You must have all parts (e.g., part01 through partXX) to successfully extract the final .img or .bin file. Attempting to use a single part will result in an extraction error. Where to Safely Download Firmware
Troubleshooting Your TCL Smart TV: How to Handle the RTD2841 Firmware Update Download RTD2841 TCL UnionTV Firmware part09 rar
Many TCL enthusiasts use the TCL Updates Telegram Channel to share genuine firmware mirrored from official servers. You must have all parts (e