Huawei CHM-U01 Dimensions

HUAWEI CHM-U01 Smartphone FAQs
Issue
01
Date
2015-03-12
HUAWEI TECHNOLOGIES CO., LTD.

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Version
Changed
Section
Change Description
Date
Author
01
N/A
Finished the hotline FAQs for the
CHC-U01/U03/U23 and CHM-U01 general
versions.
2015-03-12

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Contents
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Contents
1 Basics ...............................................................................................................................................1
1.1 Can I use 4G networks with my phone? .......................................................................................................................1
1.2 Color schemes...............................................................................................................................................................1
1.3 Selling points................................................................................................................................................................1
1.4 Your phone at a glance..................................................................................................................................................2
1.5 Installation ....................................................................................................................................................................3
1.5.1 How do I open the battery cover?..............................................................................................................................3
1.5.2 How do I install a SIM/UIM card? ............................................................................................................................4
1.5.3 How do I install a microSD card?..............................................................................................................................5
1.5.4 How do I install the battery?......................................................................................................................................5
1.5.5 How do I close the battery cover?..............................................................................................................................6
1.6 Home screens................................................................................................................................................................6
1.6.1 How do I add or delete a home screen? .....................................................................................................................6
1.6.2 How does my phone's main menu look like?.............................................................................................................7
1.6.3 How do I edit the main menu?.................................................................................................................................10
1.6.4 How do I switch between 2D and 3D home screens?.............................................................................................. 11
1.6.5 How do I add a shortcut for an application to a home screen? ................................................................................ 11
1.7 Contacts......................................................................................................................................................................12
1.7.1 How do I create a contact or assign a photo to a contact? .......................................................................................12
1.7.2 How do I import or export contacts? .......................................................................................................................14
1.7.3 How many contacts can my phone save?.................................................................................................................15
1.7.4 How do I add a contact to a contact group?.............................................................................................................15
1.8 Text messaging ...........................................................................................................................................................18
1.8.1 How do I change the input method when editing a text message?...........................................................................18
1.8.2 How do I lock a text message in a conversation? How do I delete one or more conversions and text messages? ..19
1.8.3 How do I forward a message or send a message to multiple recipients? .................................................................19
1.8.4 How many Chinese and English characters can be contained in a text message? ...................................................19
1.8.5 How many text messages can be saved on my phone?............................................................................................19
1.8.6 How do I set the SMS center number? ....................................................................................................................21
1.9 Calls............................................................................................................................................................................21
1.9.1 Can I record a call? Where is the recording saved?.................................................................................................21
1.9.2 How do I switch between calls or merge two calls to have a conference call?........................................................21
1.9.3 What will my phone display when one card is being used for a call and the other receives a call? ........................22

