Vibrate with No Reason

[Sabatial]

Hi! I bought my XZ1 this month and update my system version to the lastest one. The phone sometime vibrate with no message sended and even in the Do Not Disturb condition. Second, when the light condition around me changed, the screen will change its brightness strangely, it will blink but not turn bridgter smoothly. I am a fan of SONY so I hope you can change these problems and get better!

[najodleglejszy]

@Sabatial regarding the changing brightness, it sounds to me like you're describing a feature called Qualcomm Assertive Display https://www.qualcomm.com/news/onq/2015/02/20/assertive-display-power-efficient-technology-thats-easy...

[Sabatial]

Actually, I don't think this is a normal feature. Instrad, I believe this is a bug. When I get the phone out of the light, changes in screen brightness are unnatural, just like it is stuck. Many people buy XPERIA with Oreo have meet this problem and some of them guess this is because the sensor is fail.