: Plug the TV into the power outlet. The standby LED should begin blinking (often alternating red and green), indicating the update is in progress.
: Plug the USB into the TV's USB port while the power is off. Download CV338H A50 1366x768 SamsungIR part1 rar
This firmware is typically hosted on technician forums and hobbyist sites rather than official manufacturer pages. : Plug the TV into the power outlet