Inserting the drive into the TV’s USB port while it is powered off.
GENERAL-65JP65UAS (often found in 65-inch 4K Smart TVs) Memory: 1GB RAM / 8GB ROM Understanding the File Name HV553 : The motherboard model series. 3840x2160 : The target display resolution (4K). Download HV553 3840x2160 GENERAL 65JP65UAS part01 rar
Copying the extracted firmware file to a FAT32-formatted USB drive. Inserting the drive into the TV’s USB port
Holding the power button while plugging it in to trigger the automatic update process. Download HV553 3840x2160 GENERAL 65JP65UAS part01 rar
Installing incorrect firmware can permanently "brick" your television. Ensure the board model and panel model match your hardware exactly before proceeding.