: Open the downloaded .rar file using a tool like WinRAR or 7-Zip.

Release the button once the update progress bar or "Software Upgrading" screen appears.

: Never rename the .bin file unless instructed by specific technical documentation, as the TV's bootloader looks for a specific filename.

Since Mitashi's official website often lacks direct firmware repositories, users typically find these files on reputable technician forums or third-party archives.

Turn off the TV and unplug it from the power outlet. Insert the USB drive into the TV's USB port. Press and hold the Power button on the TV (not the remote). While holding the button, plug the TV back in.