001-100.7z.002 (iPhone)

: If part .002 is even one byte smaller than it should be, the whole archive is broken.

: Part .002 contains the middle chunk of the data; it has no "header" or "footer," which is why it won't open by itself. 001-100.7z.002

Do you have the of this file, or are you missing the first one ? : If part

: If part .001 or .003 is missing, the extraction will fail. it has no "header" or "footer