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From a root terminal on your device: dumpsys batterystats | grep "Start clock time" That will give the date/time of when the device was last disconnected from the charger (while fully charged), rather than the time since, but comparing to the current date and time is easy enough. I did come up with a more complicated command you could save to a script to ...


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Sure, my android cellphone Galaxy S2 has the function to stop charging when it's full. So you don't need to disconnect all time. Source


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MyTracks is a fairly power hungry app, because it does lots of things as well as recording a track. eg it shows maps, and graphs, and gives voice announcements etc. For just recording a track, a simpler app would be better. I recommend GPS Logger for Android, which aims to be more battery effecient. It has lots of settings which can save battery power. ...


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Turn off always on monitoring Apps, like the fitness applications. Google Fit has a High Precision mode that eats more battery. Also turn off "Ok Google": Configuration → Idiom and Text → Google voice dictation → Ok Google detection → Turn off all, or at least the "from any screen" config. Turn off any other monitoring App you can think about.


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This is radical but very useful if you are in a remote region without cellular network or in an crowded event where the network capacity isn't enough for everybody: turn off your chips. Go to Configuration → SIM Cards → uncheck all your cards. If you have a multi-chip phone, turn off one your secondary chip that it will help.


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That's a known bug in android where there is no real solution for, you live in a zone with bad reception or just in between antennas. Possible solution are: moving. Or, set your phone to 2G networks only, certainly at night. I ALWAYS put my phone on flightmode at night... if you are rooted you can use an app for that: 2G 3G 4G switch I read the bug is even ...


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Finally I found the answer to my problem! I took my phone to another expert and he told me that the Baseband IC is gone and it is a hardware problem. He could fix it if I can get him the IC as it is not available in our markets because of being a rarely used korean phone. This thing is confirmed by another forum post here: ...



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