After you have entered your 
Google account password, you will be able to reset the unlock pattern.
12.7  Managing Applications
12.7.1  Viewing an Installed Application
1. On the Settings screen, touch Applications > Manage applications.
2. In the applications list, do either of the following:
•  Touch  , and then touch 
Sort by size. Then touch an application 
to view its details.
•  Touch an application directly to view its details.
12.7.2  Uninstalling an Application You cannot uninstall the applications that are pre-installed on the 
system.
1. On the 
Settings screen, touch Applications > Manage applications.
2. Touch an application, and then touch Uninstall. You can also touch and hold an item on the Home screen until the Select action menu is displayed, and then touch Uninstall 
application to uninstall the application. 
						

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12.7.3  Moving an Application to the microSD Card
Some applications are designed to be stored on your phone’s USB storage 
or microSD card (depending on the model of your phone), rather than in its 
internal storage. Others are designed so you can change where they are 
stored. You may find it helpful to move large applications off your internal 
storage, to make more room for other applications that do not offer the 
option.
1. On the 
Settings screen, touch Applications > Manage applications.
2. Touch an application in the list. Then touch Move to SD card to move the 
bulk of the application from the phone’s internal storage.
The 
Storage section of the application’s details screen shows details 
about the memory used by the application. If the application can be 
moved, the 
Move to SD card button is active.
Touch Move to phone to move the application back to the phone’s 
internal storage.
12.7.4  Ways to Free Up Your Mobile Phone Memory
•   Move files and email attachments to the microSD card.
•   In 
Browser, clear all temporary Internet files and Browser history 
information.
•   Move applications to the microSD card.
•   Uninstall any downloaded programs that you no longer use.
•   Reset your mobile phone.
12.8  Resetting Your Mobile Phone
12.8.1  Backing Up My Data
You can use your Google account to back up your mobile phone’s settings 
to Google servers. If you replace your mobile phone, the settings you have 
backed up will be transferred to the new mobile phone the first time you sign 
in to your Google account.
1. On the 
Settings screen, touch Privacy.
2. Select the Back up my data check box. 
						

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12.8.2  Restoring Factory Data
If you reset your phone to the settings that were configured at the factory, all 
of your personal data stored on the phone, including information about your 
Google Account, any other accounts, your system and application settings, 
and any applications you have downloaded will be erased. Resetting the 
phone does not erase any system software updates you have downloaded 
or any files on your microSD card, such as music clips or photos.
1. On the 
Settings screen, touch Privacy > Factory data reset.
2. When prompted, touch Reset phone, and then touch Erase everything. 
The mobile phone resets the settings to the original factory settings, and 
then restarts.
12.9  Online Update
Your mobile phone has pre-installed the online update function. When there 
is new software available, the version information appears and prompts you 
to update. You can also touch 
Settings > About phone > Online upgrade 
to check whether the new software is available.
When updating:
1. Back up your personal information. All personal information will be 
removed after the update.
2. Make sure that your microSD card has sufficient space to store the new 
software version.
3. Perform the online update following the onscreen instructions. 
						

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13  Appendix
13.1  FAQs
How Can I Use a microSD Card to Import Contacts to My Phone from 
a Different Mobile Phone?
Your mobile phone only supports contact files in the .vcf format.
1. Save the contacts you want to import to your mobile phone to a microSD 
card as a 
.vcf file.
2. Insert the microSD card into your mobile phone and find the .vcf file 
using File Manager.
3. Touch the .vcf file. The phone displays a message asking whether you 
want to import the contacts.
4. Touch 
OK to import the contacts. Compatibility problems may occur with .vcf files created by different 
mobile phones and certain contact information may be lost after 
contacts are imported. 
 You can also use Bluetooth to share and import contacts.
How Do I Set a Song As a Phone Ringtone?In Music, touch and hold the song to be set as a ringtone, and then touch Set as ringtone.
How Do I Prevent Automatic Change of Screen Orientation When 
Rotating My Phone?
On the Home screen, touch  > Settings > Display > Auto-rotate 
screen to disable the function.
How Do I Set an Unlock Pattern?
On the Home screen, touch  > Settings > Location & security > Set 
up screen lock > Pattern. 
						

