Because the file ends in .part09.rar , it is one piece of a "split archive". To successfully put them together, you must:
You do not manually "merge" them; a file archiver does this automatically during extraction.
: Ensure you have every part (e.g., part01 through part09 or however many the set contains).
This guide explains how to handle the multi-part RAR file you've downloaded, which appears to be firmware for a smart Android LED TV board. 1. Preparation