I already updated my Z Ultra until the latest version. So one day my phone died because low battery. When I tried to turn it on, it shows that android was optimizing. I think that fine. So I waited until all apps are optimized. After all apps optimized, phone restarted again and starting to optimizing android again. I waited it from midnight until evening. Then I resetting my phone. Im scared to updating my phone again to lollipop. Are that fine if I update my phone to lollipop?
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