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- Owner's manual - (English)
- Getting Started
- About Your Phone
- Personalize Your Phone
- Application
- Gmail
- Google Applications
- Security
- User & Accounts
- Troubleshooting
Table of contents
User Manual
Getting Started
Overview
Recent Apps button 
- Touch to open a card view of applications you've worked with recently.
- Swipe up on the screen to remove a specific thumbnail from the list, or touch CLEAR ALL to remove all thumbnails from the list.
Home button 
- From any application or screen, touch to return to the Home screen.
- Touch and hold to open Google Assistant. Through this function, you can search for information online, open apps on your phone, send messages, etc.
Back button 
- Touch to go back to the previous screen, or close a dialog box, options menu, the Notification panel, etc.
Power key 
- Press: Lock the screen/Light up the screen.
- Press and hold: Show the popup menu to select from Power off, Restart or Screenshot.
- Press and hold the Power key and Volume down key to take a screenshot and save it.
- Press and hold the Power key for at least 10 seconds to force reboot.
Volume Keys 
- Adjust the call volume during a phone call.
- Adjust the media volume while listening to music, watching a video, or streaming content.
- Adjust the ringtone volume.
- Mutes the ringtone of an incoming call.
- While using the Camera, press the Volume up or down key to take a photo, or touch and hold to take several photos.
Setup
Inserting Nano SIM card
You must insert your Nano SIM card to make phone calls using your network.
TIP: Your phone only supports Nano SIM cards. In order to avoid damaging your phone, do not attempt to insert other SIM types, such as Mini or Micro cards.
Note: Even if no SIM card is installed, your phone will still power on and you will be able to connect to a Wi-Fi network and use some of the phone's features.
Setup your phone for the first time
The first time you power on the phone, you should set the following options:
- Touch
to select the phone's language, then touch 
. - Select an available Wi-Fi network, then touch Next, otherwise touch Skip and CONTINUE
- Copy your apps & data from another device or touch Don't copy to continue.
- Set PIN for a screen lock, otherwise touch Skip to continue.
- Set up Face key to unlock screen by touching Add face data, otherwise touch Skip.
- Touch SETUP TIME and then Set install time to update your device to the latest version, at a set time, whenever a system update is available.
Home Screen
You can bring all of the items that you use most frequently (applications, shortcuts, widgets, folders) to your Home screen for quick access. Touch the Home button to switch to the Home screen.
Status Bar
The Status bar appears at the top of your Home screen. Icons indicating your phone's status and new notification alerts appear in the Status bar.
About Your Phone
Power On/Off
Hold down the Power key until the phone powers on, unlock your phone (Swipe, Pattern, PIN, Password or Fingerprint) if necessary, once unlocked, Home screen is displayed.
If you don't know your PIN code or if you have forgotten it, contact Customer Care. For Safety, please do not store PIN code in your phone.
Press and hold the Power key until options appear, then select Power off.
Charging
Insert the small end of the charging cable into the charge port and plug the charger into an electrical outlet.
Battery
To optimize your battery life, you may do the following:
Turn on power saving mode
- Go to Settings > Smart Manager > Battery > Battery detail > Battery saver
- Touch TURN ON NOW to activate the battery saving mode.
Lower screen brightness
- Go to Settings > Display > Brightness level
- Lower the brightness by sliding
to the left.
Screen timeout
- Go to Settings > Display > Sleep
- Select the screen timeout duration.
Personalize Your Phone
Language
Your device supports multiple languages. To change your phone language:
- Go to Settings > System > Languages & input > Languages.
- Touch + Add a language to select a language from the language list.
- Touch and hold
next to your desired language and drag it to the top of the list.
Date & Time
Go to Settings > System > Date & time.
Use network-provided time
Turn on 
to enable the network-provided time.
Use network-provided time zone
Turn on to enable the network-provided time zone.
If Use network-provided time is turned off, you will have the following two options to manually set the date and time:
- Set date
Touch to open a dialog in which you can manually set the date.
- Set time
Touch to open a dialog in which you can manually set the time.
