Casper CKY laptop BIOS for the MT50IN1 board, revision V.02, described in the name as a fully working image. Packed as a 2.89 MB RAR archive, it is meant for recovering a unit with a dead or corrupted SPI flash where the machine powers on without display or loops on boot. Open the archive, compare the binary size with the capacity of the flash chip fitted to your board, dump and store the original contents first, then write and verify using a hardware programmer with a suitable clip or after desoldering.
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 →