TCL 20L+ User manual


1
Note:
This is a user manual for T775B.
There may be certain differences between the user manual description and the
phone’s operation, depending on the software release of your phone or specific
carrier services.
Help
Refer to the following resources to get more FAQ, software, and service information:
Consulting FAQ
Go to www.tclusa.com/service-support-mobile/faq.html
Finding your serial number or IMEI
You can find your serial number or International Mobile Equipment Identity (IMEI)
on the packaging materials. Alternatively, choose Settings >System >About
phone >Status >IMEI information on the phone itself.
Obtaining warranty service
First follow the advice in this guide or go to www.tcl.com/global/en/service-support-
mobile.html. Then check hotlines and repair center information through www.tcl.
com/global/en/service-support-mobile/hotline&service-center.html
Viewing legal information
On the phone, go to Settings >System >About phone >Legal information.

2
Table of Contents
1 Basics ............................................................................................................4
1.1 Device overview ....................................................................................4
1.2 Getting started.......................................................................................7
1.3 Home screen.........................................................................................9
1.4 Text input.............................................................................................15
2 Multimedia applications.............................................................................18
2.1 Camera................................................................................................18
2.2 Gallery.................................................................................................22
2.3 Music...................................................................................................25
3 Apps and features ......................................................................................26
3.1 Phone..................................................................................................26
3.2 Contacts ..............................................................................................31
3.3 Messages............................................................................................34
3.4 Calendar..............................................................................................37
3.5 Clock ...................................................................................................38
3.6 Calculator ............................................................................................41
3.7 TCL apps.............................................................................................42
3.8 Other applications ..............................................................................42
3.9 Google applications.............................................................................42
4 Settings........................................................................................................45
4.1 Wi-Fi....................................................................................................45
4.2 Bluetooth .............................................................................................46
4.3 SIM card & cellular network ................................................................47
4.4 Connected devices..............................................................................48

3
4.5 Home screen & lock screen................................................................51
4.6 Display.................................................................................................51
4.7 Sound & vibration................................................................................53
4.8 Notifications.........................................................................................53
4.9 Button & gestures ...............................................................................53
4.10 Advanced features ..............................................................................54
4.11 Smart Manager ...................................................................................55
4.12 Security & biometrics ..........................................................................55
4.13 Location...............................................................................................56
4.14 Privacy.................................................................................................56
4.15 Apps ....................................................................................................57
4.16 Storage................................................................................................57
4.17 TCL Account........................................................................................57
4.18 Accounts..............................................................................................57
4.19 Digital Wellbeing & parental controls ..................................................57
4.20 Google.................................................................................................57
4.21 Accessibility.........................................................................................58
4.22 System ................................................................................................58
5 FOTA upgrade .............................................................................................60
6 Troubleshooting..........................................................................................61
7 Specifications .............................................................................................66
8 Accessories.................................................................................................68
9 Licenses ......................................................................................................69

4
1 Basics
1.1 Device overview
Microphone
Receiver + speaker
USB Type-C
Headset connector
Front Camera
Back button
Home button
Touch screen
Recent apps
Speaker
Microphone

5
Fingerprint
sensor
Multiple rear cameras
LED flash
The Google
Assistant
Botton
SIM card
slot/microSD
card slot
NFC sensor area
Volume keys
Power key
The Google Assistant Button (left of the device)
• Press to access the Google Assistant
Back button
• Touch to go back to the previous screen, or to close a dialog box, options
menu, the notification panel, etc.
Home button
• From any application or screen, touch to return to the Home screen.
• Touch and hold to turn on Google Assistant. You can get help such
as getting directions and restaurant information based on the content
detected on the screen.

6
Recent apps
• Touch to view applications you’ve recently accessed.
Power key/Fingerprint sensor (right of the device)
• Press:
Lock the screen/Light up the screen.
In call mode, end a call when Settings > Button & gestures > Power
key > Power button ends call is On. Default is Off.
• Press and hold: Show the popup menu to select from Power off/Restart/
Airplane mode/Cast.
• Press the Power key and Volume down key at the same time to take a
screenshot.
• Press and hold the Power key for at least 10 seconds to force reboot.
• Touch to unlock the screen if you have set fingerprint to unlock your
screen.
Volume Keys
• In call mode, adjusts the earpiece or headset volume.
• In Music/Video/Streaming mode, adjusts the media volume.
• In general mode, adjusts the media volume.
• Mutes the ringtone of an incoming call.
• In camera preview mode, press the Volume up or Down key to take
a photo or press and hold to take burst shots. To set, touch Camera >
Settings > Volume button function.

