Second copy of the Lenovo IdeaPad Flex 15 BIOS archive for Quanta board DA0ST6MB6E0, revision E, 3.50 MB in RAR format. Its size matches the other Rev E archive, so the contents are probably identical; comparing checksums will confirm. The image is used to reprogram a corrupted SPI flash with a CH341A or similar device. Confirm that the DA0ST6MB6E0 code and revision on your PCB agree, read and keep the original chip before writing, and check the binary length against the chip capacity.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @afsbiosfree. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →