: Plug the drive into the USB 2.0 port on the side of the TV.
To install this firmware manually, you typically need a formatted USB flash drive and access to the TV's service settings. : Format a USB drive to FAT32 . Download File TCL V386 (CHASSIS MS6586).7z
: Turn off the TV and unplug it from the power source. : Plug the drive into the USB 2
Extract the contents of the .7z file. You should find a file named update.img or a similar .bin file. in some cases
: Can be applied via Local Update (USB) or, in some cases, OTA (Over-The-Air). Installation Guide (USB Method)