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1.10 Multimedia messaging..............................................................................................................................................22
1.10.1 How do I send a multimedia message?..................................................................................................................22
1.10.2 What can I do if I can't send or receive multimedia messages?.............................................................................23
1.10.3 Is there any restriction on the size, format, or resolution of the file to be attached to a multimedia message? .....23
1.10.4 Where are the multimedia message attachments saved?........................................................................................23
1.11 Music ........................................................................................................................................................................24
1.11.1 How are my songs sorted? .....................................................................................................................................24
1.11.2 How do I create a playlist?.....................................................................................................................................24
1.11.3 What playback modes does my phone support? ....................................................................................................24
1.11.4 How do I play songs in the background, exit Music, and view the lyrics when a song is playing?.......................24
1.12 Camera......................................................................................................................................................................24
1.12.1 If my phone has no microSD card installed, can I shoot photos or videos?...........................................................24
1.12.2 Why can't I open some photos or videos on my phone? ........................................................................................24
1.12.3 Where are my photos and videos saved by default? Can I change the save location?...........................................25
1.12.4 How do I edit a photo or video or add a photo frame? ..........................................................................................25
1.12.5 Does my phone support HD videos? .....................................................................................................................25
1.12.6 Can I disable the shutter sound? ............................................................................................................................25
1.12.7 How do I toggle between the front and rear cameras?...........................................................................................25
1.12.8 What is the format of the recorded video clips? What are the video clip sizes?....................................................25
1.12.9 What photo formats and sizes does my phone support? ........................................................................................26
1.13 Streaming media.......................................................................................................................................................26
1.13.1 Does the phone support flashlight?........................................................................................................................26
1.13.2 Will my phone stop playing streaming media when a call comes in? If yes, will it resume playing when the call
ends?.................................................................................................................................................................................26
1.13.3 Why can't my phone play some streaming media? ................................................................................................26
1.13.4 What might cause poor quality of online streaming media played on my phone?.................................................26
1.13.5 Will simultaneously playing and downloading online streaming media take up my phone's storage space? ........26
1.14 Bluetooth ..................................................................................................................................................................27
1.14.1 Does my phone support Bluetooth headsets? ........................................................................................................27
1.14.2 Can I connect my phone to a Bluetooth USB keyboard or mouse?.......................................................................27
1.14.3 What files can be transmitted using Bluetooth?.....................................................................................................27
1.14.4 How do I send a file using Bluetooth?...................................................................................................................27
1.14.5 Why can't my phone be discovered by other Bluetooth devices?..........................................................................28
1.14.6 What is Bluetooth's working range? ......................................................................................................................30
1.14.7 Why can't I pair my phone with other Bluetooth devices? ....................................................................................30
1.14.8 Can my computer use my phone's data connection through Bluetooth?................................................................30
1.15 GPS navigation.........................................................................................................................................................31
1.15.1 Does my phone support offline navigation? If yes, do I need to install an offline navigation application to the
phone?...............................................................................................................................................................................31
1.15.2 Does my phone support Google Maps?.................................................................................................................31
1.15.3 What navigation application does my phone come with?......................................................................................31
1.15.4 What can I do if the navigation application experiences data loss?.......................................................................31

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1.15.5 What can I do if the navigation application on my phone cannot receive signals from GPS satellites?................31
1.16 Does my phone support FM radio? If yes, how do I save my favorite channels?.....................................................31
1.17 Can I download themes to my phone? Does my phone support live wallpapers? ....................................................32
1.18 Does my phone support video calls or video chats? .................................................................................................32
1.19 How do I take a screenshot? .....................................................................................................................................32
1.20 Does my phone support flash playback? If no, can I install a third-party flash player for flash playback?..............32
1.21 Does my phone come with a headset? What line order does my phone support?.....................................................33
1.22 Preinstalled applications and versions ......................................................................................................................33
1.23 microSD card compatibility test ...............................................................................................................................33
1.24 Basic functions..........................................................................................................................................................33
1.25 Communication FAQs ..............................................................................................................................................33
2 Common settings.........................................................................................................................34
2.1 Email...........................................................................................................................................................................34
2.1.1 How do I configure email settings? .........................................................................................................................34
2.1.2 Can I view emails when no Internet connection is available on my phone?............................................................39
2.1.3 How do I log in to my Gmail account?....................................................................................................................39
2.1.4 How do I synchronize contacts and calendar events?..............................................................................................39
2.2 Wi-Fi settings..............................................................................................................................................................39
2.2.1 How do I connect my phone to a Wi-Fi network? ...................................................................................................39
2.2.2 What Wi-Fi protocols does my phone support?.......................................................................................................41
2.2.3 Sometimes I cannot open web pages over a Wi-Fi connection. Why? ....................................................................41
2.2.4 I have turned on Wi-Fi on my phone, but it cannot detect signals from Wi-Fi hotspots. What can I do?................41
2.2.5 How do I know whether my phone is using its mobile data connection or a Wi-Fi connection to access the Internet?
..........................................................................................................................................................................................42
2.2.6 I cannot connect to a Wi-Fi hotspot. Why?..............................................................................................................42
2.2.7 My phone's Wi-Fi connection automatically disconnects after the screen times out. What can I do?.....................42
2.3 Can I use my phone as a mobile Wi-Fi hotspot and access the Internet from another device using my phone's data
connection?.......................................................................................................................................................................42
2.4 How do I connect my phone to a Wi-Fi hotspot with a static IP address to access the Internet?................................44
2.5 How do I set my phone to work as a modem and provide Internet access for computers?.........................................45
2.6 Tone settings ...............................................................................................................................................................45
2.6.1 How do I set the phone ringtone? ............................................................................................................................45
2.6.2 How do I turn on or off vibration for incoming calls and messages? ......................................................................46
2.6.3 How do I set a custom audio file as the ringtone or notification tone?....................................................................46
2.6.4 Can I set a ringtone for a contact group? .................................................................................................................46
2.6.5 How do I disable touch sounds? ..............................................................................................................................46
2.7 Languages and keyboards...........................................................................................................................................46
2.7.1 How do I change the system language?...................................................................................................................46
2.7.2 What can I do if I can't use a newly installed text input method?............................................................................46
2.7.3 How do I change the system font size?....................................................................................................................47
2.7.4 Can I change the system font style? Does WeChat support font style changing?....................................................47
2.7.5 What text input methods does my phone come with?..............................................................................................47

