Hello,
I bought my Xperia Z1 about a month and a half ago. I haven't put my Xperia Z1 in water and I didn't drop it on the floor so that's not the problem. But whenever I want to unlock the phone I press the powerbutton but 10 seconds later it responds or not at all. When the phone is finally unlocked and I want to lock it again the button works perfectly, so the problem is only with unlocking. Also when I have an incoming call when the phone is locked the screen doesn't light up, so I can't answer it. Besides that, and I'm not sure if those two things are related, when I turn my phone 90 degrees the screen doens't always rotate automatically, same when I take a picture with the camera. Both problems showed up at the same time so I don't know what's going on exactly, but it's getting annoying since I've only had the phone for a month and didn't drop it or put in under water. I hope someone recognizes this problem and could tell me what's wrong with the phone.
Thanks in advance
I uninstalled a couple of useless apps and the button responds like it should be. 