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How Can I Change the Input Method?Touch and hold the area where you write text and then select the input 
method you prefer.
How Do I Stop the Song Playing in the Background?Touch the notification bar, flick downwards to open the notifications panel, 
touch the music playing notification to go to the music playing screen, and 
then stop playing the song.
How Do I Return to the Call Screen?While in a call, if you’re on another screen, you can touch the notification 
bar, and flick downwards to open the notifications panel. Then touch the 
current call notification to return to the call screen.
How Do I Create an Application Shortcut on the Home Screen?Touch and hold an application icon on the application screen until the Home 
screen is displayed. Then drag the icon to where you want to place it and 
release your finger.
How Do I Hide the Keyboard?
Touch  to hide the keyboard.
How do I forward a message?Touch and hold a message, and then touch Forward in the menu that 
opens.
Why am I unable to use Navigation?
Navigation is unavailable in some countries or regions.
How Do I Use Quick GPS?
On the Home screen, touch  > Settings > Location & security > Use 
Quick GPS. Quick GPS downloads data to enhance the GPS satellite information 
and may therefore incur additional data charges. 
						

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14  Warnings and Precautions
This section contains important information pertaining to the operating 
instructions of your device. It also contains information about how to use the 
device safely. Read this information carefully before using your device.
Electronic DevicePower off your device if using the device is prohibited. Do not use the device 
when using the device causes danger or interference with electronic 
devices.
Medical Device
•   Follow rules and regulations set forth by hospitals and health care 
facilities. Do not use your device when using the device is prohibited.
•   Pacemaker manufacturers recommend that a minimum distance of 15 
cm be maintained between a device and a pacemaker to prevent 
potential interference with the pacemaker. If you are using a pacemaker, 
use the device on the opposite side of the pacemaker and do not carry 
the device in your front pocket.
Potentially Explosive AtmospherePower off your device in any area with a potentially explosive atmosphere, 
and comply with all signs and instructions. Areas that may have potentially 
explosive atmospheres include the areas where you would normally be 
advised to turn off your vehicle engine. Triggering of sparks in such areas 
could cause an explosion or a fire, resulting in bodily injuries or even 
deaths. Do not power on your device at refueling points such as service 
stations. Comply with restrictions on the use of radio equipment in fuel 
depots, storage, and distribution areas, and chemical plants. In addition, 
adhere to restrictions in areas where blasting operations are in progress. 
Before using the device, watch out for areas that have potentially explosive 
atmospheres that are often, but not always, clearly marked. Such locations 
include areas below the deck on boats, chemical transfer or storage 
facilities, and areas where the air contains chemicals or particles such as 
grain, dust, or metal powders. Ask the manufacturers of vehicles using 
liquefied petroleum gas (such as propane or butane) whether this device 
can be safely used in their vicinity. 
						

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Traffic SecurityObserve local laws and regulations while using the device. In addition, if 
using the device while driving a vehicle, comply with the following 
guidelines:
•   Concentrate on driving. Your first responsibility is to drive safely.
•   Do not talk on the device while driving. Use hands-free accessories.
•   When you have to make or answer a call, park the vehicle at the road side 
before using your device.
•   RF signals may affect electronic systems of motor vehicles. For more 
information, consult the vehicle manufacturer.
•   In a motor vehicle, do not place the device over the air bag or in the air 
bag deployment area. Otherwise, the device may hurt you owing to the 
strong force when the air bag inflates.
•   Do not use your device while flying in an aircraft. Power off your device 
before boarding an aircraft. Using wireless devices in an aircraft may 
cause danger to the operation of the aircraft and disrupt the wireless 
telephone network. It may also be considered illegal.
Operating Environment
•   Do not use or charge the device in dusty, damp, and dirty places or 
places with magnetic fields. Otherwise, it may result in a malfunction of 
the circuit.
•   The device complies with the RF specifications when the device is used 
near your ear or at a distance of 1.5 cm from your body. Ensure that the 
device accessories such as a device case and a device holster are not 
composed of metal components. Keep your device 1.5 cm away from 
your body to meet the requirement earlier mentioned.
•   On a stormy day with thunder, do not use your device when it is being 
charged, to prevent any danger caused by lightning.
•   When you are on a call, do not touch the antenna. Touching the antenna 
affects the call quality and results in increase in power consumption. As a 
result, the talk time and the standby time are reduced.
•   While using the device, observe the local laws and regulations, and 
respect others privacy and legal rights. 
						

