[Q] "black screen of death" and first step to solution
Many of you know that nexus 4 is experiencing random "black screen of death". What happens is that the phone freezes while in sleep (stand-by) for long time, for example over night. It is not a complete freeze, as the notification light keep blinking (if there are notifications); when you call the phone the caller hears a proper "ringing" tone (so the phone is not off), but the nexus 4 itself doesn't make any sounds. Alarms also don't sound, which makes Nexus 4 a horribly unreliable alarm clock.
The only way out of the freeze is holding the on/off button for 10 sec, which turns off the phone, and then holding it again for usual 1-2 sec to turn the phone back on.
What I discovered is that these freezes happen 1-3 times a week, but only if I have pattern password on lock screen. When I turn password off (so I have the "slide to unlock"), freezes are gone. Maybe this information will help others, or provide some insight to a complete solution to the problem? Does anybody have other experiences with black screen of death on their nexus 4?
Just a note, I have stock but rooted nexus 4. Internet reports that these problems happen on stock unrooted, stock rooted, custom roms, even on phones freshly out of factory reset with no apps installed.
Here are some threads talking about the problem:
Google Product forum