Just scraped in under the 1 year, so I've left it with them to fix - along with a copy of your instructions! Fingers crossed...

Thanks for persevering with my problem. I don't have any data in the device, it is all in cloudland. That is the good news. I have downloaded Mark's toolkit, but can't do the next step of going to settings on my Nexus because it won't go to the homescreen so I can change the settings as recommended. Those coloured balls just keep spinning around. I left it overnight and they were still spinning in the morning.

I have tried all the options on the bootloader screen (version 4.2). Start just gets me the spinning balls; Recovery just gets me an exclamation mark and a dead robot (with nowhere to go).

Any wisdom appreciated.

Have been using my Nexus happily for over a year, but suddenly having problems. When I go to open facebook, the blue screen comes up, but after a short thinking time it just closes. Have uninstalled and reinstalled the app with no improvement. Also, starting at the same time there is the issue that message keep coming up that youtube 'has stopped' as well as linkedin (even when not doing anything related to these apps). Yes, I have rebooted, but it hasn't helped.

Emails and other apps work fine.

Can anyone help?  thanks Cathy