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•   Keep the ambient temperature between -10°C and 45°C while the device 
is being charged. Keep the ambient temperature between -10°C to 55°C 
for using the device powered by a battery.
Prevention of Hearing DamageUsing a headset at high volume can damage your hearing. To reduce the 
risk of damage to hearing, lower the headset volume to a safe and 
comfortable level.
Safety of ChildrenComply with all precautions with regard to childrens safety. Letting the child 
play with your device or its accessories, which may include parts that can be 
detached from the device, may be dangerous, as it may present a choking 
hazard. Ensure that small children are kept away from the device and 
accessories.
AccessoriesChoose only batteries, chargers, and accessories approved for use with 
this model by the device manufacturer. The use of any other type of battery, 
charger, or accessory may invalidate any warranty for the device, may be in 
violation of local rules or laws, and may be dangerous. Please contact your 
dealer for information about the availability of approved batteries, chargers, 
and accessories in your area.
Battery and Charger
•   Unplug the charger from the electrical plug and the device when not in 
use.
•   The battery can be charged and discharged hundreds of times before it 
eventually wears out. When the standby time and the talk time are shorter 
than the normal time, replace the battery.
•   Use the AC power supply defined in the specifications of the charger. An 
improper power voltage may cause a fire or a malfunction of the charger.
•   Do not connect two poles of the battery with conductors, such as metal 
materials, keys, or jewelries. Otherwise, the battery may be short-
circuited and may cause injuries and burns on your body.
•   If battery electrolyte leaks out, ensure that the electrolyte does not touch 
your skin and eyes. When the electrolyte touches your skin or splashes  
						

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into your eyes, wash your eyes with clean water immediately and consult 
a doctor.
•   If there is a case of battery deformation, color change, or abnormal 
heating while you charge or store the battery, remove the battery 
immediately and stop using it. Otherwise, it may lead to battery leakage, 
overheating, explosion, or fire.
•   If the power cable is damaged (for example, the cord is exposed or 
broken), or the plug loosens, stop using the cable at once. Otherwise, it 
may lead to an electric shock, a short circuit of the charger, or a fire.
•   Do not dispose of batteries in fire as they may explode. Batteries may 
also explode if damaged.
•   Do not modify or remanufacture, attempt to insert foreign objects into the 
battery, immerse or expose to water or other liquids, expose to fire, 
explosion or other hazard.
•   Avoid dropping the device or battery. If the device or battery is dropped, 
especially on a hard surface, and the user suspects damage, take it to a 
qualified service center for inspection.
•   Improper battery use may result in a fire, explosion or other hazard.
•   Promptly dispose of used batteries in accordance with local regulations.
•   The device should only be connected to products that bear the USB-IF 
logo or have completed the USB-IF compliance program.
Cleaning and Maintenance
•   The device, battery, and charger are not water-resistant. Keep them dry. 
Protect the device, battery, and charger from water or vapor. Do not touch 
the device or the charger with a wet hand. Otherwise, it may lead to a 
short circuit, a malfunction of the device, and an electric shock to the 
user.
•   Do not place your device, battery, and charger in places where they can 
get damaged because of collision. Otherwise, it may lead to battery 
leakage, device malfunction, overheating, fire, or explosion.
•   Do not place magnetic storage media such as magnetic cards and floppy 
disks near the device. Radiation from the device may erase the 
information stored on them.