https://community.sony.it/t5/z-series/light-uncontroled/m-p/3621489#M120420 <P>I have a Sony Xperia Z2 phone. In the last 2 months, the backlight has been rising and falling uncontrollably. Light flickers and vertical lines appear in the middle of the screen and disappear. This is starting to happen. I've erased a lot of applications, the situation hasn't changed. Decreased in safe mode but not over. I returned the device to the factory standards. Nothing has changed. The device can be the battery for 3 years is the reason?</P> Thu, 13 Dec 2018 06:55:26 GMT Tobayaski 2018-12-13T06:55:26Z https://community.sony.it/t5/z-series/light-uncontroled/m-p/3621489#M120420 <P>I have a Sony Xperia Z2 phone. In the last 2 months, the backlight has been rising and falling uncontrollably. Light flickers and vertical lines appear in the middle of the screen and disappear. This is starting to happen. I've erased a lot of applications, the situation hasn't changed. Decreased in safe mode but not over. I returned the device to the factory standards. Nothing has changed. The device can be the battery for 3 years is the reason?</P> Thu, 13 Dec 2018 06:55:26 GMT https://community.sony.it/t5/z-series/light-uncontroled/m-p/3621489#M120420 Tobayaski 2018-12-13T06:55:26Z