1. Turn on the TV and set-top box and enter the main interface of set-top box.
2. Use the set-top box remote control to find the system setting options and press Enter to enter.
3. Find the system update after entering and press Enter to enter.
4. After entering, select Check Update, press Enter to start networking, and check whether there is an upgrade package available on the set-top box. If so, the user will be prompted whether to download. If so, you can start downloading.
5. After the download is completed, the system will prompt the user whether it is necessary to upgrade immediately. If so, press Enter to start the upgrade.
6. After the upgrade is completed, the set-top box will automatically restart. After restarting, you can enter the new version of the system and start to use it normally.