Download Toshiba 39l4300ee Firmware Part2 Rar -

Ensure your TV is connected to a stable Wi-Fi or Ethernet connection.

If your TV still functions enough to access the menu, you can check for official updates directly:

: Plug the prepared USB drive into the USB 1 port on the side or back of the TV.

: Turn off the TV and unplug the AC power cord from the wall outlet.