A BIOS or firmware update can fix throttling, improve fan behavior, patch security holes, and add support for new components, but it is also the one update that can brick a laptop if it goes wrong. The good news is that with a few precautions, a BIOS flash on a modern gaming laptop is routine. Here is how to do it without drama.
Decide whether you even need it
Do not flash BIOS just because a newer version exists. Read the release notes. Worthwhile reasons include a fix for a bug you actually have (poor thermals, unstable sleep, fan issues), a security patch, or support for a CPU/RAM upgrade you are planning. If the machine is stable and the notes list only minor changes, it is reasonable to wait.
The golden rule
If it isn’t broken and the update doesn’t fix something you need, there is no urgency. BIOS updates carry a small but real risk, so weigh reward against it.
| Precaution | Why |
|---|---|
| Plug in AC power | Power loss mid-flash can brick the board |
| Battery above 30–50% | Backup if AC drops |
| Correct model file | Wrong firmware can brick it |
| Close all apps | Prevents interruption during flash |
| Do not force shutdown | Let the flash finish fully |
Flash it the right way
Get the file from the official source only
Download the BIOS strictly from your laptop maker’s official support page for your exact model and, where relevant, sub-model. A mismatched file is the number-one cause of bricked flashes. Never use firmware from a forum or third-party mirror.
Run it plugged in and leave it alone
Connect the charger, ensure the battery is above 30–50% as a safety net, close everything, and launch the vendor’s update tool. Once the flash starts, do not touch the keyboard, close the lid, or cut power. The screen may go black and the machine may reboot several times over 2–5 minutes; this is normal. Forcing a shutdown here is exactly what bricks boards.
After the update
Once it boots back to Windows, open BIOS setup and confirm the new version number. Some updates reset BIOS settings to default, so re-enable anything you had changed, such as an 80% charge limit, a specific fan mode, or memory profiles. Verify the machine still sleeps, wakes, and games normally.
What a BIOS update can and cannot fix
Set expectations before you flash. BIOS updates commonly improve fan behavior, sleep and wake reliability, memory compatibility, security, and sometimes power limits that affect sustained performance. What they will not do is turn a mid-tier laptop into a faster class of machine or repair physical thermal problems; for hot temperatures, a repaste and dust cleaning do far more than firmware. Match the update to the problem you actually have.
FAQ
Can I update BIOS on battery power?
You should not. Always run a BIOS flash with the AC charger connected. A power loss during the write can corrupt the firmware and leave the laptop unable to boot, which is difficult and sometimes impossible to recover at home.
What if the BIOS update fails or the laptop won’t boot?
Some laptops have a BIOS recovery mode that flashes from a USB drive using a specific key combination at power-on; check your model’s manual. If recovery fails, the board may need service, which is why using the correct file and stable power is so important.
Bottom line: update your gaming laptop’s BIOS only when the notes address a problem you have or a component you are adding. When you do, use the exact official file for your model, keep it plugged in with a charged battery, and never interrupt the flash. Follow those rules and a BIOS update is a safe, sometimes transformative fix rather than a gamble.
