: Always verify your model number (found on a sticker on the back of the TV) before downloading any manual firmware files. How to update the software on an Android TV - TCL Support
: Format a USB flash drive to FAT32 and copy the firmware file (often an file) directly to the root directory (not inside any folder). Connect to TV Nikai Android Tv Software Update Download
Note: Using the wrong firmware can "brick" your TV. Always verify your model (e.g., UHD5000CSLED or UHD6520LEDSB) before downloading. : Always verify your model number (found on