Download the specific firmware file for your panel resolution and copy it to the root directory of the USB (do not put it in a folder). Insert USB: Plug the drive into the USB port of the TV.
Because this board is used by multiple manufacturers, there is no single "official" website. You can find firmware (usually a bin file) on specialized technician forums and archives: tp.sk518d.pb802 software free download
Q: How do I install the TP.SK518D.PB802 software? A: Follow the on-screen instructions to download and install the software on your computer. Download the specific firmware file for your panel
: Do not turn off the power until the progress reaches 100%. tp.sk518d.pb802 software free download