Recently i have installed an update in my zenfone2 model. After installing that update mobile is shutting down suddenly while working. At that time, the battery indicator is showing 0%. After keeping charger, when restarted immediately, then the indicator showed 55%. I dont know whether the problem is with the update or not. But my phone is not working properly and it happened thrice in 2 days. I have bought this phone recently not more than 4 months ago. What is the solution for this?