Official Panasonic firmware is generally distributed as or self-extracting .exe files. If you find a .rar file, it is likely from a third-party repair site and should be extracted before use. Method 1: Automatic Update (Recommended)
If your TV is functioning normally and connected to the internet, use the built-in update tool. Press the button on your remote. Navigate to Setup > System Menu . Select System Update and then System Update Search Now .
To update or repair the software on a (also known as the TH-43E302G ), you typically have two options: a standard over-the-air update for working TVs or a manual USB installation for TVs with software issues.
This method is used if the TV cannot connect to the internet or if you need to re-flash the firmware from a file. Download Information of TV for Europe/ UK and Ireland/ CIS
If an update is found, follow the on-screen prompts to download and install it. Method 2: Manual USB Update