Download File Tcl V386 (chassis Ms6586).7z Review
: Can be applied via Local Update (USB) or, in some cases, OTA (Over-The-Air). Installation Guide (USB Method)
: Press and hold the physical Power button on the TV (not the remote) while plugging the TV back in. Continue holding for ~10 seconds until the "Upgrading" screen appears. Download File TCL V386 (CHASSIS MS6586).7z
Extract the contents of the .7z file. You should find a file named update.img or a similar .bin file. : Can be applied via Local Update (USB)
Copy this file directly to the (not inside any folder) of the USB drive. Flash the Firmware : in some cases
: The TV will restart automatically once the process is finished, which usually takes about 4–10 minutes. Important Precautions Software Upgrade - TCL USA