Only the indicator light is on, or it's stuck in a boot loop.
Interrupting a firmware flash can "brick" the device. It is essential to ensure a stable power supply and use firmware that matches your specific panel and board revision exactly. hktrt2861v09 firmware install
Do not attempt this update via a smartphone over Wi-Fi. You are playing with fire. Only the indicator light is on, or it's stuck in a boot loop
Installing firmware on this specific board is a specialized technical task, typically reserved for repair professionals due to the risk of "bricking" the TV. Below is a review of the installation process and its impact based on current technical standards and user reports. Only the indicator light is on