For model-specific drivers or user manuals, you can also search the Official Haier Support Page by entering your TV's serial number.
Keep holding the button until the screen shows an "Upgrading" or "Software Updating" progress bar. Download Haier 42E3500A Firmware USB rar
If your TV still powers on and has an internet connection, you can check for official updates through the system menu: For model-specific drivers or user manuals, you can