Hi Guys i have a good news for 4.1.2 user.
found the solution for the Bluetooth reboot issue.
Just follow this process
Settings >Power Saving (Under Device) > select close option and that's all.
It's working for me hope this will help you all......
May be you are right. but i have no viber app. in my phone. but the applications i have are Facebook, skype, true caller and WhatsApp. so can you suggest me which application should be uninstall from my phone??
Thanks in advance.....