Main system BIOS dump for the Lenovo IdeaPad U310 on Quanta motherboard DA0LZ7MB8E0, revision E, packed as a 2.91 MB RAR archive. The Main label indicates the primary SPI BIOS image rather than a separate EC file. Technicians write such dumps with a CH341A or similar programmer to recover boards that will not boot after a corrupted update. Confirm the DA0 code and Rev E silkscreen on the PCB, read and keep a backup of the existing chip, and verify the file size equals the flash capacity before writing.
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 →