Dayz Bios error 50009 | 0x00050009- How to FIX

Are you an avid DayZ player left frustrated by the unexpected response format DayZ Bios Error 0x00050009? Fear not! You’re not alone in this digital battlefield. Many gamers have faced this pesky error, and we’re here to arm you with solutions. This comprehensive guide will provide you with a diverse arsenal of fixes to conquer this common gaming issue. From reinstalling the game to adjusting firewall settings, we’ve got you covered. What’s more, we’ll also share some preventative tips to keep this error at bay, keeping your gaming sessions smooth. So, ready to dive in and conquer this error? Let’s unlock the doors to uninterrupted gaming with this detailed guide on handling the DayZ Bios Error 50009! Here’s to vanquishing gaming errors and revelling in the immersive world of DayZ. Get set, gamers!

What Is DayZ Bios Error 0x00050009?

The DayZ Bios Error 0x00050009 typically appears during game startup or while trying to connect to the game server. It’s a communication error, pointing to issues between your system and the game server. These issues often arise from network errors, server glitches, or issues with the game files.

Dayz Bios error 50009 | 0x00050009- How to FIX

Understanding the Root Causes

To effectively combat the DayZ Bios Error 50009, it’s critical to identify the reasons behind it. Let’s delve into some common causes:

1. Network Issues: Unstable or weak internet connections can cause this error. Your system 

needs a consistent, strong signal to communicate with the game server effectively.

2. Outdated Game Files: Sometimes, the problem isn’t your network but outdated game files causing the error. Regular updates ensure smooth operation and prevent conflicts with your system’s bios.

3. Server Problems: On occasion, the issue lies not within your control but with the game servers. In such instances, patience is key as developers address the problem.

The Comprehensive Solution

Now, let’s focus on fixing the DayZ Bios Error 0x00050009. These solutions are designed to address each potential cause, providing a comprehensive answer to your gaming woes.

How to Fix dayz bios error 50009?

Fix 1: Network Troubleshooting

A robust and stable internet connection is crucial for playing online games like DayZ. The DayZ Bios Error 0x00050009 might be a result of intermittent network connectivity. Here’s how you can troubleshoot your network connection:

1. Restart Your Router

The first and easiest step to troubleshooting is restarting your router. Unplug it from the power source, wait for about 30 seconds, and then plug it back in. Allow it to reboot and try reconnecting your system to the internet.

2. Check Your Network Connection

Sometimes, the problem might be with your system’s connection to the internet. To check this, go to your system’s network settings and see if it’s properly connected. If you’re connected via WiFi, try switching to a wired connection for a more stable connection.

3. Run a Network Troubleshooter

Most operating systems come with built-in network troubleshooters. Run the troubleshooter to diagnose and fix any potential network issues. If any problems are detected, follow the prompts to resolve them.

4. DNS Flushing

Sometimes, DNS cache conflicts can cause connection problems. To flush your DNS, open your command prompt as an administrator, type in ‘ipconfig /flushdns’, and hit enter. Once the DNS is flushed, it can resolve potential IP conflicts.

If you’re still experiencing the DayZ Bios Error 50009 | 0x00050009 after following these steps, proceed to the next solution.

Fix 2: Updating Game Files

Outdated game files can be a cause of the DayZ Bios Error 0x00050009. Updating your game files might help resolve this error. Here’s how you can do it:

1. Check for Game Updates

Most gaming platforms, like Steam or Epic Games, will automatically update your games. However, it’s always good to manually check for updates. Go to your library, select DayZ, and look for an ‘Update’ button or similar. If you find an available update, install it.

2. Verify Game File Integrity

Game platforms like Steam have an option to verify the integrity of game files. This action checks for any missing or corrupted files and replaces them. To do this on Steam, right-click on DayZ in your library, click ‘Properties’, go to the ‘Local Files’ tab, and select ‘Verify Integrity of Game Files’. The process might take some time.

3. Reinstall the Game

If checking for updates or verifying the game files didn’t work, a last resort could be reinstalling DayZ. Uninstall the game from your system and then download and install it again from your gaming platform. Be sure to back up any saved game data if you don’t want to lose your progress.

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Remember, before installing any updates or reinstalling the game, make sure your system meets the game’s minimum requirements and that your device drivers are up-to-date. Following these steps should help resolve the DayZ Bios Error 50009. If not, you might be facing server issues, which are usually resolved by the game developers in time.

Fix 3: Checking DayZ Servers

Sometimes, the DayZ Bios Error 0x00050009 might be a result of problems on the game server’s side. These issues are generally beyond your control, and the only solution is to wait for the developers to resolve them. But how can you check the server status? Let’s dive in:

1. Official DayZ Channels

The first place to check for server updates is DayZ’s official website or their social media accounts. Developers will often post about known issues and their resolution progress on these platforms.

2. Online Gaming Communities

Popular online communities, like Reddit or specific gaming forums, can be useful for getting updates about server statuses. Look for a subreddit or forum thread specifically for DayZ or server issues, and you’ll likely find players discussing the error.

