So I have had my Lumia 920 since launch when last week the power button, camera button, and volume down button stopped working. It wasn't a huge deal since I could double tap to wake it up. But I got to thinking maybe a reset would fix my issue, so I went into the "about" section and reset my phone, but it only made it worse. Now my buttons still don't work, and I don't have all of the features of the Lumia black update either. I can only turn on my screen by plugging my device in or getting a text/call. Does anyone have an idea of how to force the Lumia black update so I can start using my phone again? Thanks for any help you can give.