BIOS firmware for the Dell Inspiron 20 3064 all-in-one on a Kaby Lake-U platform, board 15107-1, with 3YW3JCA in the name, possibly a service tag or part code. The board number follows the Wistron pattern of a five-digit project and revision. Technicians flash such dumps onto the SPI chip with a hardware programmer when the system has no display or hangs at startup. Dell boards keep service tag and system data in flash, so read the original chip first. Confirm the 15107-1 marking and that the image size fits the chip.
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 @biosarchive. Enginerys does not host this file.
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The same file was posted more than once. If one link is dead, try the next.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →