Working BIOS for the IBM / Lenovo ThinkPad T530 on board 11223-1, containing an 8 MB and a 4 MB image per the name, since this platform splits firmware across two flash chips. The 5.17 MB ZIP lets you program each chip with its matching file using an SPI programmer. 11223-1 follows Wistron's board numbering. Identify each chip's capacity, read and save the originals first, and never swap the images, because a dump whose size differs from the chip will not fit.
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.
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 →