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: Download the firmware zip folder. Crucial : Extract the file (usually a .bin or .rar ) to your desktop first. Do not attempt to run the installer or copy files while they are still inside a compressed folder.

Watch the TV's . It should start blinking rapidly (red and blue or red and green). This rapid blinking signals that the bootloader is writing the new .bin file to the flash memory chip.

If you encounter any issues during the USB software download or update process, contact with the following information:

The firmware might not match your remote controller type. TP.RD8503.PB816

To enter the hidden factory settings menu, power on the TV and press one of the following key combinations sequentially on the remote control:

Unplug the TV power cord, remove the USB flash drive, and plug the TV back in to boot it up normally. Important Service Menu Codes

What is the you are connecting to the board?