Insert the USB into the TV's USB port while the power is off.
The indicator light should blink rapidly, signifying the update has started. Download CV338H A50 1920x1080 USB Tested part04 rar
: The Hashmie Telecom Telegram Channel maintains a large archive of rare .rar firmware files, including those for the CV series. Insert the USB into the TV's USB port while the power is off
You can download the firmware and access related support documentation through several community-driven tech blogs and forums. This specific board is a common Android smart TV mainboard often found in brands like Skyworth and other generic LED TVs. Direct Download & Blog Sources Download CV338H A50 1920x1080 USB Tested part04 rar