Hi All,
Since upgrading to lollipop around 2 weeks ago on my Z1 compact, my battery life has been terrible. 2 days after the update and frustrated with battery life, I connected to the PC companion software ready to factory reset, to find another update, which has stopped the Facebook app destroying my battery, and actually seemed to fix my battery issue as I went back to getting 2 days out of a charge. Sadly this only lasted not even a week.
The last two days have been the worst. After work yesterday it ran completely flat (no warning - and phone barely used). I charged it up to 100%, disconnected the charger, and went to sleep. I woke up in the morning to 8% battery - the phone was IDLE. The next charge, my phone told me it had fullly charged, but when I disconnected the charger, it was only at 96%. It took another half an hour to reach 100%, which was at 1130am. By the time I got home at 630pm, my battery was down to 35%. It is now almost flat and I am going to have to charge it for the 3rd time in 24 hours.
Checking battery usage, Android OS, Android System, Telstra (carrier), and Setup Wizard are all excessively draining the battery (the Android OS is the worst one with battery usage at 30%). It won't let me disable any of these, I can force stop only the Telstra one but it starts again straight away.
Does anyone have any suggestions? I am so frustrated by this, and my phone is unusable at the moment.
**posted in the wrong forum initally, sorry**
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No, re-install will not always solve the problem.
I upgraded z1c from 4.4.4 to 5.0.2 the very minute this new firmware came out and I was very satisfied. Three weeks ago I upgraded the same phone to 5.1.1 and noticed obvious battery drain. I did a factory reset, re-installed the update, did another factory reset, and another factory reset (so, I did it twice after re-install), and I'm still facing the battery drain problem. It is not so severe as with some other people, but it is noticeable. For instance, I charge my z1c to 100% in the evening, set the alarm for the morning wakeup and switch phone to the airplane mode. Still 100% of the battery. In the morning I could see that battery dropped steeply to 90%. After I logged in to my mobile network the battery started to drop a bit slower but still faster than with Android 5.0.2. Then I erased PS4 application and Facebook and was happy to see that the battery usage improved. Alas! After a day or two, there was again another steep drop in battery usage. The battery usage graph in the phone settings doesn't give me much information about details of battery usage.
When compared to problems other z1c users have, my problem is not so big, but it is big enough for me to get frustrated.
I turned almost everything off when I'm not using it (wifi, 3g, 4g, BT etc.) except for the screen brightness because I can't see a thing on the screen when in the direct sunlight.
Today I haven't played with the phone much. In this picture (I hope you can see it), there are few sudden drops in the battery capacity. The first one from 100% do almost 90% is unprovoked. I did nothing. My phone was sitting on the table for the whole night.
The text in the picture is written in the Croatian language, but you can still understand what is happening.
I even thought about battery replacement in the service center, but, instead I'll save that money for another new mobile phone. Probably new Lumia with Win 10. I'm done with Android and its "improvements of the user experience".
P.S. Just look at the post sent on June 25, 2015 by user "mkte....@gmail.com" with the screenshots attached. The address is: https://code.google.com/p/android/issues/detail?id=165558. It looks almost the same as my problem.
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