I have a Nexus 4 Device. I had got 4.3 update in System updates about 15 days ago. But I didn't update that time.And now I want to update it so if I go and check for updates, its showing that your system is up to date, while I have 4.2.2 in my phone. Can you please tell me what should I do to get 4.3 update? please guide me.