When I "unlock" the Lock Screen my N9 Turns completely black and It doesn't light up but the touch screen works + the Lock screen shows time etc when I lock it again. Only happens when the phone is in power saving mode/ low brightness. It's not a big problem for me to turn the brightness a bit up but the battery dies quicker
I am now on the same. Restart my device the screen keeps black but the Phone start fine. After a few seconds is showing time and billboard screen. Double tap to unlock make the screen black again.
Nobody have a better solution then reflash? i have ssh access to the phone
Update:Takes a lot of time but now the UI is back. Normaly i had Bootscreen then UI and after that, a minute later Billboard screen.
Now i had nothing, first was Billboard Screen and Minutes later the UI.