I have been using Z1 for few months, this is the first time I got this problem
I have Du Battery Saver Apps, Last night before I slept, I set the mode to" Sleep mode" which means mobile data and wifi were off, and the battery was 71%
Usually I will not lose even 1% of battery when i wake up. but now the battery has reduced to 17% in just one night!
These are the screenshots of my Battery usage and Wakelock apps
You can see the graph that the battery was drasticly dropped
Can you help me with the problem...