BIOS image for the Casper A15 laptop, labelled A15A, on a Pegatron-made A15 board, with a UEFI fix noted in the name, suggesting it was modified to correct a UEFI boot problem. The ZIP is about 1.38 MB. Pegatron is the ODM behind this platform. Flash it to the SPI chip with a programmer after reading and saving the original dump, which keeps serial and system data recoverable. Confirm the board marking and that the image size matches the chip 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 @biosfiles. 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 →