1, turn on the set-top box and TV switch, and wait for the set-top box to start.

2. After the set-top box is started, press the menu key of the set-top box remote control.

3. Enter the main menu, use the direction keys of the remote controller to find the system settings, and click the "OK" button of the remote controller to enter.

4. In the system settings, through the arrow keys, find the DisplayOSD, and then click OK.

5. Select OSDLanguage and change the option to Chinese.

6. After the changes are completed, press OK to save and exit.