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Open a support ticket on the website providing your model number, serial number, and current software version.
The installation method varies depending on your TV's operating system. Standard Menu Method (TV is functional) Plug the USB drive into a USB 2.0 port on the TV. Navigate to the update menu based on your OS: : Settings > System > About > Upgrade > Upgrade by USB. Android TV hisense firmware update usb link
Method A: The Forced Bootloader Method (For Stuck or Bricked TVs) Open a support ticket on the website providing
If your TV is not booting properly, or the previous method fails, you can try this forced method. Navigate to the update menu based on your
Suddenly, the screen changed. The flickering stopped. A grey progress bar appeared against a black background with a message that felt like a lifeline: Software Updating. Do not turn off your TV.