Plug the USB drive into a USB 2.0 port on the TV. Avoid the USB 3.0 (blue) port if available, as some older JVC TVs fail to boot from USB 3.0.
Before starting, you must identify your specific model to ensure you download the correct firmware file. JVC Firmware 2.0 Is Here !! plus Installation Tutorial jvc tv software update usb
After the progress bar reaches 100%, the TV will reboot automatically. Plug the USB drive into a USB 2