Rename the file to Update.bin (if required by your specific model instructions). Copy it to a FAT32-formatted USB drive.

For official and safe firmware versions, it is highly recommended to use the TCL Support Page or contact their Customer Service directly. Downloading split RAR files from third-party forums like KenotronTV is typically a last resort for out-of-warranty repairs.

If your TV is still functional, check for official updates via . Where to Find Support

The code V8-S586T02-LF1V337 indicates the version ( V337 ) and the hardware platform ( S586T02 ).