If Use network-provided time zone is turned off, you will have the following option to manually set the time zone:
- Time zone
You can select the time zone and region manually.
- Time format
You can also set the time format as locale default or 24-hour format.
Display
Dark mode
Your screen will become black in this mode, which makes it easier to look at your screen or read in dim light.
Font size
Make the text on screen smaller or lager.
Auto-rotate screen
Select whether the screen rotates automatically or not.
Note: Using your device in landscape mode with polarized sunglasses on may cut light from the screen. Take your polarized sunglasses off or use your device in portrait orientation to continue use.
In Display, you can also set Status bar, LED indicator and More display settings.
Sound
Use the Sound settings to configure many aspects of call ringtones, music, and other audio settings.
Phone ringtone & vibrate
Set your incoming call ringtone or opt for the phone to vibrate only.
Notification ringtone
Set the default sound for notifications.
Alarm ringtone
Set your alarm ringtone.
Do Not Disturb preferences
If you do not want to be disturbed by your phone or notification ringtones during work or rest, you can set the Do Not Disturb mode.
Swipe down the Status bar twice to access the Quick Settings panel and tap to turn on Do Not Disturb.
Adjusting other sounds
All other sounds that are related to Dial Pad, Screen locking and Charging can be adjusted to by doing the following:
- Go to Settings > Sound > Advanced > Other Sounds and vibrates.
Digital Wellbeing & Parental Controls
Use this menu to find out how much time you have spent on the phone and even on each app. You can customize the time limit for using the phone.
In addition, parents can restrict their children's usage time and manage their browsing habits.
Application
Call
Making a call
To make a call, touch 
Suggested numbers are displayed as you enter numbers on the dial pad.
Enter the desired number from the dial pad and touch to place the call. You can also select a contact from Favorites 
, Recents
or Contacts 
by touching the tabs.
The number you entered can be saved to Contacts by touching Create new contact.
If you make a mistake, you can delete the incorrect digits by touching 
.
To hang up a call, touch 
.
International call
To make an international call, touch and hold 
to enter “+”, then enter the international country prefix followed by the full phone number and touch .
Emergency call
If your phone has network coverage, dial the emergency number and touch to make an emergency call. This works even without a SIM card and without typing the PIN code.
Answering or rejecting a call
When you receive a call:
- Slide
up to answer; - Slide down to reject;
- Touch
to reject the call by sending a preset message.
To mute the ringtone of an incoming call, press the Volume key.
Voicemail
Your voicemail is provided to avoid missing calls. It works like an answering machine that you can consult at any time.
To access your voicemail, touch and hold .
To set your voicemail number: touch Phone and go to menu 
> Settings > Voicemail > Advanced Settings > Setup > Voicemail number.
If you receive a voicemail, 
appears in the Status bar. Open the Notification panel and touch Voicemail.
Contacts 
Contacts enables quick and easy access to the contact you want to reach.
You can view and create contacts on your phone and synchronize them with your Gmail contacts or other applications on the web or on your phone.
Adding a contact
Touch 
in the contact list to create a new contact.
Enter the contact's name and other contact information. By scrolling the screen up and down, you can move from one field to another
When finished, touch SAVE to save.
To exit without saving, you can touch 
and then touch DISCARD.
Editing your contacts
Touch 
in the contact details screen to edit. When finished, touch SAVE to save.
Add to/remove from Favorites(1)
Touch a contact to view details then touch 
to add the contact to favorites.
Touch the star 
to remove a contact from favorites.
Deleting a contact
From the contact list screen:
- Touch and hold the contact you want to delete, then touch
and confirm to delete. - Mark the checkbox of all contacts, then touch
and confirm to delete all contacts.
From the contact details screen:
Touch then select Delete. Select DELETE when prompted to confirm.
TIP: The contact you have deleted will also be removed from other applications on the phone or web the next time you synchronize your phone.
Sharing a contact
You can share a single contact with others by sending the contact's vCard to them via Email, Messages, and Bluetooth. Select a contact you want to share, touch and then select Share.
Available options
From the contact list, you may also make further settings by touching 
.
Settings
- My info Touch to set up your profile
- Accounts Touch to add account and configure related info.
