Because this is a universal board, official software is often distributed through technician forums or specialized parts retailers rather than a single manufacturer website. Complete TP HV553 PC821 Software Setup Instructions
AC 100V – 200V input with 12V panel voltage support Software & Firmware Installation Guide tp.hv553.pc821 software download
Insert the USB drive into one of the TV's USB ports while the power is off. Press and hold the button on the TV set. Because this is a universal board, official software
The TP.HV553.PC821 provides a robust hardware foundation for Smart TVs: HI3751V553 Operating System: Android 7.0 Resolution Support: Up to 3840×2160 Ultra HD (4K) Memory: 1GB DDR3 RAM and 8GB ROM storage Connectivity: Built-in WiFi and RJ45 Ethernet connector Processor: Dual-core A73 CPU with a quad-core Mali 450 GPU The TP
Ensure the firmware you download matches your specific panel resolution (e.g., 3840x2160).
While holding the button, plug the TV into the power outlet.
The is a universal 4K Smart Android TV motherboard designed for high-resolution LED displays ranging from 50 to 65 inches. This board is a popular "three-in-one" solution that combines the power supply, LED driver, and mainboard into a single unit, making it a common choice for repairing or upgrading 4K TVs. Technical Specifications