Firmware for a Pegatron board labelled BYT-X1 revision 1.02, in a 2.96 MB RAR. BYT is commonly used for Intel Bay Trail designs, though the name gives no device model, so identify the target by the board marking. Pegatron builds boards for many brands, which is why the PCB code matters more than the case label. Reflash the SPI chip with an external programmer to repair a dead or corrupt BIOS, backing up the original and checking that the dump 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.
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 →