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What Is a Firmware Update? Why and How to Update Firmware on Your Devices

by Lauren Ballejos, IT Editorial Expert
What is a Firmware Update? Why and How to Update Firmware on Your Devices blog banner image
What is a Firmware Update? Why and How to Update Firmware on Your Devices blog banner image

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Key Points

  • Firmware operates at a low level within devices such as computers, routers, smartphones, IoT devices, and enterprise equipment, directly managing processors, memory, and networking hardware.
  • Firmware manufacturers release updates to patch vulnerabilities, fix bugs, optimize system stability, and ensure compatibility with modern operating systems and applications.
  • Unpatched firmware can expose devices to exploits, ransomware, and hardware failures while limiting access to new features and performance enhancements.
  • Firmware installation methods vary by device and may involve over-the-air (OTA) updates, USB connections, BIOS/UEFI tools, or management software.
  • Interrupting power or disconnecting during firmware updates can brick the hardware, making backups and stable power sources essential.
  • Centralized endpoint management and update automation tools help maintain firmware compliance, reduce vulnerabilities, and streamline firmware lifecycle management at scale.

Most endpoint devices today, from computers and tablets to smartphones and routers to cars and appliances, rely on a combination of hardware and software to function correctly. The hardware inside these devices requires a specific type of programming, called firmware, to run.

What is firmware?

Firmware is a type of software containing a set of instructions that determines how a device’s hardware operates and functions. They are installed directly onto components such as memory chips or graphics cards in electronic devices.

Unlike regular software, which can be easily installed or updated, firmware is permanently embedded in the hardware and therefore requires different methods to update it.

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What is a firmware update?

A firmware update is the process of upgrading the firmware installed on a device by altering its code. Firmware updates typically come from the device manufacturer and are designed to fix bugs, improve performance, enhance security, and introduce new features.

How to update firmware depends on the device and the method of update delivery. Firmware updates can be delivered through various channels, such as over-the-air via Wi-Fi, USB connections, or r software provided by the manufacturer.

Why is updating firmware important?

Keeping firmware up to date improves the functionality and overall user experience of your devices through the following benefits:

BenefitDescription
Security enhancementsPatches vulnerabilities to protect against cyber threats and data breaches.
Bug fixesFixes bugs and glitches for smoother, more stable device operation.
Improved compatibilityEnsures compatibility with new software, hardware, and features.
Optimized performanceBoosts speed, efficiency, and overall device performance.

Keeping your devices up to date with the latest firmware versions ensures that your devices are secure and benefit from improved performance and compatibility.

Why is updating firmware important?

Keeping firmware up to date improves the functionality and overall user experience of your devices through the following benefits:

Security enhancements

Firmware updates often include security patches that address vulnerabilities and protect your device from potential cyber threats. Failing to update your firmware leaves your device vulnerable to attacks and compromises your personal data.

Bug fixes

Just like any software, firmware can have bugs or glitches that impact the performance of your device. Firmware updates frequently address these bugs, resulting in a smoother and more stable operation.

Improved compatibility

As technology advances, firmware updates ensure your device remains compatible with the latest software and hardware, enabling you to take advantage of new features and capabilities.

Optimized performance

Firmware updates often include performance optimizations that enhance the speed and efficiency of your device. These improvements can lead to faster boot times, smoother multitasking, and improved overall performance.

Keeping your devices up to date with the latest firmware versions ensures they remain secure and also receive and benefit from improved performance and compatibility.

What happens if you don’t update firmware?

Ignoring firmware updates can negatively impact your device’s security, performance, compatibility, and overall user experience, including:

  • Security risks: Without the latest firmware updates, your device may be vulnerable to security breaches and hacking. Cybercriminals often target outdated firmware to exploit vulnerabilities and gain unauthorized access to your device or personal information.
  • Compatibility issues: Without firmware updates, your device may struggle to work with newer software or hardware, resulting in compatibility issues, crashes, and errors, or even render your device unusable.
  • Poor performance: Firmware updates often include performance optimizations that improve the speed and efficiency of your device. Not updating means you miss out on these improvements and may experience slower operations, lag, or freezing.
  • Missing out on new features: Firmware updates often introduce new features or functionalities that enhance your device’s capabilities. By not updating, you limit the potential of your device.

How to know if firmware needs to be updated

To determine if your device’s firmware needs to be updated, follow these practices:

Manually check the firmware’s current version

You can determine which firmware version your device is currently running by accessing Settings or the Admin Panel. Likewise, you can also visit the manufacturer’s site to check on the latest firmware for your device’s model.

Stay notified on official channels

Many devices typically notify users of the availability of the latest firmware version via on-screen messages and emails. Be sure to monitor these notifications.

Look out for performance and security issues

Devices often exhibit signs of being outdated, such as slower performance and response times, frequent crashes, security alerts, and compatibility issues. Always stay alert for these signs and check if these issues are firmware-related.

How to update firmware on different devices

Identifying a firmware update for your device and how to update firmware varies depending on the manufacturer and the device itself. Before you begin, consult the device’s user manual or the manufacturer’s support page for detailed instructions on how to update firmware. If you don’t have the user manual, follow these steps.

1. Identify the device model and manufacturer

Identify the device model and manufacturer before you begin by checking the device itself or the user manual. Keep this information at hand to help you find firmware updates for your device.

2. Check for firmware updates

Visit the manufacturer’s official website or support page and look for a section dedicated to firmware updates or downloads for your device model. Here, you should find the latest firmware version available for your device.

3. Download the firmware update

Download the appropriate firmware update for your device to your computer or directly to the device, as instructed by the manufacturer. Make sure to save it in an easily accessible location and remember its file name.

