iphone 4 volume indicator problem

[shrgawi]

Hi guys,
I am facing a weird problem with my iPhone 4.
It happens to me frequently and is killing me. The problem is that the ringer indicator keeps popping up even though the volume control buttons are not pressed.
When it happens, I can only decrease the volume and the (+) button does not function at all. I tried restoring and updating to 4.0.1 several times, but once I install my apps it just happens after a while of using the iPhone. I tried installing different apps everytime, yet it happens.
Has anyone experienced this issue with iPhone 4?

http://www.youtube.com/watch?v=miChMRU3voE

 

[Benji222]

If you put the volume down to say half, does it automatically go back up when this happens?

This looks like a hardware issue to me. (Detecting a volume change when you are not changing it)

 

[shrgawi]

If you put the volume down to say half, does it automatically go back up when this happens?

This looks like a hardware issue to me. (Detecting a volume change when you are not changing it)

Yes sometime it does, sometimes it just stays where it is.
Mostly the case immediately appears after unlocking to home screen.