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Q2: How to upgrade UVC30 to get more functions?
A: Please refer to the following steps：
1. Connect the UVC20/30 to the computer via USB.
2. Download and the Run “Yealink USB Connect” app on your computer.
Download link: https://www.yealink.com/product/yuc.
3. Go to "Update device".
4. Click "Check for updates" to automatically update the firmware to the newest
version.
5. Confirm the action.
Yealink USB Connect
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