The WTH updates itself over the internet, and it keeps its sensor board in step at the same time. Each update is downloaded directly to the hub and installed automatically, so your temperature monitoring stays current with the latest improvements. You can start an update from the hub's touchscreen or from the LF Audio AuralSync app.
Before You Update
The hub downloads firmware over the internet using your home WiFi network. You provide that network to the hub through the AuralSync app once, and the hub remembers it for future updates. See Getting Started with the app if you have not paired your phone to the hub yet.
Before you begin:
- Confirm the hub has been given your home WiFi network through the AuralSync app.
- Make sure that WiFi network has working internet access.
- Keep the hub powered the whole time. Leave the vehicle in a state that keeps the hub on (remote turn-on active) until the update finishes.
Do not remove power from the hub while an update is running. An interrupted update can leave the hub in an incomplete state. Wait for both progress bars to finish and for the hub to restart on its own.
Updating from the Hub
You can start an update directly on the hub's touchscreen:
- From the home screen (titled TEMPERATURES), tap the gear icon to open Settings.
- Open the System tab.
- Tap Start OTA Update.
- Confirm when the hub asks you to begin.
- Watch the update screen while the hub downloads and installs the new firmware.
- When it finishes, the hub restarts on its own and returns to the home screen on the new firmware.
Reading the Update Screen
The update screen shows two progress bars: one for the hub and one for its sensor board. The hub downloads the new firmware first, then passes the sensor board's portion across to it, so both bars fill as the update moves through its stages.
Each bar shows a short status word so you can see exactly where things are:
| Status | What it means |
|---|---|
| Ready | The step is prepared and about to begin. |
| Waiting | Waiting for the previous step to hand off. |
| Downloading | Pulling the new firmware from the internet. |
| Transferring | Sending the sensor board's firmware across to it. |
| Verifying | Checking the downloaded firmware before installing. |
| Complete | This part finished successfully. |
| Up to Date | Already on the latest version, nothing to install. |
| Failed | The step did not finish. See the tips below. |
A typical update finishes in a few minutes, depending on your WiFi speed. If a bar shows Failed, confirm your WiFi has internet access and try again. A failed update does not harm the firmware already on the hub, so it is always safe to retry.
Updates hold up on a weak connection. If the download is interrupted partway, the hub picks up from where it stopped instead of starting the download over, and an attempt that fails no longer prevents the next one from working.
Force Update
If the hub is already on the latest version, a normal Start OTA Update reports Up to Date and stops without reinstalling. That leaves no way to fix an install that finished in a bad state.
Force OTA Update re-installs the current version even when the hub is already up to date. Use it if something looks wrong, if an earlier update was interrupted, or if LF Audio support asks you to.
- Open Settings > System.
- Tap Force OTA Update.
- Confirm, then watch the same update screen as a normal update.
The two progress bars and status words work exactly as they do for a normal update, and the hub restarts when it finishes.
Updating from the App
You can also start an update from the AuralSync app instead of using the hub's touchscreen. The app uses the same home WiFi network you provided to the hub, and it shows the update progress on your phone. For the full app walkthrough, see Firmware Updates in the app.
Checking Your Firmware Version
To see which version your hub is running, open Settings > System. The System tab lists the current Firmware version along with the hub's other identity details.
To see what changed in each release, check the LF Audio firmware changelog. It lists the latest published version for every LF Audio product so you can confirm whether an update is available for your hub.
The System tab also lists a separate Sensor board version. The hub and its sensor board update together, so after a successful update both should reflect the newest firmware.
Related Articles
- System Diagnostics: the full System tab field reference, including firmware and sensor board versions.
- Troubleshooting: what to do if an update will not start, will not connect, or reports a problem.