## Introduction to Xiaomi Home Assistant
The Xiaomi Home Assistant is a powerful tool that allows users to control and monitor their smart devices, including air purifiers. However, after the 3.1 update, some users have reported issues with the air purifier switch being unavailable. In this article, we will explore the possible causes of this issue and provide step-by-step solutions to resolve it.
## Understanding the Problem
The issue with the air purifier switch being unavailable after the 3.1 update is a significant concern for users who rely on this feature to control their air purifiers. The problem can be described as follows: after updating the Xiaomi Home Assistant to version 3.1, the air purifier switch becomes unusable, preventing users from turning the device on or off.
## Reproducing the Issue
To reproduce the issue, follow these steps:
1. Update the Xiaomi Home Assistant to version 3.1.
2. Try to use the air purifier switch.
3. Observe that the switch is unavailable.
## Expected Behavior
The expected behavior is that the air purifier switch should be usable after the update. Users should be able to turn the air purifier on or off without any issues.
## Resolving the Issue
To resolve the issue, try the following steps:
1. Check the Home Assistant logs for any errors related to the air purifier switch.
2. Restart the Home Assistant core and try again.
3. If the issue persists, try resetting the air purifier device and reinstalling the Xiaomi Home Assistant integration.
## Conclusion
In conclusion, the issue with the air purifier switch being unavailable after the 3.1 update can be resolved by following the steps outlined in this article. If you are experiencing this issue, try the troubleshooting steps provided, and if the problem persists, seek further assistance from the Xiaomi Home Assistant community or support team.