Exclamation [Q] G2 D80220D update - Skype, Viber, VOIP NOT WORKING

Hi there, after the update to kitkat version D80220D all voip apps not work any more.... same as on this video on youtube:

watch?v=zg4WEbh8tdE

Already tried factory reset same problem

My phone is ANEUWH LG G2 Europe Open 32GB, tried downgrade to this B version on storagecow:

Europe OPEN 32GB KitKat D80220B_00.kdz1662200KB

But then knockON do not work, knockOFF works

Also tried to disable VoiceMate and Hangouts didn't help....

Any solution to this? Thanks