4. Connect the device and install the firmware update

Connect your device to your computer by using a USB cable or following your manufacturer’s specific instructions, or go straight to your device. Locate the firmware update file you downloaded and follow the on-screen instructions to install the update. Please read and follow all the steps carefully to avoid any potential issues.

5. Wait for the update to complete

During the firmware update process, your device may restart multiple times or display progress indicators. Allow the update process to complete without interruption to avoid corrupted firmware or even permanent damage to your device.

6. Verify the firmware update

After completing the update, verify that the firmware update was successful. Check the device settings or the manufacturer’s instructions to confirm that the updated firmware version was successfully installed on your device.

What happens if you don’t update firmware?

Ignoring firmware updates can negatively impact your device’s security, performance, compatibility, and overall user experience, including:

1. Security risks

Without the latest firmware updates, your device may be vulnerable to security breaches and hacking. Cybercriminals often target outdated firmware to exploit vulnerabilities and gain unauthorized access to your device or personal information.

2. Compatibility issues

Without firmware updates, your device may struggle to work with newer software or hardware, resulting in compatibility issues, crashes, and errors, or even render your device unusable.

3. Poor performance

Firmware updates often include performance optimizations that improve the speed and efficiency of your device. Not updating means you miss out on these improvements and may experience slower operations, lag, or freezing.

4. Missing out on new features

Firmware updates often introduce new features or functionalities that enhance your device’s capabilities. By not updating, you limit the potential of your device.

How to update firmware depends on the device, while the upgrades themselves can be delivered through various channels, such as over-the-air through Wi-Fi, USB connections, or with a computer software provided by the manufacturer.

Best practices for updating firmware

While updating firmware is a fairly straightforward process, following these best practices will ensure that your update is successful and that errors are minimal.

Best PracticeDescription
Back up your dataProtects files and settings if the update fails.
Read the instructionsFollow manufacturer guidelines to avoid errors and ensure compatibility.
Use a stable power sourcePrevents failed updates or hardware damage from power interruptions.
Don’t interrupt the updateMinimizes risk of firmware corruption or device malfunction.
Keep the updated firmware filesAllows reapplication of the update if needed for resets or reinstallations.

Leverage automation and streamline firmware updates with NinjaOne.

Learn more about NinjaOne Patch Management.

Managing firmware updates at scale

Proactively checking for firmware updates from your device manufacturer and regularly updating firmware can help you fix issues, maintain the security and compatibility of your devices, and keep them performing at their best.

Managing firmware updates for a single device doesn’t require much effort, but keeping your entire network updated, patched, and secure is time-consuming. Automating IT tasks such as software deployment, updates, and patch management eases the burden on your IT department while keeping your network running at peak performance.

Whether you have a few endpoints or thousands to manage, NinjaOne’s endpoint management solution gives you the tools and reporting you need to help you do more.

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FAQs

A firmware update modifies the embedded software that controls a device’s hardware, enabling it to operate correctly with current operating systems, applications, and connected devices. These updates are critical because they deliver security patches that close known vulnerabilities, fix bugs causing crashes or degraded performance, and improve compatibility with newer technologies.

Failing to update firmware leaves devices exposed to known security vulnerabilities that the manufacturer has already patched. Over time, outdated firmware also causes compatibility issues with newer software and hardware, reduces performance as optimization improvements are missed, and results in the loss of features added in subsequent releases. In regulated environments such as healthcare or finance, running firmware with known, unpatched vulnerabilities can also constitute a compliance violation under frameworks like HIPAA or PCI DSS, which require remediation of known security issues within defined timeframes.

The most reliable method is to check your device’s settings or admin panel for the current firmware version, then compare it with the latest version listed on the manufacturer’s official support or downloads page for your specific device model. Most modern devices also send on-screen notifications or email alerts when updates are available.

The update process varies by device type: computers and servers typically update BIOS or UEFI firmware through the manufacturer’s management tool or a bootable USB drive; routers and network devices update through the admin web interface; and smartphones and IoT devices primarily use over-the-air (OTA) updates delivered via Wi-Fi. In all cases, download the firmware file directly from the manufacturer’s official support page for your exact device model, follow their specific installation instructions carefully, and ensure the device has a stable power source throughout.

Firmware updates are safe when performed correctly, but interrupting the update process can corrupt the firmware and leave the device in an unbootable or permanently damaged state, commonly called “bricking.” To minimize risk, always back up device data before updating, verify you have the correct firmware file for your specific device model and hardware revision, use a stable power source throughout, and allow the installation to complete without interruption. Using firmware files downloaded directly from the manufacturer’s official support page rather than third-party sources also prevents installing malicious, incompatible, or tampered firmware.

Yes. Firmware updates frequently include critical security patches that close vulnerabilities in the hardware interface layer, which operates below the operating system and is harder to detect and remediate through traditional security tools. Security researchers and device manufacturers regularly discover and disclose new firmware vulnerabilities, and organizations that automate firmware update monitoring and deployment close these exposure windows significantly faster than those relying on manual processes.

Yes. Endpoint management and patch management platforms can automate firmware update detection, scheduling, and deployment across entire device fleets, eliminating the manual effort of checking and updating each device individually. Automation is especially important in environments with large numbers of endpoints, where manual firmware management is not scalable and inconsistent patch cycles result in vulnerable devices that fall through the cracks.

The most reliable approach combines scheduled maintenance windows, staged rollout rings, and a centralized patch management platform that can verify successful updates and automatically roll back failures. Define maintenance windows during off-hours or low-activity periods for each device group, and use ring-based deployment, so a problematic firmware release affects a handful of devices rather than every endpoint simultaneously.

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