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2.7.6 How do I switch to the stroke input method? ..........................................................................................................47
2.7.7 How do I disable key press vibration?.....................................................................................................................47
2.8 Internet access.............................................................................................................................................................47
2.8.1 How do I set a SIM card as the primary SIM card and the other as the secondary one? .........................................47
2.8.2 How do I clear my browser's cache and browsing history?.....................................................................................47
2.8.3 How do I view a web page in full screen or save a web page to bookmarks? .........................................................47
2.8.4 Can I log in to my email account using the browser on my phone? ........................................................................48
2.8.5 Can I log in to my online bank account from my phone?........................................................................................48
2.8.6 How do I save an image from a web page? .............................................................................................................48
2.8.7 How do I set the home page?...................................................................................................................................48
2.8.8 How do I save a web page? .....................................................................................................................................48
2.8.9 What can I do if my phone fails to access the Internet?...........................................................................................48
2.8.10 How do I turn on or off the mobile network? ........................................................................................................48
2.8.11 How do I view my phone's data service status or disable the data service?...........................................................49
2.8.12 Are there any restrictions on data services?...........................................................................................................49
2.8.13 How do I configure the VPN parameters? .............................................................................................................49
2.9 Screen lock .................................................................................................................................................................51
2.9.1 How do I set a screen unlock PIN?..........................................................................................................................51
2.9.2 How do I set the face unlock function?....................................................................................................................51
2.9.3 How do I set a screen unlock pattern? .....................................................................................................................52
2.9.4 How many times can I try the screen unlock pattern before my phone becomes permanently locked? Can I unlock
the phone by sending an email from my Gmail? ..............................................................................................................52
2.9.5 How do I lock and unlock the screen?.....................................................................................................................52
2.9.6 Why doesn't my phone screen turn off after I cover my palm on it? .......................................................................53
2.10 Alarm ........................................................................................................................................................................53
2.10.1 How do I add or remove an alarm?........................................................................................................................53
2.10.2 Will the alarms go off when my phone is powered off? ........................................................................................53
2.11 Applications ..............................................................................................................................................................53
2.11.1 What application formats does my phone support? Is JAVA supported? ...............................................................53
2.11.2 How do I download third-party applications?........................................................................................................54
2.11.3 Can I change the default installation location for applications?.............................................................................54
2.11.4 How do I install, manage, and uninstall applications?...........................................................................................54
2.11.5 What can I do if I can't install an application? .......................................................................................................55
2.11.6 Does my phone support photo shooting using remote control? If yes, how do I download and install the
application that supports such a function?........................................................................................................................56
2.11.7 Does my phone support AirSharing? If yes, how do I download and install the application that supports such a
function?...........................................................................................................................................................................56
2.12 Third-party applications............................................................................................................................................56
2.12.1 Does my phone support background QQ and QQ videos? Can I send images and download chat records? How
can I clear the chat records of a certain QQ account?.......................................................................................................56
2.12.2 Can I install third-party applications to a microSD card? If so, will running these third-party applications take up
my phone's storage?..........................................................................................................................................................57
2.12.3 Does my phone support online banking transactions?...........................................................................................57

