Do not turn off the power during the update process.
Disclaimer: Firmware flashes are done at your own risk. Ensure the main board ID ( MSD6A638-T8E2 ) matches exactly before applying. Download MSD6A638 T8E2 Toshiba 43U7750 170207 zip
What is the with the TV (e.g., won't turn on, stuck on logo)? Do not turn off the power during the update process
The firmware for the (using the MSD6A638-T8E2 main board) is a 4K UHD smart TV software package often used to resolve issues like stuck logos, stuck startup, or corrupted system software. Key Features and Details of the Firmware Upgrade: Chassis/Board: MSD6A638-T8E2 Resolution: 4K UHD (3840 x 2160). Type: USB Update/Firmware Flash. won't turn on