- Default account for new contacts: Touch to choose the default place to save a new contact.
- Sort by Touch to sort the list by the first name or last name.
- Name format Touch to choose whether to display first name first, or last name first.
- Phonetic name Touch to choose display or hide phonetic name.
- Import/Export Import or export contacts between phone, SIM card, microSD card and phone storage, etc.
- Block numbers Add numbers here so that you won't receive the calls or texts from them.
- About Contacts Touch to view the build version, open source licenses and so on.
Messages
Creating a message
On the Messaging list screen, touch 
to write text/multimedia messages.
Sending a text message
- Enter the name or the phone number of the recipient in the To bar or touch
to add recipients. - Touch the Add text bar to enter the text of the message.
- Touch
to insert emoticons. - When finished, touch
to send the text message.
TIP: Specific letters (accented) will also increase the size of the SMS, this may cause multiple SMS to be sent to your recipient.
Gmail
Setting up Gmail
To set up your email account, swipe up from the Home screen, then select Gmail 
Select to add an email address.
An email setup process will guide you through the steps to set up an email account.
- Select the type of email account that you have and enter the email address and password of the account you want to set up.
- If the account you entered is not provided by your service provider in the device, touch Other and then MANUAL SETUP after entering the email address, select an account type and enter password of your email, then correctly fill in server and port in both Incoming server settings and Outgoing server settings interfaces. Finally, touch FINISH to complete setup.
- To add another email account, you can touch on the upper left corner, select Settings, and then touch Add account. Or you can touch the account name on the upper right corner and select Add another account to implement this function.
Sending an email
- Touch
from the Inbox screen. - Enter recipient(s) email address(es) in the To field.
- If necessary, touch > Cc/Bcc to add a copy or a blind carbon copy to the message.
- Enter the subject and the content of the message.
- Touch
to add an attachment. - If you do not want to send the mail right away, you can touch and Save draft or touch the Back key to save a copy.
- Touch to send.
If you do not want to send or save the email, you can touch and then select Discard.
To add a signature that will appear on all of your emails, touch and select Settings, then choose the account that you want to create or modify the signature, touch Mobile Signature to edit.
Note: If you are seeing a “password incorrect” error when setting up your Gmail Account in the Gmail app, please review the following options:
Option 1: Generate an App password
An App password is a 16-digit passcode that gives an app or device permission to access your Google Account. If you use 2-Step-Verification and are seeing a password incorrect” error when trying to access your Google Account, an App password may solve the problem.
Steps to generate an App password:
- Visit your App passwords page web myaccount.google You may be asked to sign in to your Google Account.
- At the bottom, click Select app and choose the app you’re using.
- Click Select device and choose the device you’re using.
- Select Generate.
- Follow the instructions to enter the App password (the 16-character code in the yellow bar) on your device.
- Select Done.
- Once you are finished, you won’t see that App password code again. However, you will see a list of apps and devices you’ve created App passwords for.
If generate an app password does not fix the “Password incorrect” issue, please proceed to Option 2 or Option 3.
Option 2: Change your settings to allow less secure apps
- Go to the "Less secure apps" web google in My Account.
- Next to "Access for less secure apps," select Turn on.
- You can now setup your email using your username and password. If you continue to see a “password incorrect” error, please proceed to Option 3.
Option 3: Access Gmail through browser
If you don’t want to change your security settings, please follow these steps to access your Gmail:
- From the home page, press the OK button and press on the Browser.
- Enter your username and password to log
Chrome
Using the Chrome browser, you can enjoy surfing the Web.
To access this function, touch Chrome 
from the Home screen.
Calendar
You can use Calendar to keep track of important meetings, appointments, etc.
To access the function, swipe up from the Home screen, then touch Calendar.
Viewing calendars
and select your desired calendar view.
Creating a new event
You can add new events from any Calendar view.
- Touch
. - Fill in all required information for this new event. If it is a whole-day event, you can turn on
next to All-day. - Invite guests to the event. Enter the email addresses of the guests you want to invite with commas to separate. The guests will receive an invitation from Calendar and Email.
