I've an Flash Image, which is (i guess so) LZMA compressed. There are no visible strings in this image (no comrpessed, busybox etc) and thus I assume its LZMA compressed. The header of the file looks like this:
2SWU3TXVÜ ...

So its possible that this is actually LZMA compressed with a custom magic string. any hints how to decompress this image and mount it?