X555LNBAS303

BIOS .zip 2.35 MB Shared

ZIP archive of 2.35 MB for the Asus X555LN laptop, apparently a BIOS package; BAS303 reads like a BIOS version 303 for that model, though the meaning is not fully certain. The archive is a little larger than a raw flash image, so it may include extra files and should be extracted and inspected first. Images like this are used to reflash the SPI chip with a programmer when the laptop will not POST. Back up the original chip and check the file size matches the flash 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 @biosarchive. Enginerys does not host this file.

All sources (3)

The same file was posted more than once. If one link is dead, try the next.

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More about .zip files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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