I've gotten this behavior when I forgot to set permissions properly after messing around with stuff in /system. You should be able to get into the tablet with ADB Shell and check them out. But I would be surprised if a google update would mess up permissions. So it's probably not your issue unless you were poking around in there like I was.Last night, the 25th, I updated my apps through Google Play. I noticed Google Drive being downloaded and didn't think anything of it. I don't know if that is part of the problem but this morning I can't access anything on my tablet. I keep getting process stopped unexpectedly in several processes namely keyboard, vending, acore, super-HD player,Launcher. I've searched a little to find that one of these is do to a conflict in my contacts but I can't do the suggested solution because I can't get into settings. Any suggestions on how to fix this? I'm ok with reflashing as a last resort. Thanks.