Installing incorrect or unofficial firmware can permanently damage (brick) your TV. Always verify your Chassis No (e.g., RT41 for some RTD2841 models) and Product Info before attempting a manual flash.
Select and then Network Update to check for available software directly from TCL servers. Manual USB Update (Official Path) : Download RTD2841 TCL UnionTV Firmware part04 rar
: Technical guides like mojothemonkey2/TCL_Guide explain how to flash different firmware versions, including .img and .zip OTA files. Manual USB Update (Official Path) : : Technical
: There is a well-known community Telegram channel for TCL firmware where users share genuine files by searching for their "Project ID" found in the TV settings. Verified Community Sources
: If your TV uses the Roku platform, you can download specific manual update files by entering your Hardware ID at tvupdate.roku.com . Verified Community Sources