Why this matters: A firmware build for XR819 Wi-Fi will not work on RTL8188FTV hardware, even if the board model matches.
🔧 This firmware ID appears on certain Chinese-market all-in-one PCs, tablets, or industrial displays (often Rockchip or Allwinner based). TP likely refers to touch panel firmware. tp.sk506s.pb802 firmware
Power on the TV. The motherboard should automatically detect the firmware and begin the update. Why this matters: A firmware build for XR819
Because this is an internal SKU, it is available as a public consumer download. It is intended strictly for factory flashing or authorized service center use. tp.sk506s.pb802 firmware
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Once the LED stops flashing or the TV reboots automatically, the update is complete. Unplug the USB drive and restart the TV. Reliable Firmware Sources