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2.13 Backup and restoration .............................................................................................................................................57
2.13.1 How do I back up and restore contacts? ................................................................................................................57
2.13.2 Can I back up my contact groups?.........................................................................................................................58
2.13.3 What data can be backed up on my phone?...........................................................................................................58
2.13.4 What data can be restored on my phone?...............................................................................................................58
2.13.5 Does my phone support cloud services?................................................................................................................58
2.13.6 Does my phone support cloud backup and restoration?.........................................................................................58
2.14 Manage apps.............................................................................................................................................................58
2.14.1 What can Manage apps do? ...................................................................................................................................58
2.14.2 How do I access Manage apps? .............................................................................................................................58
2.14.3 What does the Manage apps screen look like?.......................................................................................................59
2.14.4 How do I manage a specific application using Manage apps?...............................................................................59
2.15 Does my phone come with Security Guard?.............................................................................................................60
2.16 Does my phone support the blacklist function of Security Guard?...........................................................................61
2.17 How do I configure the weather settings?.................................................................................................................61
2.18 What are the developer options?...............................................................................................................................61
2.19 Can I synchronize my phone's date and time with the network? ..............................................................................62
2.20 How do I use my phone as a USB flash drive?.........................................................................................................62
2.21 How do I free up internal storage space?..................................................................................................................62
2.22 How do I adjust the screen brightness?.....................................................................................................................62
2.23 Does my phone have key backlight? ........................................................................................................................62
2.24 How do I turn on or off airplane mode?....................................................................................................................63
2.25 How do I restore my phone to its factory settings?...................................................................................................63
2.26 How does my phone enter or exit safe mode? ..........................................................................................................63
2.27 Does my phone support HiSuite? .............................................................................................................................63
2.28 Does my phone support HDMI?...............................................................................................................................63
2.29 Does my phone support TV-out? ..............................................................................................................................63
2.30 Does my phone support OTG? .................................................................................................................................63
2.31 Is my phone provided with a status indicator?..........................................................................................................64
2.32 Can I use other power adapters than the provided one to charge my phone? ...........................................................64
2.33 What are the features of my phone?..........................................................................................................................64
3 Others ............................................................................................................................................65
3.1 Does my phone support the quick calling function when the screen is turned off?....................................................65
3.2 Does my phone support multi-screen interaction?......................................................................................................65
3.2.1 How do I enable multi-screen interaction? ..............................................................................................................65
3.2.1.1 How do I enable multi-screen interaction when Wi-Fi is turned off on my phone? ............................................. 65
3.2.1.2 How do I enable multi-screen interaction when Wi-Fi is turned on on my phone?.............................................. 67
3.2.2 How do I connect my phone to a multi-screen interaction device (DLNAdevice)?................................................67
3.2.2.1 How do I connect to a discovered device?............................................................................................................ 67
3.2.2.2 How do I connect to a device if no devices are discovered? ................................................................................ 68
3.2.3 How do I push media files to a DLNAdevice? .......................................................................................................69

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3.2.3.1 How do I push an image to a DLNA device? ....................................................................................................... 69
3.2.3.2 How do I push a video to a DLNA device? .......................................................................................................... 69
3.2.3.3 How do I push a song to a DLNA device?............................................................................................................ 69
3.2.4 How do I connect my phone to a multi-screen interaction device (Miracast device)? ............................................69
3.3 Does the phone support scheduled power-on and power-off? ....................................................................................70
3.4 Does the GPU support mainstream games?................................................................................................................70
3.5 How do I save battery power? ....................................................................................................................................70
3.6 How long does the battery stand if I keep using a certain function? ..........................................................................71
3.7 Can I use the USB cable and computer to charge my phone? ....................................................................................71
3.8 How do I reduce my mobile data usage?....................................................................................................................71
3.9 What can I do if my phone runs slowly? ....................................................................................................................71
3.10 Can I set my customized wallpaper not to stretch?...................................................................................................71
3.11 How do I enter recovery mode and restore my phone to its factory settings? ..........................................................72
3.12 Can I scan a QR code using my phone?....................................................................................................................72
3.13 Does my phone support 3D acceleration?.................................................................................................................72
3.14 How do I know whether my phone has been rooted? ...............................................................................................72
3.15 Can I remove the battery? Will configuring my phone to automatically set the date and time generate data traffic?
..........................................................................................................................................................................................73
3.16 Can I use my phone for recording?...........................................................................................................................73
3.17 Does my phone come with a protective film?...........................................................................................................73
3.18 Does my phone support mobile TV? ........................................................................................................................73
3.19 Can I browse or edit Word, Excel, PowerPoint, and PDF files on my phone? .........................................................73
3.20 What is the default installation location for applications? Can I change this location?............................................73
3.21 Does my phone support App2SD? How do I move an installed application to the microSD card? .........................74
3.22 How are my phone ROM and RAM allocated?........................................................................................................74
3.23 How do I check the available storage space in my phone storage and microSD card?.............................................75
3.24 My phone can stand by normally, but the screen cannot be turned on. What can I do?............................................76
3.25 Why isn't the backlight on?.......................................................................................................................................76
3.26 "Trial use" is found on my phone's network access license. Does this mean that my phone does not have the
national network access? ..................................................................................................................................................76
3.27 Why does my phone receive no signal after I activated the function of enabling only 4G data service? .................77
3.28 When I am playing music using the player that comes with my phone, my phone's signal status changes to no
service. What can I do?.....................................................................................................................................................77
3.29 My phone's speaker, receiver, and headset cannot function properly. What can I do? .............................................77
3.30 I can't use my phone's data service to access the Internet. What can I do?...............................................................77
3.31 My screen does not respond to touches when I am using the camera? What can I do?............................................77
3.32 The photos are blue or green if I take them with flash turned on? What can I do?...................................................77
3.33 After I insert and remove the headset, my phone's screen will freeze (cannot be unlocked when I swipe on the
screen or cannot be turned on when I press the power button) for 2 to 3 minutes until my phone detects the headset's
status. What can I do?.......................................................................................................................................................78
3.34 After I turn off 4G, my phone cannot send or receive multimedia messages or send or receive multimedia messages
slowly. What can I do?......................................................................................................................................................78

