[I am posting this in the general section just in case people from other vendors are having the same problem] Last night I forgot to plug in my phone, and due to the idle power consumption it died. Usually not a problem, but now when I try to restart it it brings me to my lock screen. In the lock screen, the top bar is not visible. When I put in my swipe code, the screen goes black. If I hold the side buttons I get the power options (Silent Mode, Restart, Power Off, etc). Occasionally, I can get the sound bar, and sometimes the top bar with only the battery indicator to come in. I have tried restarting multiple times (with the power options / with pulling out the battery), but to no avail. I also tried restarting without the SIM card. The first time I tried, the OS worked without a hitch (other than not having the SIM card). Silly me, I restarted it, and now it has the same error with and without the SIM card. I think I installed an official update about two weeks ago. I run Ubuntu on my laptop, and I have Android SDK two months ago, but only used it briefly two months ago. I have not rooted the phone. Has anyone had this problem before? Or does anyone have a suggestion of what to do?