Now, the owner is an old man who doesn't even know what "root" is, so I highly doubt he did anything which could brick it. He knows I often repair phones for other coworkers so he asked me to take a look at it.
Before I tear into a phone I always look online to see if anyone else has had a similar issue. I haven't seen anything about this yet and I haven't encountered it myself either. The phone is in a rubber Otterbox skin and looks to be in great shape. It does not appear to have ever been dropped. Has anyone heard of these just spontaneously failing to power on? Has a fix been found?
I haven't looked inside yet but the phone looks great externally and under the battery door. The battery might be ever so slightly bulging but it's hard to tell just by looking at it. It's the only thing I've detected that might be out of order, so I'd like to try another. Too bad I can't find a spare locally.
Should I be able to get any kind of feedback on USB power without the battery inserted at all? Can someone try booting or entering recovery with the battery removed?