---
title: Why did the Wave Firmware Downgrade to an Older Version
description: Occasionally, your Sidos Wave may downgrade when switching between projects. This is expected behavior and ensures compatibility with older surveys.
---

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# Why did the Wave Firmware Downgrade to an Older Version

#### **Understanding Wave Firmware Downgrades**

Occasionally, your **Sidos Wave** may downgrade when switching between projects. This is expected behavior and ensures compatibility with older surveys. However, **your Wave will continue to function without issues on all projects.**

### **FAQs**

### **Q: Why did my Wave downgrade?**

**A:** If you're working on a survey (QR code) created before **February 11, 2025**, the Wave will adjust its firmware to match the original firmware used for that QR code. This ensures the data collected remains consistent and compatible with that survey.

### **Q: Will my Wave running older firmware still work with new projects?**

**A:** Yes, your Wave will still function. It will update its firmware automatically to maintain compatibility with a new survey.

### **Q: If my wave automatically downgraded to older firmware, how do I upgrade it again?**

**A:** Once downgraded, the Wave will remain on the older firmware until you create and use a new QR code. To upgrade your Wave back to the latest Micro Apps firmware:

1. **Create a new survey (QR code).**
2. **Scan the new QR code** with your wave connected to your mobile device—it will automatically upgrade to the latest firmware.

For further assistance, visit [Upgrading Your Wave to Micro Apps](https://help.sidos.com/upgrading-your-wave-to-mico-apps).

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