- When finished, touch Save from the top of the screen.
To quickly create an event from the Day, 3 Day, or Week views, touch an empty spot to select a target area which will then turn into 
, and touch the icon to create the new event.
Deleting or editing an event
- To delete or edit an event, touch the event to enter its details screen, touch
to edit the event. - Touch and Delete to remove the event.
Event reminder
If a reminder is set for an event, the upcoming event icon
will appear in the Status bar as a notification when the reminder time arrives.
- Touch and drag down the Status bar to open the Notification panel.
- Touch an event name to view the Calendar notification list.
Camera
Accessing the camera
From the Home screen, touch Camera. If the phone is locked, double-press the Power key to open the camera.
Taking a picture
- Position the object or landscape in the viewfinder, touch the screen to focus if necessary
- Touch
to take the picture which will be automatically saved. - To take burst shots, touch and hold or the Volume key.
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- Touch to select a filter
- Touch to select flash mode or turn camera flash on/off
- Touch to set countdown seconds
- Touch to turn HDR on/off
- Touch to access more options
- Switch between front/back camera
- Touch to take a photo
- Touch to view photos or videos you have taken
Making a video
- Touch VIDEO to enter the Video mode.
- Touch
in the center of the screen to start video recording. - You can also touch
to take a picture during video recording. - Touch to stop recording. The video will be automatically saved.
Gallery
Photos acts as a media player for you to view photos and play videos. Pictures and videos are displayed by moments and albums in Gallery.
- Touch the picture/video directly to view or play.
- Slide left/right to view previous or next pictures/videos.
Working with photos
You can work with pictures by rotating or cropping them, sharing them with friends, setting them as a contact photo or wallpaper, etc.
- Locate the picture you want to work on and touch the picture in the full-screen picture view.
- Touch
to share the picture, or touch
to delete the picture. Touch and select Use as to set the picture as Contact photo or Wallpaper.
Google Applications
Google apps are preinstalled on your phone to improve work efficiency and help you enjoy life.
This manual briefly introduces the apps. For detailed features and user guides, refer to related websites or the introduction provided in the apps.
You are recommended to register with a Google Account to enjoy full functionality.
Google
Your bookmarks, browsing history, and settings across all devices on which the browser is installed can be synchronized with your Google Account.
Gmail
As Google's web-based email service, Gmail is configured when you first set up your phone. With this application, you can send and receive emails, manage emails by labels, archive them, etc. Emails can be automatically synchronized with your Gmail account.
Maps
Google Maps offers satellite imagery, street maps, 360° panoramic views of streets, real-time traffic conditions, and route planning for travelling by foot, car, or public transportation. By using this application, you can find your own location, search for a place, and get suggested route planning for your trips.
YouTube
YouTube is an online video-sharing application where users can upload, view, and share videos. Available content includes video clips, TV clips, music videos, and other content such as video blogging, short original videos, and educational videos. It supports a streaming function that allows you to start watching videos almost as soon as they begin downloading from the internet.
Drive
A file storage and synchronization service created by Google, which allows users to store files in the cloud, share and edit files. Files in Drive are kept secure and can be accessed from any device by logging in to your Google Account. Files or folders can be shared privately with other Google Account users.
Play Movies & TV
Google Play Movies & TV allows you to watch movies and TV shows purchased or rented on Google Play.
Play Store
Serves as the official app store for the Android operating system, allowing users to browse and download applications and games. Applications are either free of charge or at a cost.
In Play Store, search for the app you need, download it and then follow the installation guide to install the app. You can also uninstall, update an app, and manage your downloads.
Duo
This is a video chat mobile app that allows users to make video calls to people in their contact list once their phone numbers are verified.
Photos
Google Photos stores and backs up your photos and videos. It also automatically analyzes photos and organizes them into groups, so that you can quickly find the photos you need.
Notes
You can insert images, lists, and make voice recordings in your notes. You can also set time or location-based reminders for notes. Google Keep allows you to categorize notes by labels, and notes are searchable based on their color, whether they have reminders, audio, images, or lists.
