The firmware is typically installed via a USB flash drive using these steps:
If your TV still turns on, try to back up your current firmware using a CH341A Programmer before overwriting it. Finding the Download firmware vst53c4mbmbin verified
file on a FAT32-formatted USB drive, inserting it into the TV, and powering the unit on. The indicator LED usually flashes during the process. The firmware is typically installed via a USB
