batry was drained verry fast in m3s

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2017-08-25 09:36

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battery was drained verry fast in m3s after  stabulel update 6. tell me  how to avoid this  and jio 4g voice app also not working  in that app it is showing your phone is volte phone  use dila for calls but in stabulel 6 not support  to volte.how to swallow this problem  please  tell me