Reconnect the power while still holding the button.
Plug the USB drive into the USB 2.0 port on the side or rear of the control board.
Copy the correct .bin firmware file to the root directory of your FAT32-formatted USB stick. Do not place it inside any folders. tvst2903 firmware upgrade
Before attempting a firmware upgrade, ensure you have the following ready: Must be formatted to FAT32 . Firmware File: Typically a .bin file (e.g., bin_v59.bin ).
How to update your Smart TV to the latest software - Samsung Reconnect the power while still holding the button
Plug in the USB drive. While the board is powered off, press and hold the Power button on the TV's physical keypad or remote.
The front LED indicator should begin to blink rapidly , indicating the flash is in progress. Release the button once blinking starts. Do not place it inside any folders
The system will scan for the USB. Select Yes or Update when prompted.
The process usually takes 3–5 minutes. The board will enter standby mode or restart automatically when finished.