Update Bios Acer Nitro 5 An51543 |link| May 2026

The Acer Nitro 5 AN515-43 Go to product viewer dialog for this item.

• If the update process fails or gets interrupted, you may need to recover your BIOS. Refer to Acer's support resources or contact their support team for assistance.

Method 2: Updating BIOS using a USB Drive

1. Check your current version via msinfo32.
2. Download the correct BIOS only from official Acer support.
3. Plug in AC power, close all apps.
4. Use the Windows executable for simplicity, or DOS USB for safety.
5. Do not interrupt the process—even if the screen goes black for 3 minutes.
6. After success, load BIOS defaults and reinstall chipset drivers.

• Note: Look for the "Application" file type if available, as it is the easiest to use.

But the crashing was unbearable.

1. Format a USB drive to FAT32.
2. Copy the .fd or .bin BIOS file to the root of the USB.
3. Rename it to AN51543.fd (exact name – check your Acer support page or readme).
4. Shut down the laptop.
5. Press and hold Fn + Esc (or sometimes just Esc), then press the power button while holding them.
6. Release when the power LED flashes or the fan spins – the recovery will begin automatically.

• A: Yes. Acer’s flash utilities include all intermediate changes. However, if you experience issues, update incrementally to V1.13, then V1.19, then V2.02.