I recently brought the Sanyo Zio form Cricket wireless like 3 months ago. Well yesterday at the top of my phone it kept saying"New upgrade." Or something like that. So i download it because it mandatory to download it for my phone. So when I download it, my screen turned black but the LED lights still come on when i charge it. I trid to press the power button while it charges and everything. Everytime when i press the power button, it always power up then turns right back off. Is my barrety burnt out now?? Is that why my phone keeps turning off when it loads?? Please help