A couple of days ago my Nexus appeared to be switched off. I restarted it and it came up with the "Type password to decrypt data" message.
Now I had never set this option, so I was confused, but I tried a bunch of passwords, all to no avail.
So I thought I'd bite the bullet and hard reset it.
I pressed power and vol up/down and up popped an image of the robot on its back, together with the Start and up/down arrows. So far so good.
But then I realised that none of the buttons would work.
I repeated this a couple more times and finally I got the option to start the reset.
Screen switches to the Google logo and stays there - forever.
I've now run out of options. Anyone else seen this and got through it.
btw I've not rooted it, or installed any other dev tools on it.