Default [q] cannot turn on bluetooth

I am using Samsung GT-S6012 INDIA with 4.0.4 ICS and I recently upgraded my device to 4.1.2 Jelly Bean of EUR region(also tried BALTIC region) since it was not released in India.
The problem I am facing is that I CANNOT TURN MY BLUETOOTH ON after the upgrade. But when I reflash my ICS rom it is working fine.
But I really need Jelly Bean on my mobile since the JB kernel is supporting swap function. Please any one help!!!