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3.35 After I inserted a 4G card into my phone, enabled data service, and took my phone from an area with no signal to
an area with strong signal, my phone's network connection falls from 4G to 3G and I can't make phone calls. What can I
do? ....................................................................................................................................................................................78

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1 Basics
1.1 Can I use 4G networks with my phone?
No. Your phone is a WCDMA 3G phone.
1.2 Color schemes
Phone colors: black, white, and gold
Standard version: black, white, and gold
External model
HUAWEI CHC-U01/U03/U23
CHM-U01
Version name
European dual SIM card version/Australian and Zelanian
version/Asia Pacific version/Latin American version/Latin
American dual SIM card version
Version classification
Standard
Phone color
Black/White/Gold
RAM/ROM
2 GB/8 GB
Single SIM card or Dual
SIM cards
Single SIM card for the CHC-U03 and dual SIM cards for
other models
1.3 Selling points
Huawei EMUI 3.0 (on Android 4.4)
5-inch HD touchscreen
1.2 GHz octa-core processor
5 MP front camera and 13 MP rear camera that supports autofocus and flash
2 GB RAM+8 GB ROM

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GPS and GLONASS
Bluetooth 4.0
The CHC-U03 supports single SIM card while other models support dual SIM card.
1.4 Your phone at a glance
Menu:
Touch to display an option menu.
Touch and hold to display the list of recently used applications.
Home:

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Touch to return to the home screen.
Return:
Touch to return to the previous screen or exit the current application.
When you are entering text, touch to hide the onscreen keyboard.
1.5 Installation
1.5.1 How do I open the battery cover?
Figure 1-1 Removing the battery cover of the CHC-U03

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1.5.2 How do I install a SIM/UIM card?
Figure 1-2 Installing a SIM/UIM card to the CHC-U03
Before you insert a micro-SIM card, power off the phone.
When you are inserting a micro-SIM card, make sure the gold contact and beveled edge are facing the
correct directions.

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1.5.3 How do I install a microSD card?
Figure 1-3 Installing a microSD card to the CHC-U03
1.5.4 How do I install the battery?
Your phone comes with a built-in battery, which is non-removable.

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1.5.5 How do I close the battery cover?
Figure 1-4 Closing the battery cover of the CHC-U03
1.6 Home screens
1.6.1 How do I add or delete a home screen?
To add or delete a home screen, pinch two fingers together on the home screen.

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You can have nine home screens at most.
Only blank home screens can be deleted.
1.6.2 How does my phone's main menu look like?
CHC:
Delete
Add

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CHM:

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1.6.3 How do I edit the main menu?
CHC:
CHM:

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1.6.4 How do I switch between 2D and 3D home screens?
Your phone does not support 3D home screens.
1.6.5 How do I add a shortcut for an application to a home screen?
On the home screen, touch and hold an empty spot. From the displayed four options at the
bottom, touch Widgets and drag a desired widget from the displayed list to the target screen.
Then touch the home button to return to the home screen.