The indicator will flash slowly during the update (5–7 minutes).
Unplug the TV, remove the USB drive, and then turn the TV back on. The indicator will flash slowly during the update
Press and hold the Power button on the TV body, then plug it into the outlet. Keep holding the button until the indicator light starts flashing (usually red). Wait for Completion: remove the USB drive
Typically allupgrade_5522_8G_1G_ref56.pkg (Note: the name may vary slightly based on the specific panel revision). Installation Guide The indicator will flash slowly during the update