I have been running into an error the last week - my phone shut off (crash?) and it wasn't until I think a complete battery drain (about 2.5 - 3 days) that I could plug it in to power it back on. After powering it up, it lasted a day and a half or so, regular use, but then it died again. I first thought it might be a battery problem, but the weirdness of it made me think it may actually be related to a software error of some type: an app - or more likely system process - crashes, making the hardware buttons unresponsive and screen disabled.
Has anyone else seen or heard of this??
Edit: I should note that i've attempted the two finger restart a number of times, to no avail. I even tried the three finger, but no dice.