Power your phone during the update

[realwarder]

Just a warning... my phone somehow burned through > 50% battery during the update, which was higher than I expected.

You probably won't want the update to fail, so I'd plug your phone in.

(Before you all say that is obvious and we should always do that, there's no harm reminding people...)

 

[Guzzler3]

Good reminder. Just want to add, use the wall charger that came with the phone. Don't use a USB port on another system, as there is a slight possibility that the data initiation might "confuse" the update process.