Thanks a lot brother. Sure I will try all these steps and will see if my problem resolves or not.A very big thank you to you.

Hey Thank you for your advice.it would be great if you could provide more description about your solution, As I dont know the firmware installation process. Could you please help me on this?

maybe you haven't read my post. Go through it again. Did that step already.

Ya, the point is that they are suggesting me to Replace the Hardware which is not the solution. As I found many user with the same problem and after replacing the hardware they issue is still not resolved. I am expecting a software solution for the s...

Already visited. They tried Resetting everything and Software Update for my phone, But still it's not resolved.