: The extracted file should typically be named MstarUpgrade.bin .
Before beginning, ensure you have the correct files. The requested "part1.rar" suggests a large firmware package that was split into multiple parts; you must download all parts (e.g., part1, part2) and extract them together to get the final update file.
There are two primary ways to initiate the update depending on whether your TV can still boot to the menu. Download TOSHIBA 55U7750VN FIRMWARE part1 rar
If your TV is experiencing a "stuck on logo" or "boot loop" issue, use this method: Turn off the main power and unplug the TV.
: Place the MstarUpgrade.bin file directly in the root directory of the USB drive (not inside any folders). 2. Installation Methods : The extracted file should typically be named MstarUpgrade
Press and hold the button on the TV's physical side panel.
: Use a USB 2.0 flash drive with a capacity of 4GB or less , formatted to FAT32 . There are two primary ways to initiate the
Press on the remote and navigate to Settings > Software Update (USB) .