After upgrading my phone to the 47.2.A.4.45 build, I'm experiencing a very specific glitch. These are the steps to reproduce it:
- disable the screen lock (it must be set to "None");
- lock the phone and then unlock it;
- lock and unlock it again.
The display then gets completely frozen (except for the notification bar): whatever app I was using appears unresponsive, and if it was a browser, its content gets all black (tested on Chrome and Firefox).
The only ways to unfreeze the display are:
- open any notification;
- open the Settings app from the notification drawer;
- press Apps (or Home, if you're not within the app drawer).
The weirdest part of this glitch is that, as I mentioned before, the apps themselves are not actually frozen, they just look like it. This can be proven by using whatever app has some scrollable content (e.g. Facebook):
- check whatever content the app is showing at the moment;
- lock and unlock the phone twice (to trigger the glitch);
- try scrolling down (any new content won't show up);
- press Apps and then Back.
When the app gets displayed again, you will notice that it's showing the new content (e.g. new posts): you were actually scrolling down within the app, it was just the display that looked unresponsive!
This gets incredibly annoying when I'm checking for any new notifications or what time is it, because after I've checked the phone twice and then I have to check something else, the app drawer "gets unresponsive" and I have to press Apps and then Back every time (since you're already within the app drawer, pressing Home does nothing).
I mentioned earlier that the glitch happens only when there's no screen lock. By setting up swipe, PIN, fingerprint scanner, etc. the glitch doesn't occur, but I don't think I'll ever get used to swipe to unlock the phone...
And by the way, I went through safe mode, a hard reset, and also software repair via Xperia PC Companion (which restored Pie, not Oreo), but the glitch is still there.
Is anyone else able to reproduce it? Or is there something wrong with my phone?
Thanks in advance.
