This error typically stops the update process dead in its tracks, leaving you unable to play games or access the store. But don't panic. This is a known issue, usually related to corrupted download caches or specific file system errors.
This error occurs because Lenovo changed the compression algorithm used for their BIOS update files. Older versions of popular DIY tools (like geteltorito or older BIOS extraction scripts) do not recognize this new format and fail to extract the contents. sak decompression failed
(Define SAK file signature in sak.conf ) This error typically stops the update process dead