Hi all

after i updated my Android from 4.1.2 to 4.2.2
i am not able to use the handset for any internet calling like skype or viber
i have to open speaker phone to be able to here the one i am calling, the headset, handset is completely dead.
it works fine with normal calling but nothing with internet calling.

my phone is samsung galaxy mega 5.8 duos

any advice
thanks