If you have downloaded the firmware package, the contents typically include:
: Place the allupgrade_553_8GB_1GB.pkg (or similar .bin file) onto a FAT32-formatted USB drive. Insert it into the TV, hold the power button, and plug in the power cord to trigger the update. thv55381 firmware top
Format a USB drive to and place the firmware file in the root directory. Insert the USB drive into the USB 2.0 slot of the TV. If you have downloaded the firmware package, the
: The latest firmware versions are specifically tuned for the dual-core A73 high-frequency CPU , reducing lag and improving frame rates during 4K video playback. hold the power button