The "Software Upgrading" screen should appear. Release the button and wait for the process to reach 100%.
: Format a USB flash drive (8GB or smaller is recommended) to FAT32 .
: Ensure you have downloaded TCL 48D2740 Firmware.part1.rar through TCL 48D2740 Firmware.part5.rar .
Download Tcl 48d2740 Firmware Part5 Rar -
The "Software Upgrading" screen should appear. Release the button and wait for the process to reach 100%.
: Format a USB flash drive (8GB or smaller is recommended) to FAT32 .
: Ensure you have downloaded TCL 48D2740 Firmware.part1.rar through TCL 48D2740 Firmware.part5.rar .