Compressed RAR archive of 751 KB carrying only the number 1530 in its name, filed as BIOS or firmware. It may relate to a model numbered 1530, but the name states no brand, board number or chip, so the contents must be inspected before use. Open it with WinRAR or 7-Zip and check the image size against the flash chip on the board. Before programming any dump with a CH341A or similar programmer, read and save the original chip contents so the machine can be restored if the image turns out wrong.
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 .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 →