Don't bother like that. You can try the operation:

Turn on the setting light (press and hold the setting key for more than three seconds, or press and hold the setting key first and then press the power button). The lights are on. Let them go. ?

after the setting light comes on, press the volume to increase it. When the volume character is displayed on the TV, press the setting light off (press the setting key) and try to operate the common keys.

if there is no volume-added character after the above operation (press 3 times), it may be a problem with the remote controller. ?

there are generally several settings, which were used just the day before yesterday. Type 1: press and hold the setting key in the upper left corner until the indicator light turns on and let go, and then press the volume key "+"until the icon appears.

two ways to play it are: press and hold the setting key in the upper left corner, let go after the light is turned on, press the power button again to make it adapt automatically, and then press any key to OK. The third way is to press the code of your TV brand directly after pressing the setting key in the upper left corner to light up ~ I hope I can help you.