7
1.2 Getting started
Setting up
Inserting or removing the SIM/microSD card
1Insert the provided SIM pin into the hole.
2Pull out the SIM tray.
3Place the SIM card or microSD card into the tray slot and carefully close the
SIM tray.
Micro
SD SIM
You must insert your SIM card to make phone calls. You do not need to power off
your phone before inserting or removing the SIM card as this phone supports hot
swap.
Your phone only supports nano-SIM cards. Do not attempt to insert other
SIM types; otherwise this may cause damage to your phone.
Charging the battery

8
You are advised to fully charge the battery ( ). Charging status is indicated by
a percentage displayed on screen while the phone is powered off. The percentage
increases as the phone is charged.
To reduce power consumption and energy waste when the battery is fully
charged, disconnect your charger from the plug; switch off Wi-Fi, GPS,
Bluetooth or background-running applications when not in use; reduce the
backlight time, etc.
Reverse Charging with an OTG Cable
On-The-Go (OTG) is a USB transmitting technology that allows a phone to connect
to an external device with the help of an OTG cable.
You can use your phone to charge other devices using an OTG cable.
1. Connect your phone with the device to be charged using an OTG cable.
2. After connecting, a reminder box will pop up indicating that your phone can charge
the other phone and that the battery will reduce quickly during the charging.
3. Swipe down from the status bar to open the notification panel; touch Charging
connected device via USB, and then check that Supply power is selected by
default.
Powering on your phone
Hold down the Power key until the phone powers on, unlock your phone (Swipe,
PIN, Password, Pattern, Fingerprint or Face recognition) if necessary and confirm.
The Home screen is displayed.
If you do not know your PIN code or forget it, contact your network carrier. Be sure
to keep your PIN code secure.
Powering off your phone
Press and hold the Power key until options appear, then select Power off.

9
1.3 Home screen
You can bring all the items (applications, shortcuts, folders and widgets) you love or
use most frequently to your Home screen for quick access. Touch the Home button
to switch to the Home screen.
Status bar
• Status/Notification indicators
• Touch and drag down to open the notification panel
Search bar
• Touch to enter text search screen
• Touch to enter voice search screen
Touch an icon to open an application, folder, etc.
Favorite tray applications
• Touch to enter the application.
• Touch and hold to move or remove applications.
The Home screen is provided in an extended format to allow more space for adding
applications, shortcuts etc. Slide the Home screen horizontally left and right to get
a complete view.
Using the touchscreen
Touch
To access an application, touch it with your finger.
Touch and hold
To enter the available options for an item, touch and hold the item. For example.
Select a contact in Contacts and touch and hold it. An options list will then appear.

10
Drag
Place your finger on the screen to drag an object to another location.
Slide/Swipe
Slide the screen to scroll up and down the applications, images, and web pages.
You can slide the screen horizontally too.
Flick
Similar to swiping, but flicking makes it move quicker.
Pinch/Spread
Place two fingers on the screen surface and draw them apart or together to scale
an element on the screen.
Rotate
Automatically change the screen orientation from portrait to landscape by turning
the phone sideways to have a better screen view.
Status bar
From the status bar, you can view both phone status (on the right side) and
notification information (on the left side).
Drag down the status bar to view notifications and drag again to enter the quick
settings panel.
Touch and drag up to close it. When there are notifications, they can be accessed
by touching them.
Notification panel
When there are notifications, touch and drag down the Status bar to open the
Notification panel to read more detailed information.

11
Touch to clear all event–based notifications
(other ongoing notifications will remain).
Touch to access Settings, where you can
set more items.
Quick settings panel
Touch and drag down from the top of the screen twice to open the Quick settings
panel.
You can enable or disable functions or change modes by touching the icons.
Touch the Edit icon to customize your Quick settings panel.
Touch to customize your
Quick settings panel.

12
Lock/Unlock your screen
To protect your phone and privacy, you can lock the screen with a pattern, PIN,
password, fingerprint or face.
To create a screen unlock, touch Settings > Security & biometrisc > Screen lock.
To lock the phone screen
• If your phone remains inactive for a period of time, it will automatically lock the
screen and enter sleep mode to save power. Go to Settings > Display > Sleep
and select a screen timeout period.
• You can also manually lock the screen by pressing the Power key once.
Swipe to unlock the screen
Press the Power key once to light up the screen, swipe up the screen to unlock
the screen. (1)
Swipe right to
enter Phone (1)
Double touch to enter
the detailed screen
Swipe left to
enter Camera (1)
Swipe up to
unlock the screen
Enter a password to unlock the screen
Once the screen is turned on, swipe up the screen to display the password input
panel. Then enter your lock screen password.
(1) Customized by touching Settings > Home screen & lock screen > Lock screen
shortcut.

