If your TV is connected to a network, you can check for updates directly via Menu > Get Help > Software Upgrade .
Are you experiencing a (like a blinking red light) that prompted the search for this firmware? Support - Toshiba TV Download 47L2400EE zip
Improvements for specific pre-installed applications. How to Perform the Update If your TV is connected to a network,
A blue screen should appear showing the progress of the software update. turn off the TV during this process. Download 47L2400EE zip
Resolves unexpected disconnections or intermittent operation.
If you have located and downloaded the correct zip file, follow these general steps found in Toshiba service manuals: