: Use a tool like WinRAR or 7-Zip to right-click on part01.rar . If all parts (including part10) are present, it will automatically combine them into a single .img or .pkg file.
: Once extracted, you must format your USB drive to FAT32 . Copy the extracted firmware file (often named Update.img or a similar .bin file) directly to the root directory (not inside any folders). Installation Methods for RTD2841 Download RTD2841 TCL UnionTV Firmware part10 rar
Press and on the TV (not the remote).
If you are missing parts or the file is corrupted, it is safer to source firmware from: How to update the software on an Android TV - TCL Support : Use a tool like WinRAR or 7-Zip to right-click on part01
Depending on whether your TV can still boot, you can use one of these features: : Turn off and unplug the TV. Insert the USB drive into the USB 2.0 port . Copy the extracted firmware file (often named Update
While holding the button, plug the TV back in. Release the button only when the LED starts blinking or the "Upgrading" screen appears. :