Power button and volume down while plugged into the charger
Sent from my LG-D801 using Tapatalk
3- take off the battery and press the power button for about 30 seconds.
It happened to me and I pressed all the button like a ****** and it worked again !
There's some issues with the phone not waking up from standby in this preview. May have to revert back to 8.0 for now. The nokia update can't come fast enough.
