Before updating the BIOS, ensure that:
Expand the BIOS section to find the latest version (e.g., v1.11 or later, depending on the 2026 updates). Download: Click the "Download" button to get the ZIP file. 2. Step-by-Step: How to Update BIOS on Acer Nitro 5 AN515-43
Note: Always ensure you are downloading the version designed for Windows 10/11 64-bit. Why You Should Update the AN515-43 BIOS
Once you have downloaded the BIOS update file, follow these steps to update the BIOS on your Acer Nitro 5 AN515-43:
Once the progress bar reaches 100%, the machine will reboot again. It may take slightly longer than usual to show the Acer logo on this boot cycles as the system trains the memory with the new firmware configurations. Step 3: Verifying the Update was Successful update bios acer nitro 5 an51543 link
If you use Windows BitLocker, suspend it temporarily via the Control Panel. A BIOS change can trigger BitLocker recovery mode, locking you out of your data if you lose your recovery key.
New BIOS versions often improve power efficiency and battery life.
Once you're ready, follow these steps:
Proceed with caution. While rare, a failed BIOS update can render the hardware unusable. Acer provides these tools "as-is." Before updating the BIOS, ensure that: Expand the
To ensure the safety of your hardware, always download BIOS files directly from the manufacturer. Go to the official Acer Support website. Enter your Serial Number, SNID, or model number (AN515-43). Select your specific model from the dropdown list.
Updating the BIOS is not something you need to do every day, but it is necessary when:
Some users have reported that after updating to BIOS version 1.12, the laptop became sluggish and unstable, with the issue confirmed by Acer Community moderators. There is no official, easy way to downgrade the BIOS, so it's recommended to only update the BIOS if you are currently experiencing a specific problem addressed by a newer version.
In this article, we will guide you through the process of updating the BIOS on your Acer Nitro 5 AN515-43, including where to find the update link and how to perform the update safely. Step-by-Step: How to Update BIOS on Acer Nitro
After reboot, go to msinfo32 again and confirm the BIOS version matches the new one.
is a critical maintenance step that can improve system stability, enhance compatibility with new hardware, improve fan control, and patch security vulnerabilities. The
If you encounter any issues during the update process or have questions, feel free to ask, and I'll do my best to help.
The official product support page for your laptop is here: https://www.acer.com/us-en/support/product-support/AN515-43/downloads
Close all programs: Ensure no other applications are running in the background.