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I have a phone, 5months old, ICEPLUS2 Cloudfone Android. Hmm, have this problem, idk in battery or in system. When I turn on my phone, it turns on but just shows the opening like "samsung", or "cloudfone" then turns off. I try to turn it with charger plugged, it turns on and I unplugged it and after a few seconds, it turns off automatically. 88% then it goes 0!% and the "5 seconds and phone will shutdown" shows up. I observed that it only uses one percent before it turns off. I feel like the 100% showed in the battery bar is only one percent but the battery is full. IDK, I'm pretty confused right now. Can anyone help me?

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