My Nexus 10 froze solid while fully charged (or close to it) and operating on AC power. I'd been charging it while using it. First it got slow, then it froze, then the screen went dark, and then nothing. Holding the power button doesn't help, nor can I get into the recovery area. The only sign of life is that when I plug it in and press the power button, I see a full-battery icon. My suspicion is that memory is completely full so it's frozen and can't recover. In the days of removable batteries, I'd have removed the battery, waited a bit, then rebooted, but that's not so easy with the Nexus 10.

Since upgrading to Android 5, the battery has been draining fast, so I thought maybe if I waited a few days, the battery would drain to zero and that would provide a reset. But it's been 2 days and I still see the full-battery icon when I plug it in and press the power button - which either could mean the battery is still full because it's that frozen, or there is a serious hardware problem and it's not working at all.

So I came here to buy suction cups and a spudger to open it up and remove the battery long enough to reset it. If it's a hardware problem, that won't help, but it seemed worth a try. And if something else obvious is wrong, like a burned out capacitor, I'll see it.