Open BiosCreator and click Acer (InsydeFlash) button.Procedure for Creating Acer Stock Firmware How to split System BIOS and EC firmware bios bin file?.How to extract InsydeFlash bios update?.You may also check other examples and also a flowchart is shown below as a guide for extracting firmware for Acer. Follow this general steps to create a stock firmware. Most Acer laptops utilizes InsydeFlash UEFI BIOS. This site uses Just the Docs, a documentation theme for Jekyll.