The BIOS tool will flash the new firmware and then restart the laptop. Do not shut down, restart, or unplug your computer during this process .

A Flash Firmware Tool window will open. It will show your current BIOS and the new BIOS version. Click "OK" or "Proceed".

: Go to the Acer Support Site, enter your serial number (SNID) or search for "Nitro AN515-43," and expand the BIOS/Firmware section .

Never update your BIOS “just because.” If your system runs perfectly, leave it alone.

To find the official BIOS files for your specific model, navigate to the Acer Drivers and Manuals

To ensure you are downloading the correct BIOS, you should use the official Acer Support site. Acer Support Drivers and Manuals Enter Search Criteria: Type in the search box. Select Model: Choose the Nitro AN515-43 from the list.

How to Update BIOS on Acer Nitro 5 AN515-43 Go to product viewer dialog for this item. : Official Links & Safe Method (2026) Updating the BIOS (Basic Input/Output System) on your Acer Nitro 5 AN515-43

To avoid system corruption or bricking, always acquire files directly through official manufacturer channels rather than third-party mirrors. How to Update the BIOS on an Acer Nitro

: Extract the downloaded .zip file and run the .exe application as an administrator. ⚠️ Critical Tips

Before starting, ensure your system is prepared to prevent a "bricked" motherboard: Plug in Power : The laptop must be connected to an AC adapter throughout the entire process. Battery Charge : Ensure your battery is at least 25% charged (100% is recommended). Close Apps