TCL 20S User Manual

Reading the TCL 20S user manual will help you to take your phone’s performance multiple steps higher. Find out where to download it here!

TCL 20S User Manual

TCL 20S user‌ ‌manual‌ is the document users should look up during unboxing and first-time setup. There’s a chance you could stumble into features you’re not familiar with. There isn’t a better guide than a phone’s official manual. With a manual, you don’t have to Google especially for basic settings.

This user manual from TCL is not a scary technical document. It’s straightforward and simple. It’s easy for users to find the topic they’d like to read.

Many of the tutorials inside come with pictures and illustrations. So it’s even easier to digest. Topics are separated into several sections as follows.

This is a user manual for TCL 20S (T773O).

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.

Apps and Features


To make a call, touch Phone icon in the Favorites tray.

Making a call

Enter the desired number from the dial pad and touch Phone icon to place the call or select a contact from Contacts or Call logs by sliding or touching tabs, then make the call.

The number you entered can be saved to Contacts by touching Create new contact or Add to a contact.

International call

To dial an international call, touch and hold “0” to enter “+”, then enter the international country prefix followed by the full phone number and touch Phone icon.

Emergency call

If your phone has network coverage, dial the emergency number and touch Phone icon to make an emergency call. Depending on your network and country this could even work without a SIM card and without typing in the SIM PIN code.

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.

Read also: TCL 30 V 5G User Manual


Contacts enables quick and easy access to the contact you want to reach.

You can view and create contacts on your phone and synchronize these with your Gmail contacts or other applications on the web or on your phone.

Deleted contacts will also be removed from other applications on the phone or web the next time you synchronize your phone.


You can create, edit, send and receive SMS and MMS with this phone.

To access Messages, touch Messages icon from the App drawer.

On the message list screen, touch “Start Chat” to write text/multimedia messages.


Use Calendar to keep track of important meetings, appointments, etc.

To view the calendar and create events, open the Google apps folder from the Home screen, then touch Calendar.


To go to Settings, swipe up from the Home screen or swipe left and then tap Settings app.

You can also swipe down from the notification panel and touch Settings icon.


You can connect to the internet when your phone is within range of a wireless network. Wi-Fi can be used on your phone even without a SIM card inserted.

To turn Wi-Fi on and connect to a wireless network:

  • Touch Settings > Wi-Fi.
  • Turn on Wi-Fi.
  • Once Wi-Fi is turned on, detected Wi-Fi networks are listed.
  • Touch a Wi-Fi network to connect to it. If the network you selected is secured, you are required to enter a password or other credentials (you should contact the network carrier for details). When finished, touch CONNECT.

Read also: Sonim XP3plus User Manual


Bluetooth is a short-range wireless communication technology that you can use to exchange data, or connect to other Bluetooth devices for various uses.

To turn on Bluetooth:

  • Touch Settings > Bluetooth.
  • Turn on Bluetooth.
  • Your device name will appear on screen.

Super Bluetooth

Once two or more BT devices are connected, Super Bluetooth will be enabling you to adjust the volume and audio balance of each BT device, and calibrate a connected speaker to better synchronize sound with the video on your smartphone.

To get a better listening experience, we suggest that your device connects with up to four audio devices simultaneously.

A calibration reminder will pop up every time a connected Bluetooth speaker changes. A third or fourth Bluetooth device can only be added if you are connected to a 5GHz Wi-Fi network.

SIM card & cellular network

Cellular network

You can set Data roaming, Preferred network type, VoLTE, Network and Access Point Names etc. in this menu.

Data usage

The first time you turn on your phone with your SIM card inserted, it will automatically configure your network service: 2G, 3G, 4G or 5G.

Data saver

By enabling Data saver, you can reduce data usage by preventing some apps from sending or receiving data in the background.

Cellular data

If the network is not connected, you can turn on Cellular data.

If you do not need to transmit data on cellular networks, turn off Cellular data to avoid incurring significant charges for data use on local carrier cellular networks, particularly if you do not have a cellular data agreement.

Data usage is measured by your phone, and your carrier may count differently.

Download User Manual

That’s the general summary of the TCL 20S user manual. Other than that, the manual still has some surprises left. So, make sure to read this manual. Hopefully it can help you enjoy your phone better.

Download: TCL 20S User Manual (PDF)

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