Front Camera not working - Samsung galaxy M30

[TarunThadani]

Unable to open front Camera in my samsung m30. Getting below error-screenshot attached "You cannot use more than one application that uses camera at the same time. Camera will close" I can see 2 additional system app - "Camera Test" and "Face" which has access to Camera and I cannot deny the permission as it is disabled. I suspect if these apps are already accessing the camera and thats why front camera is not working.

[Sidhabhi]

Perform reset apps preferences once

settings>applications>click 3 dots at top right corner>select reset apps preferences
or
check recently installed apps

[TarunThadani]

still not working

[Samsung_Support3]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please perform the below mentioned steps to resolve the issue:

* Clear camera application data.
Settings >Apps >Camera >Storage >Clear Data.

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[TarunThadani]

why you guys are replying same thing to all the similar posts. These steps were aplready applied but issue not fixed. Please come up with exact solution.

[DragCdar]

having the same problem with the same device

[AnshulDogra]

facing same problem