android OS killing the battery on s4 mini

[jabbb]

Hello guys, so I posted similar thread long time ago when I first realized this problem.
So far I've fought with the company that sold me the phone and it has been 10 times at the maintenance, always returning with a statement that the phone works perfectly.
The positive thing is that now I know what causes the "android OS" malfunction.
It's whenever I make a phone call, android OS for some reason starts to kill the battery I can almost watch the percentage of the battery to go down.
I bought betterbatterystats app and the graphic tells me the phone hasn't been in deepsleep, also in the processor 810mhz time corresponds with the phone awake time.
It seems when I get my phone back from the maintenance and I leave the phone as it is, the problem won't appear so often.
Now I've only put some widgets which the phone already has in it and I haven't downloaded any apps or anything.
But apparently the widgets are already enough for the problem to start appearing more frequently.

So in short: I make a phone call with someone(have a conversation), android OS starts to take 30% up to 80% of battery consumption and 810mhz in the processor corresponds with the awake time.

The only solution for now has been restarting the phone, but I didn't pay 300

 

[Digital Controller]

Hi Jabbb, i have moved this thread to the Galaxy S4 Mini forum so that you can get some specific assistance.

Otherwise have you tried rooting the device and putting a custom ROM on it? Sounds like your general stock OS is just bad.

 

[jabbb]

Hi Digital Controller,
no I haven't tried to root the phone, since it would automatically cancel the guarantee.
Sounds crazy if you have to root your phone to make it work properly.
Can't they just fix the general stock OS at the maintenance?

 

[jabbb]

anyone else? anyone having the same problem?

 

[sam_p]

There no problem with OS. I have original OS. more than 50 apps and battery last for a day with at least 60 min talk and 1-2 hours app time
I use (Hiking monitor with GPS on), 2-3 small game, some IP Cam app, WhatsApp, Viber, use my phone as my TV remote, take average 3-5 pic a day, chack my email and other stuff.
I think you have an app that drain the battery.

 

[Westone]

Hi Digital Controller,
no I haven't tried to root the phone, since it would automatically cancel the guarantee.
Sounds crazy if you have to root your phone to make it work properly.
Can't they just fix the general stock OS at the maintenance?

Saferoot will not set the Knox bit, and it gives you the freedom to kill and / or uninstall any apps you want. It does NOT give you the ability to flash a custom ROM. This is what I have done on my mini and it has worked out fine, improving performance and battery life.