https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441966#M78873 No problem. Glad we could help. Thu, 07 Jan 2016 04:02:04 GMT Phy 2016-01-07T04:02:04Z https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441961#M78868 The red line appearance flash 1-3second then stop. After a while, it flash again. Help me.. Is there something wrong with my phone.? Wed, 06 Jan 2016 15:17:03 GMT https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441961#M78868 Aaron90 2016-01-06T15:17:03Z https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441962#M78869 <P><A href="https://community.sony.co.uk/t5/user/viewprofilepage/user-id/696397">@Aaron90</A></P> <P>Have you exposed the phone to water?</P> Wed, 06 Jan 2016 15:27:16 GMT https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441962#M78869 Uliwooly 2016-01-06T15:27:16Z https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441963#M78870 1. Settings<BR />2. Developer options<BR />3. Turn them off Wed, 06 Jan 2016 15:27:52 GMT https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441963#M78870 Phy 2016-01-06T15:27:52Z https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441964#M78871 Boot on safe mode and check if you experience the same issue.<BR /><BR />How to boot on safe mode<BR /><A href="http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008" target="_blank">http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008</A><BR /><BR />How to boot on safe mode on Lolipop<BR />1. press and hold the power key<BR />2. once you get the pop up menu<BR />3. press and hold "power off"<BR />4. Boot on safe mode should become available Wed, 06 Jan 2016 15:28:10 GMT https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441964#M78871 Phy 2016-01-06T15:28:10Z https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441965#M78872 Really helpful info. Thank you so much. My phone OK now. Thu, 07 Jan 2016 02:11:56 GMT https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441965#M78872 Aaron90 2016-01-07T02:11:56Z https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441966#M78873 No problem. Glad we could help. Thu, 07 Jan 2016 04:02:04 GMT https://community.sony.co.uk/t5/z-series/my-sony-z2-screen-flashing-red-line-each-corner/m-p/3441966#M78873 Phy 2016-01-07T04:02:04Z