Once you have downloaded the .zip or .tar file, follow these steps to flash the firmware via USB:
Plug the TV back into power while continuing to hold the button. Download S512 PC821(1920 1080)(DEXP) zip
Press and on the TV panel (not the remote). Once you have downloaded the
: Once the update reaches 100%, the TV may restart automatically or the LED will stop blinking. Unplug the USB drive and power cycle the TV. Unplug the USB drive and power cycle the TV
Do you have the of your DEXP TV or the panel sticker info to ensure this is the exact file you need? Complete TP HV553 PC821 Software Setup Instructions
: Unzip the package on your PC. You should see a binary file (often named allupgrade_... .bin or similar).
board. Note that the archive often contains multiple files for different serial number ranges and panel types (e.g., LSC480HF01-W).
