Place the extracted firmware file (typically named allupgrade_v311.bin or similar) in the root directory of the USB. Flash the TV: Power off the TV and unplug it. Insert the USB into the TV's USB port.
Release the button when the upgrade progress bar appears on the screen. Download ATM20 PB819 1366x768 Samsung USB part3 rar
Once the update reaches 100%, the TV will restart. Unplug the USB drive immediately to prevent a restart loop. Where to Find Files Download ATM20 PB819 1366x768 Samsung USB part3 rar