Keep holding the button until an "Upgrading" or "System Updating" message appears on the screen, then release it. Critical Precautions
Ensure the firmware is exactly for your model; installing software meant for a different chassis (e.g., trying to use P2US software on a different series) can lead to a black screen or boot failure.
If your TV is not functioning correctly and cannot perform a standard Network Update through the settings menu, a manual USB update is often required. : Use a blank USB drive formatted to FAT32 . Download S68AT02 LF1V198 part06 rar
The version code S68AT02 refers to the specific chassis or hardware platform used by TCL for these models. The LF1V198 portion indicates the software build version. When downloaded as a split archive (like a "part06.rar"), all parts must be downloaded and extracted together to form a single .bin file, which is the actual firmware image. Manual Installation Process
: Place the extracted V8-S68AT02-LF1V198.bin file directly into the root directory of the USB drive (do not put it in a folder). Initiate Update : Unplug the TV from its power source. Insert the USB drive into the TV's USB port. Keep holding the button until an "Upgrading" or
the TV during the update process, as this can permanently damage (brick) the hardware.
models). Users typically seek this file when their television is experiencing software issues, such as getting stuck on the boot logo or requiring a manual system refresh. Understanding the Firmware Update : Use a blank USB drive formatted to FAT32
The file is a firmware update file for specific TCL Android Smart TVs , notably the P2US series (such as the