I have checked there is no issue with the network provider. When I checked found out that in Samsung phones this is general issue . Solution is to clear ur phone app cache , network reset and restart the phone after that this is not happening.Anyon...
Even i faced this issue, after few days green line Will become permanent. If its under warranty then its better to contact service center they vl replace the screen .
You mean to say that green colour camera icon. It means that your camera is currently being accessed. If you will be in call you can see the mic icon there