Updating the BIOS could harm your laptop if not done correctly. If a bios update failed because of a power issue or something. Always ensure you have the correct bios update file, the one I provided is direct from Acer using your SNID to identify the device.
But if you follow my instructions, ensuring you have plenty of charge, make sure you have the laptop plugged in and make sure you wait until the bios update completes you will be fine, Never ever turn off a laptop or touch anything while the bios is upgrading.
Kind regards,
Matt