13
Use pattern unlock
Draw the same pattern you have set to unlock the screen.
Use Face unlock
• From the app list, touch Settings >Security & biometrics > Face unlock.
Before using the face unlock, you need to set a pattern/PIN/password.
• Hold your phone 20-50 cm from your face. Position your face in the square
shown on the screen. For best results, we suggest that the face key is enrolled
indoors and away from direct sunlight.
• Enable Face unlock when your screen turns on, otherwise you will have to swipe
up on the screen first of all.
Use Fingerprint unlock
Touch the fingerprint sensor with an enrolled finger to unlock the screen.
Personalizing your Home screen
Add
You can touch and hold a folder, an application or a widget and drag the item to
your preferred Home screen.
Reposition
Touch and hold an item and drag it to the desired position and then release. You
can move items both on the Home screen and the Favorite tray. Hold the icon on
the left or right edge of the screen to drag the item to another Home screen.
Remove
Touch and hold the item and drag it up to the top of the remove icon, and
release after it turns red.
Create folders
To improve the organization of shortcuts or applications on the Home screen and
the Favorite tray, you can add them to a folder by stacking one item on top of
another. To rename a folder, open it and touch the folder’s title bar to input the new
name.

14
Wallpaper customization
Touch and hold an empty area on the Home screen, then touch Wallpapers to
customize wallpaper.
Widgets and recently used applications
Consult widgets
Touch and hold the empty area in the Home screen, then touch Widgets to display
all widgets.
Touch and hold the selected widget and slide it to move to your preferred screen.
Consult recently used applications
To consult recently used applications:
• Touch the Recent apps key.
• If Settings > Button & gestures > System navigation > Gesture navigation
is set, swipe up from the bottom of the screen and hold for at least 0.3s.
Touch a thumbnail in the window to open the application.
Touch one thumbnail and slide it up to close the application, slide it right/left to
switch between the applications.
Touch CLEAR ALL at the bottom of the screen to close all the running applications.

15
Volume adjustment
Press the Volume key to adjust the Media volume.
Touch the icon to adjust Ring, Alarm and Notification volume.
1.4 Text input
Using the Onscreen Keyboard
Onscreen Keyboard settings
Touch Settings > System > Language & input, touch the Virtual keyboard you
want to set up and a series of settings will become available.
Adjust the Onscreen Keyboard orientation
Turn the phone sideways or upright to adjust the onscreen keyboard orientation.
You can adjust it by changing the settings (Touch on/off Settings > Display >
Auto-rotate screen).

16
Android keyboard
1
2
3
4
5
6
7
1Enter recipient numbers or select from contacts
2Touch to send the SMS or MMS message
3Touch and hold to switch language
4Touch to input a full stop
Touch and hold to select symbols
5Touch to switch between "abc/Abc" mode
Touch and hold to switch to "abc/ABC" mode
6Touch to access the symbols and numbers keyboards
7Touch to input a comma
Touch and hold to access keyboard settings, input an emoticon, and enter
left or right hand input mode.

17
Text editing
You can edit text which you have entered.
• Touch and hold or double touch within the text you want to edit.
• Drag the tabs to change the amount of text to edit.
• The following options will appear: Cut, Copy, and Share.
You can also insert new texts if preferred
• Touch where you want to type, or touch and hold a blank area. The cursor will
blink and the tab will appear. Drag the tab to move the cursor.
• If you have cut or copied any text, touch the tab to show the Paste and Select
all option which allows you to complete pasting immediately.

18
2 Multimedia applications
2.1 Camera ...........................................................
Before using the camera, make sure that you remove the protective lens cover to
avoid it affecting your picture quality.
Launch Camera
There are multiple ways to open the Camera app.
From the Home Screen
From the home screen, touch Camera .
From the Lock Screen
When the screen is locked, press the Power key once to light up the screen, then
swipe left on the camera icon in the lower right corner to open the camera.
1
2
3
4
5
6
7
8
9
10
11

19
1Select filters
2Flash mode: Touch to turn on/off the camera flash
WARNING: Keep a safe distance when using the flash. Do not point the flash
toward people’s or animals’ eyes.
3Take a timed photo
4Take HDR photos
5Zoom in/out
6Switch between front/back camera
7Take a photo
8Touch to access settings
9Picture size
10
Pinch fingers together to zoom out, or spread fingers apart to zoom in
11
View the photos or videos you have taken
To take a photo
The screen acts as the viewfinder. First, position the object or landscape in the
viewfinder, touch the screen to focus if necessary. Touch to capture. The photo
will be automatically saved. You can also touch and hold to take burst shots,
the maximum number is 20.
To take a video
Touch VIDEO to change the camera mode to video.
Touch to start video recording. Touch the left part of this icon to take a
picture during video recording.
Touch the right part of this icon to pause video recording and touch to
continue. Touch to stop recording. The video will be automatically saved.
Further operations when viewing a photo/video you have taken
• Slide left or right to view the photos or videos you have taken.
• Touch , then Gmail/Bluetooth/MMS/etc. to share the photo or video.
• Touch Back button to return to Camera.
Other manuals for 20L+
1
This manual suits for next models
1
Table of contents
Other TCL Cell Phone manuals