Never update your BIOS “just because.” If your system runs perfectly, leave it alone.
Yes. For newer AN515-43 units, open Acer Care Center > Check for Updates. If a BIOS update is listed, it’s the safest method. But the manual link above is often faster.
If the update fails (due to power loss), the motherboard might not boot. Following all instructions carefully minimizes this risk. update bios acer nitro 5 an51543 link
On this page, find and expand the section to see a list of available versions.
A window will appear informing you of the current version and the new version. Follow the on-screen instructions closely. Never update your BIOS “just because
: Keep your laptop plugged into its AC adapter and ensure the battery is fully charged .
For the Acer Nitro 5 AN515-43, the official link is the safest source. However, due to , it is strongly recommended to proceed with caution. If you are on an older version and experiencing no issues, skipping the update is a valid option. Always cross-reference the release notes and user feedback before proceeding. If a BIOS update is listed, it’s the safest method
Here is the direct link to download the BIOS update for Acer Nitro 5 AN515-43:
No power interruptions, always verify the model number, and load optimized defaults after the update.
You can find the latest BIOS updates on the Acer Nitro 5 AN515-43 Support Page .
Acer often delists very old products. If the official link returns a 404, use the Acer Driver Detector tool (built into the Acer Care Center pre-installed on your Nitro 5) or contact Acer live chat for a direct FTP link.