Do you plan on updating via a or a hardware programmer ? Share public link
The firmware file might be corrupted during download. hktrt2831p738 firmware
If the TV is totally dead (no standby light), a USB flash might not work; in that case, the eMMC flash memory might need to be reprogrammed using specialized tools like RT809H, as shown in similar eMMC dump scenarios . 5. Summary and Key Takeaways Description HK.T.RT2831P738 Common Device Bravis 43G5000T2, other generic LED TVs File Type install.img Format Method USB Flash via Physical Power Button Do you plan on updating via a or a hardware programmer