: Copy the extracted file (not the RAR files) directly to the root directory of the USB drive (do not put it in a folder).

: The extraction software will automatically detect and pull data from Parts 2 through 5 to recreate the original file.

: Always check the TCL Support Page first by entering your specific model number. This is the most reliable way to get genuine software.

: Move parts 1, 2, 3, 4, and 5 into one isolated folder on your computer.

: Some users find firmware on unofficial Telegram channels (often found via XDA links), but use caution as these are not officially affiliated with TCL.

Note: If you only try to extract Part 5 by itself, it will fail because it is missing the preceding data. Preparing the Update

Once extracted, you will likely have a single .img or .pkg file. : Use a USB drive formatted to FAT32 .