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A: Do not panic. This suggests the device is a custom OEM unit. Contact your system integrator or the original equipment supplier. Provide them the serial number. They will give you a direct FTP link.

Use a FAT32-formatted USB flash drive (ideally 4GB or 8GB). Copy the firmware file (often named allupgrade_5522_8G_1G.bin or similar) to the root directory of the drive—do not put it inside a folder. Installation Process: Power off the TV and unplug it from the wall. Insert the USB drive into the TV's USB port. tpmt5522pc821 software download new