After software update, you may encounter an error message when you try to use the camera for taking videos or pictures on your TRX7 CS Pro.
You may follow the steps below to resolve the issue:
1. On your TRX7 CS Pro, go to Android Settings.
2. Select Apps & Notifications
3. Tap TRX Camera
4. Scroll up then select Advanced
5. Scroll up, tap Display over other apps
6. Slide the button to the right to allow display over other apps