https://community.sony.com.mk/t5/z-series/screen-goes-black-when-making-a-call/m-p/3622720#M120581 <P>1. Screen goes blank while making calls.&nbsp;</P><P>2. While selecting 4g network the signals becomes very poor then I have to opt wcdma/gsm network.&nbsp;</P><P>3. while receiving calls the outgoing voice is not clear only when I put mic earphone it works.&nbsp;</P> Mon, 24 Dec 2018 08:19:12 GMT Hi1111 2018-12-24T08:19:12Z https://community.sony.com.mk/t5/z-series/screen-goes-black-when-making-a-call/m-p/3622720#M120581 <P>1. Screen goes blank while making calls.&nbsp;</P><P>2. While selecting 4g network the signals becomes very poor then I have to opt wcdma/gsm network.&nbsp;</P><P>3. while receiving calls the outgoing voice is not clear only when I put mic earphone it works.&nbsp;</P> Mon, 24 Dec 2018 08:19:12 GMT https://community.sony.com.mk/t5/z-series/screen-goes-black-when-making-a-call/m-p/3622720#M120581 Hi1111 2018-12-24T08:19:12Z