Go to Settings. Select Device Preferences (or About, depending on your TV). Choose About. Select System update. How can I update the software of the TV? - TCL
You must download all parts (part1 through part4) into the same folder before extracting. You cannot extract part 4 individually. USB Preparation: Format a USB drive (under 32GB) to FAT32 .
Enter your TV's serial number on the TCL Support Page to check for authorized downloads. Download NT67F02 LF1V614 part4 rar
Place the extracted .pkg or .zip file on the root of the USB. Access the update via Settings > Device Preferences > About > System Update > USB Update . How to update the software on an Android TV - TCL Support
Search for "T615T03 V614" on TCL-focused forums to find Mega.nz links provided by the community. Important Installation Tips: Go to Settings
Because firmware versions are highly specific to your regional model and hardware revision, downloading the incorrect version can "brick" your device. It is recommended to use official or verified enthusiast channels:
Enthusiast groups like the TCL Android TV Telegram Channel or the XDA Forums frequently host mirrored files for versions like V614 . Select System update
The file "NT67F02 LF1V614 part4 rar" refers to a specific firmware part for TCL televisions, likely using the or T615T03 (MT9615) platform . Firmware files of this size are often split into multiple parts (e.g., .part1, .part2, etc.) for easier hosting.