Long ago I have decided not to buy any Nokia phone because I had so many problems with Nokia phones. I bought the Nokia Lumia 920 two days ago because I thought that Nokia will try its best to solve all problems with the new system and work hard on a phone that will save Nokia. Unfortunately I was wrong. MY phone turns off completely by itself even though the battery is full. That is not the only problem. WHAT IS WORSE IS THAT I CANNOT START THE PHONE NORMALLY BY PRESSING THE POWER BUTTON. After searching the net I found that I have to press the two volume buttons and the power button at the same time to start the phone. Is that possible with a new costly phone? Please help.