Try these steps:

1. Check the device signal in the app. If it's only 1-2 bars, move to a spot with better signal and try again

2. Check if the camera is facing a wall, glass, or strong light reflection

If the issue persists:

Please contact support with a recording of what happens when you try to adjust it.

If you have any other questions, please don't hesitate to contact eufy Support Engineers for further assistance.