If part .004 is missing or corrupted, the entire archive will fail to extract.
Did you (like a forum or archive)?
Are you getting a (e.g., "Unexpected end of data")? Do you have all the other numbered parts in the sequence? LLNS234.7z.004
You need all preceding and succeeding parts (e.g., .001 , .002 , .003 , and .005 if it exists). If part
Ensure every file has the exact same prefix: LLNS234.7z . LLNS234.7z.004