BIOS image for the ASUS Transformer Book Flip TP300LA, read from a Winbond W25Q64 flash chip, archived as RAR of 3.47 MB. The W25Q64 is a 64 Mbit (8 MB) SPI device, so the extracted dump should be exactly that size. Technicians program it with a CH341A or similar tool to revive a board with corrupted firmware. Dump the original chip first to preserve serials and keys, confirm the chip marking and board revision on the PCB, and choose the correct chip type in the programmer software.
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 →