[Majin_Static]

I have a Cyan Lumia 920. Sometimes when I click the lock button to show my lock screen my back, home and search buttons wont be lit up and my screen is in super bright mode. Most times i just have to keep clicking the lock button over and over until it fixes itself. Other times its a full reset. Anyone else experiencing this or maybe know the cause? And just maybe... a fix?

[Philippe Maes]

I had the same problem. My screen would be in an "overdrive" brightness. After 2 or 3 sec my screen goes back to normal. It happens now and then... But since updating to portico I havent had the problem.

[Majin_Static]

I have portico as well. In fact, these problems plus my facebook problems all started after the update.