: The Hashmie Telecom Telegram Channel maintains a large archive of rare .rar firmware files, including those for the CV series.

until the process completes and the TV restarts. lcd tv led tv smart tv software

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