3. Down Detector Websites

Websites like Downdetector offer real-time information about the status of a wide array of services, including game servers. Simply type in “DayZ” in the search bar, and you’ll see a live report about any reported issues.

4. Patience is Key

If it is indeed a server issue, the only solution is patience. Server issues can take a while to be resolved by the developers. Once they’ve addressed the issue, the DayZ Bios Error 50009 should be resolved.

Although waiting can be frustrating, remember that server problems affect many players. Rest assured, developers work hard to get you back in the game as quickly as possible.

Fix 4: Contact DayZ Support or Engage with Gaming Communities

Even after performing all the above fixes, if you’re still encountering the DayZ Bios Error 0x00050009, it might be time to seek external assistance. Here’s how you can do that:

1. Contact DayZ Support

DayZ has a dedicated support team to help with issues like these. You can find their contact information on the official DayZ website. Be sure to provide all the relevant details about the error, including when it occurs and the steps you’ve already tried.

2. Engage with Online Gaming Communities

The internet is full of gaming communities where players share their experiences and help each other out. Websites like Reddit, StackExchange, or the official DayZ forums are full of seasoned players who might have encountered the same error and found a unique solution.

3. Consult a Professional

If you’re uncomfortable troubleshooting technical issues yourself, it might be best to consult a professional. Reach out to a local technician or a reliable online tech service. They can guide you through the process and might have additional insights into solving the error.

Remember, the DayZ Bios Error 50009 is a common problem that many players have encountered and overcome. Don’t let it deter your gaming experience. Keep exploring all possible solutions, and you’ll likely find a way to get back into the game.

Fix 5: Update System Drivers

At times, the DayZ Bios Error 0x00050009 may be a result of outdated or incompatible system drivers, particularly the graphics card driver. Therefore, it’s crucial to keep your drivers up-to-date. Here’s how you can do this:

1. Manual Update

To update your drivers manually, you’ll first need to determine the type of graphics card you have. If you’re using Windows, you can do this by opening the Device Manager, expanding the “Display adapters” category, and noting down your graphics card details.

Visit the manufacturer’s website (NVIDIA, AMD, Intel, etc.) and look for the appropriate driver for your graphics card model. Download the latest driver, then follow the installation instructions provided on the website.

2. Automatic Update

If manually searching for drivers seems like a daunting task, there are software options available that can do it for you. Driver updating tools can automatically identify the system’s drivers that need updates and install them for you.

3. Rollback Drivers

If updating the drivers doesn’t resolve the DayZ Bios Error 0x00050009 or causes additional issues, you can rollback your drivers. This process reverts the drivers back to a previous version that was functioning correctly. You can do this by going to the Device Manager, right-clicking your graphics card under “Display adapters”, and choosing “Properties”. From there, navigate to the “Driver” tab and click “Roll Back Driver”.

Remember to restart your computer after updating or rolling back your drivers. This action ensures that the changes take effect. If you’re uncomfortable performing these steps, consult with a professional technician.

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Fix 6: Adjust Firewall and Antivirus Settings

Sometimes, overly restrictive firewall or antivirus settings can cause the DayZ Bios Error 0x00050009 by blocking the game’s connection to the internet. Let’s see how to adjust these settings:

1. Add an Exception to Your Firewall

Your system’s firewall may mistakenly identify DayZ as a potential threat. To rectify this, you can add DayZ as an exception. Here’s a general guide, though the exact steps might vary based on your operating system:

  • Go to the Control Panel.
  • Click on ‘System and Security’, then ‘Windows Defender Firewall’.
  • Click on ‘Allow an app or feature through Windows Defender Firewall’.
  • Click ‘Change settings’, then ‘Allow another app’.
  • Browse for the DayZ.exe file, add it, then click ‘Add’.
  • Make sure ‘Private’ and ‘Public’ boxes are ticked, then click ‘OK’.

2. Adjust Your Antivirus Settings

Some antivirus programs might also interfere with DayZ. You can either temporarily disable your antivirus while playing or add DayZ to your antivirus’s exception list. The exact process differs per antivirus software, so refer to the user manual or online guides.

3. Enable UPnP

Universal Plug and Play (UPnP) allows devices on your network to discover each other, a feature that can help with online gaming. Check your router’s settings to see if UPnP is enabled. If not, consider turning it on.

Remember, altering firewall and antivirus settings could potentially expose your system to risks. Always make sure to understand the changes you’re making and re-enable your antivirus software when finished playing.

By addressing these settings, you should hopefully resolve the DayZ Bios Error 0x00050009 and be back to gaming soon.

Fix 7: Reconfigure Game Settings

Sometimes, inappropriate game settings can cause the DayZ Bios Error 50009. If you’ve tried everything else and are still encountering the error, it may be time to reconfigure your DayZ game settings. Here’s how:

1. Modify In-Game Settings

Start the game and head over to the settings or options menu. You may need to tweak your graphics settings, reduce your screen resolution, or adjust other performance settings. These changes could potentially fix compatibility issues causing the error.

2. Run the Game as Administrator

Sometimes, running the game with administrator privileges can resolve issues. Find the DayZ application file (DayZ.exe), right-click on it, select ‘Properties’, and then navigate to the ‘Compatibility’ tab. Here, check the box that says ‘Run this program as an administrator’ and click ‘Apply’ and then ‘OK’.

