Copy the firmware file ( .bin ) to the of the USB drive. Do not put it in a folder. Unplug the TV from the power outlet. Insert the USB drive into the TV's USB port. Plug the TV back into the power.
You want to use a specific remote control that the current firmware doesn't recognize. How to Install TP.VST59.P67 Software via USB tp.vst59.p67 software
If the software works but shows the wrong brand logo, you can change this in the "General Settings" of the Factory Menu. Copy the firmware file (