Hi,
some vendors (e.g. Thomson/Technicolor) use a different super block magic
to indicate LZMA compression:
qshs (0x71736873) - LZMA compression
shsq (0x73687371) - LZMA compression, SWAPPED fields
there is a patch to support these already, but it has been ingored for some years, please take a look at https://sourceforge.net/p/squashfs/patches/20/
Thanks.