: Ensure your TV is connected to a stable internet connection.
: If an update is found, the TV will prompt you to download and install it. The TV may restart several times during this process. Method 2: Manual USB Software Update
: Press the Menu button on your remote control and select Setup . System Menu : Scroll down to the System Menu and select it.
If your TV cannot connect to the internet or the automatic search fails, you can manually download the firmware from the official Panasonic Digital AV Support portal. Download Information of TV | TV | Digital AV | Support