Plug the TV into the power outlet while still holding the button.
Place the extracted firmware file in the root directory (not in a folder). Initiate Update: Insert the USB into the TV's USB port. Hold the Power button on the TV panel. Download Firmware HV553 PC821 UHD General Life part2 rar
The indicator light should begin to blink, showing the update is in progress. Do not turn off the power until the light stops blinking or the TV reboots. ⚠️ Critical Compatibility Notes Plug the TV into the power outlet while
Plug the TV into the power outlet while still holding the button.
Place the extracted firmware file in the root directory (not in a folder). Initiate Update: Insert the USB into the TV's USB port. Hold the Power button on the TV panel.
The indicator light should begin to blink, showing the update is in progress. Do not turn off the power until the light stops blinking or the TV reboots. ⚠️ Critical Compatibility Notes
