: Press and hold the physical Power button on the TV (not the remote).
: Plug the USB drive into the USB port on the back or side of the TV. Download Tcl L32D3000A RD853V AP@asad rar
: Ensure your USB drive is formatted to FAT32 . : Press and hold the physical Power button
: While still holding the Power button, plug the TV back into the outlet. Download Tcl L32D3000A RD853V AP@asad rar
Select to check for the latest official version available over the air.
: Use a utility like WinRAR or 7-Zip to extract the contents. You are looking for a file that typically ends in .bin or is named Update.img .