Sak Decompression Failed -

binwalk -e archive.sak or

zlib-flate -uncompress < part.bin 2>&1 Capture full error: sak decompression failed

dd if=archive.sak of=repaired.sak bs=1M count=<original_size> Or use scalpel / foremost to carve possible intact substreams. Check compression type Run: binwalk -e archive