The recovery program seem to been unsuccessful. Seems to be random noise, and bits of pdf files.
I guess you could try a program like dd and make a textfile of the flash drive, as the lyx files are usually plain text files. Then search after LYX and if you found something like: #LyX 2.1 created this file. For more info see http://www.lyx.org/ you would have the start of the file, and then just copy until you find \end_document and past it into a new -lyx file and try open it with lyx. It might save some of the file at least. The bib files are harder, you could search for something like @book, I guess. Ingar
