You can try this:
Here's what worked for mine:
1. Turn off machine.
2. Press and hold reset button.
3. Press power button while keeping reset button pressed for 10 secs then release.
4. Wait until the backup BIOS prompts and asks to install backup to main BIOS.
5. A window will pop-up stating that the main BIOS is corrupted and needs to reflash, I hit "install"
6. After installing the bios, it will ask to boot or reboot, then will ask to load default or optimized settings in the BIOS.
7. After that, I regained control over my system.