Lumia 1020 power down after 8.1 update

[WPCentral Question]

I have just downloaded 8.1 into my 1020 and find that my phone shuts itself off overnight and then I have to soft start and reset times and dates afterwards

 

[sarge tyo]

Did you update via the developer app? If not, what is your carrier? I have the 1020 but still have no received the update.