Inserting the drive into the TV and holding the power button while plugging it into a power source to initiate the flash.
According to technical guides on YouTube , the process typically involves: Downloading and merging all .rar parts. Formatting a USB drive to . Download HV553 PC821 3840x2160 Ref56 part11 rar
. This board is commonly found in 4K (Ultra HD) LED TVs from various brands. Technical Breakdown of the Filename HV553 PC821 : Refers to the motherboard model number ( TP.HV553.PC821 Inserting the drive into the TV and holding