The most affected players are the ones using consoles like Xbox and PlayStation. That being said, if you are facing the same issue, follow along this guide to fix this Dayz Bios Error on your device.
How to Fix Bios Error in Dayz

Check Internet Connection
Restart the Console/PC
While this might look like a simple fix, it is really effective, as many Reddit users were able to fix the Dayz Bios error by just restarting their Console and PC. Restarting the device and relaunching the game refreshes its connection with the server. This fixes minor glitches and bugs that could be the reason behind this error.
If you are on the console, power cycle the console and check if the error is fixed.
- Press and hold the power button of your console for a few seconds until the power indicating light is off.
- Next, remove the power plug and wait for 1 minute.
- Power plug back in and restart your console.
- Now launch the game and check if the error is fixed.
Check Dayz Server Status
Also, often there are some regions where the servers could be active and running while temporarily closed for the rest. You can check the Dayz Server status to confirm the possibilities. In such a case, you will have to wait for the time until developers fix the issue from their end.