Hello,i recently updated my Sony Xperia Z1 to android 4.4.4 kit kat from 4.2 and i have problems when i call /or i 'm called .The problem is that during the conversation the speaker makes some strange noises that ruin the conversation and i have some pauses in the conversation where i don't hear nothing.And the person who i speak with has the problem hearing me because of the microfone that has pauses
