: A red indicator should start flashing. When it begins flashing rapidly between red and green, the update is complete.
: Unplug the TV, remove the USB drive, and wait a few minutes before turning it back on. TP.MT5522S.PC822 UHD - Pinterest : A red indicator should start flashing
The firmware you are looking for is likely the for the Polarline 43PU11TC-SM TV. This model utilizes the TP.MT5522S.PC822 mainboard and supports a 4K (3840x2160) resolution. Firmware Details & Sources remove the USB drive
Press and hold the button on the TV while plugging it back into the outlet. : A red indicator should start flashing