Extract the downloaded RAR parts. The resulting file is usually named allupgrade_v368_sos.bin or similar. USB Method:
Once complete, the TV will reboot. You may need to access the Service Menu to adjust panel settings or mirror images. Reliable Sources for Downloads Download S368LA1 1920x1080 512M USB part10 rar
Insert the USB into the TV's USB port while the power is off. Extract the downloaded RAR parts