Fixes random Blue Screen of Death (BSOD) errors related to the power state.
Tweaks the NitroSense fan behavior to keep the AMD Ryzen processor cooler under heavy loads.
Which (Windows 10 or Windows 11) are you currently running?
If you are still running the factory default BIOS (often version 1.02 or 1.05), you are likely missing out on significant improvements: update bios acer nitro 5 an51543 link
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
The installer says "The battery must be charged above 25%" but I am plugged in.
Give the system at least 10 to 15 minutes. Firmware updates sometimes perform multiple internal restarts. If it remains completely unresponsive for over 30 minutes, perform a hard reset by holding down the power button for 15 seconds, plug the charger back in, and turn it back on. Fixes random Blue Screen of Death (BSOD) errors
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.
Updating the BIOS on the Acer Nitro 5 AN515-43 is a maintenance step. The performance uplift in thermals and stability is worth the 15 minutes of installation time.
For the model Acer Nitro 5 AN515-43 , the BIOS update is stable and recommended for fixing graphical glitches and improving Ryzen processor performance. Users should strictly adhere to keeping the laptop plugged in and avoid interrupting the process. If you are still running the factory default
No. The Windows product key is stored in the motherboard’s firmware (UEFI) and remains intact.
Updating the BIOS on your Acer Nitro 5 AN515-43 is a critical maintenance task that can improve system stability, enhance hardware compatibility, and fix persistent bugs. This guide provides a step-by-step walkthrough of the process, including where to find the official download links and the precautions you must take to avoid system failure. Understanding the Risks
The computer will restart automatically, and a progress bar will appear. Do not interact with the keyboard or mouse during this time.