3. Use Compatibility Mode

If the game is not compatible with your current operating system, running the game in compatibility mode might help. In the same properties menu where you selected ‘Run this program as an administrator’, you can also check the box for ‘Run this program in compatibility mode for:’, and then select an older operating system from the drop-down menu.

4. Reset Game Configuration

Finally, you may need to reset the game configuration entirely. This action can usually be done from the main menu of the game. Please note that this will revert all settings to their default values and remove any customizations you have made.

Reconfiguring the game settings can sometimes solve complex issues like the DayZ Bios 0x00050009. It’s worth giving it a try when other solutions don’t seem to work.

Fix 8: Update Operating System

One possible reason for encountering the DayZ Bios Error could be an outdated operating system. Therefore, keeping your OS updated can be crucial. Here’s how to do it based on your system:

1. Windows Users

For Windows users, go to the ‘Settings’ menu, click on ‘Update & Security’, and then click ‘Windows Update’. If there are any updates available, you’ll see a button to ‘Download and Install’. Click on it and wait for the process to complete, then restart your computer.

2. macOS Users

Mac users should go to the ‘Apple’ menu, click on ‘System Preferences’, and then choose ‘Software Update’. If updates are available, click the ‘Update Now’ button. The system will download and install the updates. You might need to restart your computer for the changes to take effect.

3. Linux Users

Updating Linux varies based on the distribution you’re using. Generally, you can use the package manager from the command line. For example, Ubuntu users might use ‘sudo apt-get update && sudo apt-get upgrade’.

Remember, before any significant update, it’s a good practice to back up any important data to avoid potential loss. Once your operating system is updated, it could potentially resolve the DayZ Bios Error 0x00050009 error. If the issue persists, don’t hesitate to seek help from professional technicians or the game’s support team.

Preventing the DayZ Bios Error 50009 | 0x00050009

Prevention is always better than cure, and the same applies to gaming errors. While the DayZ Bios Error 50009 | 0x00050009 might seem unpredictable, there are measures you can take to lessen its likelihood of occurring. Here are some prevention tips:

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1. Keep Your System Updated

Keep both your operating system and your drivers updated. Regular updates often include fixes for bugs and compatibility issues that could potentially lead to the DayZ Bios Error. Set your system to update automatically if possible.

2. Regularly Update DayZ

Ensure that your game is always up-to-date. The developers often release updates and patches to fix common bugs and errors. Automatic updates can usually be set in your gaming platform settings.

3. Maintain a Stable Internet Connection

As DayZ is an online game, a stable internet connection is essential. Consider using a wired connection when playing to prevent connection instability that could trigger the error.

4. Use Compatible Hardware and Software

Always make sure your system meets the minimum requirements of the game. Using incompatible hardware or software could lead to various issues, including the DayZ Bios 0x00050009.

5. Avoid Simultaneous Heavy Applications

Running multiple heavy applications simultaneously can strain your system and lead to errors. If possible, close unnecessary applications while playing DayZ.

6. Regularly Scan for Malware

Malware can cause various issues, including gaming errors. Regularly scan your system for potential threats and handle them accordingly.

While these tips can help reduce the likelihood of encountering the error, it’s always good to remember that occasional errors and bugs are part of the gaming experience. When they occur, patience, persistence, and a bit of troubleshooting can go a long way.


In conclusion, the DayZ Bios Error 50009 | 0x00050009 can be a nuisance, but it’s surmountable. As gamers, we are no strangers to troubleshooting and challenges. With the detailed fixes shared in this guide, you’re now equipped to tackle this error head-on. Don’t forget, regular system and game updates, along with good gaming habits, can prevent such issues. At times, patience is your best friend, especially if it’s a server issue or a bug awaiting a patch. So, let’s gear up, get those fixes in place, and dive back into the thrilling world of DayZ. Happy gaming, everyone!


Q1: What is the DayZ Bios Error 50009?

A1: It’s a common error that players face, often due to connectivity issues or incompatible software or hardware configurations.

Q2: How can I fix this error?

A2: There are various fixes including reinstalling the game, updating drivers, checking server status, or even adjusting firewall settings.

Q3: Could the error be from DayZ servers?

A3: Yes, it could be a server issue. In such cases, patience is needed until developers fix the problem.

Q4: Is contacting DayZ support helpful?

A4: Absolutely. If you’re unable to fix the error yourself, DayZ support can provide guidance or even a solution.

Q5: How can I prevent this error from recurring?

A5: Regular system and game updates, maintaining a stable internet connection, and using compatible hardware can help prevent this error.

Q6: Does the error occur only on a specific platform?

A6: No, the error can occur on any platform where DayZ is available, including PC, Xbox, and PlayStation.

Q7: Will changing game settings resolve the issue?

A7: It might. Certain configurations can cause compatibility issues, so tweaking your settings may help.

Q8: What if none of the fixes work?

A8: If none of the fixes work, consult a professional technician or the game’s support team for further assistance.