Firmware dump for the Lenovo Z51-70 laptop, with no file extension and a size of 128 KB; the name says io read, suggesting a read from the EC or IO-board chip rather than the main BIOS. A dump this small typically matches a small SPI chip or EC flash. Technicians use it to rewrite a corrupted embedded controller that prevents power-on, charging or keyboard functions. Identify the exact chip it was read from, verify the target chip capacity is 128 KB and back up your own chip before programming.
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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →