For manual installation, your USB drive must be prepared specifically for the TV's hardware: : Use a Windows PC to format your USB drive to FAT32 .
When firmware is split into multiple parts (e.g., part1.rar and part2.rar), you must have in the same folder on your computer to successfully extract them. Requirements : Use a tool like WinRAR or 7-Zip . Download TOSHIBA 39L4300EE Firmware part2 rar
: Plug the prepared USB drive into the USB 1 port on the side or back of the TV. For manual installation, your USB drive must be
If your TV still functions enough to access the menu, you can check for official updates directly: : Plug the prepared USB drive into the
Manual updates for this model typically follow this procedure:
Ensure your TV is connected to a stable Wi-Fi or Ethernet connection.
: Go to Settings > Device & Software (or System ) > About > Check for Updates .