Files
Files displays all data stored on the phone, including both external SD card and internal storage, such as applications, media files downloaded from Google Play Store, YouTube or other locations; Videos, pictures or audios you have captured; other data transferred via Bluetooth, USB cable, etc.
Security
Screen Lock
From the Home screen, touch Settings > Security & biometrics > Screen lock
Screen lock allows you to set a screen lock option to secure your phone from being used by others without your permission, activate the following security options: Pattern, PIN, Password or Fingerprint. Whoever turns on your phone will be required to unlock the screen in order to access your device. Your device can be unlocked by anyone if you select None or Swipe.
Fingerprint
Use your Fingerprint to unlock the screen or take a photo/video.
Access Settings > Security & biometrics > Fingerprint to activate these functions.
Face Unlock
Face unlock allows you to unlock your device with your facial data. Set it according to the on-screen steps.
Ensure that you are facing the phone screen when using face recognition.
NOTE: you need to set a pattern, PIN, or password before using Face unlock.
Smart Lock
Smart Lock keeps your device unlocked when it's safe with you and locked when it detects that it's been put down.
Remote Lock
If your phone is lost, you can lock the phone remotely by sending a text message.
Apps Lock
Apps lock can effectively protect your privacy by locking some apps with a pattern or fingerprint. Go to Settings > Security & biometrics > Apps lock to set the lock format, lock time and choose the apps you want to lock.
Encryption & Credentials
Touch to view your device encryption status and the credentials items. You can modify and clear all of the stored credentials.
Screen Pinning
When this setting is turned on, you can use screen pinning to keep the current screen in view until you unpin.
User & Accounts
Users
Share your phone by adding new users. Each user has a personal space on your phone for custom Home screens, accounts, apps, settings. and more.
Touch Add user or profile to add an account for the selected app.
Emergency Information
Edit medical information and emergency contacts.
Automatically Sync Data
Let apps refresh data automatically.
Troubleshooting
Before contacting the service center, you are advised to follow the instructions below:
- To have optimal operation, fully charge the battery.
- To improve the phone’s performance, remove unnecessary files or apps on your phone.
- To update your system software, use the System update command in your phone’s settings.
- To set your phone to factory default, use the Reset options in the phone’s settings. All your phone data will be lost permanently. It is strongly advised to fully back up your phone before resetting.
My phone can't be switched on
- If the phone can't be switched on, charge for at least 10 minutes to ensure the minimum battery power needed. Then switch it on again.
My phone has not responded for several minutes
- If your phone doesn’t respond, turn off your phone by pressing and holding the Power key until it turns off and then restart it again.
My phone turns off by itself
- If your phone turns off by itself, make sure that the Power key is not accidentally pressed.
- Check the battery charge level.
- If it still doesn't work, Factory reset the phone via the Reset options in the phone’s Settings. Make sure you have backed up your data.
My phone can't charge properly
- Make sure that you are using the proper charger that comes with the phone.
- Make sure that your battery is not completely discharged; if the battery power has been discharged for a long time, it may take around 10 minutes to display the battery charging indicator on the screen.
- Make sure that charging is carried out under normal conditions (0°C (32°F) to 55°C (131°F))
- When abroad, check that the voltage input is compatible.
- Check that the charging port is secured or it’s not damaged.
My phone can't connect to a network or "No service" is displayed
- Try connecting to the network by moving to another physical location.
- Verify the network coverage in your current area.
- Check that your SIM card is valid.
- Make sure your phone’s setting is not in airplane mode.
- If you are away from your T-Mobile network, you may need to enable roaming in the phone’s settings to connect to another network. Roaming charges may apply.
My phone can't connect to the internet
- Make sure that Cellular Data internet service is available in your wireless service plan.
- Check your phone's settings. Make sure Cellular Data is enabled or Wi-Fi connected.
- Make sure that you are in a place with network coverage for cellular data or
- Wi-Fi internet connection.
- Try connecting at a later time or from another location.
Invalid SIM card
- Make sure that the SIM card has been correctly inserted (see "Inserting Nano SIM card").
- Make sure that the chip on your SIM card is not damaged.
