How OTA Updates Work
The AuralSync app can update your device's firmware over the air (OTA). When an update is available, the app downloads the firmware and transfers it to your device over Bluetooth. The device then installs it and restarts.
Checking for Updates
The app checks for updates in two ways:
Automatic Banner
When you connect to a device, the app checks for available updates. If one is found, an update banner appears at the top of the device monitoring screen showing the new version number and release date.
Background Checks (Android)
If enabled in Settings > Firmware Updates, the app performs a daily background check for all your paired devices. If an update is available, you receive a notification with details about what's new.
You can enable or disable background update checks in the app's Settings tab.
Update Process
- Tap the update banner on the device monitoring screen (or the update indicator in device settings).
- The app shows a changelog with what's new — features, fixes, and improvements.
- Tap Update to begin.
- A progress bar shows the transfer status with an estimated time remaining.
- When the transfer completes, the device installs the update and restarts.
Keep your device powered on and your phone within Bluetooth range during the entire update. Do not close the app or turn off your device until the update completes.
Multi-CPU Updates
Some devices have multiple processors that each run their own firmware:
| Processor | Device Types | Description |
|---|---|---|
| CPU1 (Primary) | All WVC | Main controller — handles volume, sensors, mesh |
| CPU2 (Secondary) | All WVC | Bluetooth bridge — handles app communication, WiFi |
| Daughtercard | WVC-PRO-6 only | Additional channel processor |
When updates are available for multiple CPUs, the app shows them separately. They are installed sequentially — the base station coordinates the update order automatically.
Changelog
After an update, the app can show you what changed. The changelog is organized into three categories:
- New Features — new capabilities added in this version
- Bug Fixes — issues that were resolved
- Improvements — performance or reliability enhancements
The changelog is fetched from LF Audio's servers and displayed in the update banner.
Troubleshooting Updates
| Problem | Solution |
|---|---|
| No update banner appears | Your firmware is already up to date, or the device is not connected |
| Update fails mid-transfer | Keep the device powered on and close to your phone. Retry the update. |
| Device stuck after update | Power cycle the device. If the issue persists, contact support. |
| "WiFi credentials required" | Some updates require WiFi. Enter your WiFi SSID and password in Device Settings. |
Related
- WVC Firmware Updates — firmware update details for WVC hardware
- RTC Firmware Updates — firmware update details for the RTC