Why firmware updates need care
The BIOS or UEFI is the low-level firmware that starts your computer before the operating system loads. Updating it can fix bugs, improve compatibility, or add support for new hardware, but it is one of the riskier updates: a failure or the wrong file can leave the machine unable to start, sometimes called bricking it. Because the stakes are high, preparing carefully before you flash firmware, verifying, reading, and ensuring stable power, is essential to doing it safely.
Verify your exact model
The single most important check is using firmware meant for your exact model. Boards and systems that look similar, or share a family name, can have different firmware, and applying a file intended for a similar-looking but different board can brick it. Confirm the precise model and revision of your motherboard or system, and download firmware only for that exact identifier from the official source. This verification is the heart of safe firmware updating, so never assume close is good enough.
Read the release notes
Before updating, read the release notes for the firmware version, which describe what it changes, fixes, or requires. This tells you whether the update is actually relevant to you, since if it does not address a problem you have or add something you need, you may not need to update at all. Release notes can also warn of important steps or caveats. Understanding what an update does, and whether you need it, prevents unnecessary risk.
Ensure stable power and recovery
Firmware updating must not be interrupted, so ensure stable power throughout: a desktop should be on reliable power, and a laptop should be plugged in with a charged battery, so a power loss mid-update, which can cause a failed flash and a bricked board, cannot happen. Check whether your board has recovery support, a built-in way to recover from a failed update, which provides a safety net. Stable power plus knowing your recovery options greatly reduce the risk.
Mind encryption keys and follow instructions
If your drive is encrypted, a firmware update can sometimes trigger a request for your encryption recovery key on next boot, so have that key saved and accessible beforehand to avoid being locked out. Finally, follow the vendor's official instructions exactly for the update method, since each system has its own correct procedure. Combining the right file, release-note awareness, stable power, recovery support, saved encryption keys, and the official steps makes a firmware update as safe as it can be.
The bottom line
Before updating BIOS or UEFI firmware, verify your exact model and use only firmware made for it, read the release notes to confirm you need the update, ensure stable uninterrupted power, check recovery support, have any encryption recovery key saved, and follow the vendor's instructions exactly. Because the wrong file or an interruption can brick the board, this preparation is what makes firmware updating safe.
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See also: What is UEFI? Explained, What is firmware? Explained.
Sources
Published date reflects the original event date (2026-10-23). This article is original Skillo editorial written from the sources above; facts were verified in September 2026.
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