- Make sure that the service of your SIM card matches the network you’re on.
My phone can't make outgoing calls
- Make sure that you have dialed a valid number and have touched Call on your phone.
- For international calls, check the country and area codes.
- Make sure that your phone is connected to a network, and the network is not overloaded or unavailable.
- Check your subscription status.
- Make sure that you have not barred outgoing calls.
- Make sure that your phone is not in airplane mode.
My phone can't receive incoming calls
- Make sure that your phone is switched on and connected to a network.
- Check for overloaded or unavailable network.
- Check your subscription status.
- Make sure that you have not forwarded incoming calls.
- Make sure that you have not barred certain calls.
- Make sure that your phone is not in airplane mode.
The caller’s name/number doesn't appear when a call is received
- If the caller is not in your contact list, you have the option to subscribe to NameID
- Your caller may have concealed his name or number.
I can't find my contacts
- Make sure that your SIM card is not broken.
- Make sure that your SIM card is inserted properly.
- Import all contacts stored in SIM card to phone.
The sound quality of the calls is poor
- Adjust the volume during a call by pressing the Volume key.
- Check the network strength. Move to a location with stronger signal strength.
- Make sure that the receiver, connector or speaker on your phone is clean.
I can't use the features described in the manual
- Check to make sure that your subscription includes this service.
- Make sure that this feature doesn't require any additional accessory.
When I select a number from my contacts, the number can't be dialed
- Make sure that you have correctly recorded the number in your file.
- Make sure that you have selected the country code when calling an international number.
I can't add a contact
- Make sure that your SIM card contact list are not full; delete some files or save the files to the phone.
My callers can't leave messages on my voicemail
- Contact your network carrier to check service availability.
- Set up your voicemail, so that your caller can leave a message.
I can't access my voicemail
- Make sure that T-Mobile's voicemail number is correctly entered in "Voicemail number".
- Try later if the network is busy.
I can't send and receive MMS
- Check your phone storage as it might be full.
- Contact customer care to check service availability and MMS parameters.
- Verify the server center number or your MMS profile with customer care.
- The server center may be swamped. Try again later.
- Start a new Messaging string. Your messaging string may have reached its limit.
SIM card PIN locked
- Contact customer care to obtain the PUK (Personal Unblocking Key) code.
I can't connect my phone to my computer
- Install Smart Suite.
- Check that your USB driver is installed properly.
- Open the Notification panel to check if the Smart Suite Agent has been activated.
- Check that you have marked the USB debugging checkbox.
- Check that your computer meets the requirements for Smart Suite installation.
- Make sure that you’re using the right cable from the box.
I can't download new files
- Make sure that there is enough phone storage space for your download.
- Select the microSD card as the location to store downloaded files.
- Check your subscription status.
The phone can't be detected by others via Bluetooth
- Make sure that Bluetooth is turned on and your phone is visible to other users.
- Make sure that the two devices are within Bluetooth’s detection range.
The battery drains too fast
- Make sure that you follow the complete charge time (minimum 2.3 hours).
- After a partial charge, the battery level indicator may not be exact.
- Wait for at least 10 minutes after removing the charger to obtain an exact indication.
- Adjust the brightness of screen as appropriate.
- Extend the email auto-check interval for as long as possible.
- Update news and weather information manually or increase their auto-check interval.
- Exit background-running applications if they are not being used for extended periods of time.
- Deactivate Bluetooth, Wi-Fi, or GPS when not in use.
The phone becomes warm following prolonged calls, game playing, internet surfing or running other complex applications
- This heating is a normal consequence of the CPU handling excessive data. Ending the above actions will make your phone return to normal temperature.
After Factory data reset is performed, I can't use my phone without entering Google Account credentials
- After reset is performed, you must enter the original Google Account credentials that were used on this phone.
- If you don’t remember your Google Account credentials, complete Google Account recovery procedures.
The phone doesn't ring when a call or message arrives
- Make sure that Do Not Disturb mode (go to Settings > Sound > Do Not Disturb) is not activated.
- Press the Volume key to adjust volume.
See other models: A1C14W A514B A315B A214W A214B
