Identify the latest version (e.g., v1.06 or later if listed) and click the BIOS Update Procedure
If your Acer Aspire 5749 no longer boots after a BIOS update (black screen, fans spin, no POST beep), you have one last chance:
: The system will automatically flash the BIOS and may restart several times. Do touch the power button during this time. Acer Community specific hardware issues you're trying to solve with this BIOS update? How to update your BIOS on an Acer notebook computer
Finding the correct is a matter of using the official Acer Support portal. Always double-check that the file you downloaded matches your laptop model before running it. When done correctly, a BIOS update can breathe new life into your older Aspire laptop, unlocking support for faster CPUs and fixing persistent hardware bugs.
Download Acer Support Drivers and Manuals | Acer United States