Unlike iPhones, which use green and orange dots to indicate functions, Android smartphones use a single icon for all functions. A green dot means that one of your open apps is using the device's microphone or camera. As long as you're using the camera, this isn't a problem. However, it can become problematic if you've forgotten to grant an open app access to the camera or microphone.
What should you do if you see a green dot
?
According to Samsung, you can quickly find out which app is using the camera or microphone in four easy steps. As soon as a notification appears, an icon indicates whether the notification concerns the camera, the microphone, or both. This icon then shrinks to a dot in the upper right corner, next to other active indicators.
For more information, swipe down the notification bar and tap the dot to expand it. This will open a dialog box showing which resources (camera, microphone, or both) are being used and which app is using them. If you grant the app access, you don't need to do anything else.
However, if you don't recall granting access to a particular app, open its settings and disable the relevant permissions. If the notification shows an app you no longer use, you should remove it from your device as a precaution.
