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[Q] 4.1.2 battery drain

23rd January 2013, 01:59 AM |#1  
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Hi!

So I have updated my unrooted Note 2 to version 4.1.2 and below describes what happened:

1. Battery drain very fast, can't even last 24 hours. The battery details show "Android System" chugging all my battery juices.

2. On 2nd day, I tried "Factory reset" on Settings menu but still my battery drains very fast by "Android System".

3. On 4th day, I installed Kies on my PC and did the "Firmware Upgrade and Initialization". Noticed an improvement in battery life but after 4 hours, I noticed "Android OS" is now taking his turn to chug all my battery juices.

4. On 5th day, woke up and noticed battery drained >20% by "Android OS".

5. 6th day (today), I did another "Firmware Upgrade and Initialization" on Kies and now I noticed "Android System" took over and took over >29% battery usage in under 1 hour.

6. Now, I am running "Firmware Upgrade and Initilization" for the 3rd time and is hoping for the best.


Question:
Should I root my device and downgrade to 4.1.1? Before update to 4.1.2, it can last almost 2 days.

Thanks for your help!!
 
 
23rd January 2013, 05:07 AM |#2  
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I had a similar problem and discovered that "gpsd" on my phone was causing the drain. This system also required other systems whiqh together used about 45% of the battery. The "gpsd" is the system samsung uses to track your phone (if you have enabed it). It did not cause this drain on my phone prior to the update.
I hope this helps.
23rd January 2013, 05:23 AM |#3  
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Quote:
Originally Posted by Dmwitz

I had a similar problem and discovered that "gpsd" on my phone was causing the drain. This system also required other systems whiqh together used about 45% of the battery. The "gpsd" is the system samsung uses to track your phone (if you have enabed it). It did not cause this drain on my phone prior to the update.
I hope this helps.

Hey thanks for your input. Would you be able to explain in more details on how to disable this "gpsd" thing you mentioned?

I would like to try it out myself
23rd January 2013, 09:41 AM |#4  
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I disabled all samsung apps, and several others including google now and location services.

Still a massive battery drain.

Very annoying..
23rd January 2013, 11:26 AM |#5  
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it is said 4.12 drain faster than 4.1.1
23rd January 2013, 11:51 AM |#6  
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Quote:
Originally Posted by bawffg85

it is said 4.12 drain faster than 4.1.1

Much much faster

I hope Samsung fix this issue, and quick! I don't like my phone losing a minimum of 20% overnight.
23rd January 2013, 01:20 PM |#7  
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I have no battery drain issues (yet) on the 4.1.2 could be just the vocal minority experiencing it or idk.
24th January 2013, 02:48 AM |#8  
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Re: [Q] 4.1.2 battery drain
Quote:
Originally Posted by EarlZ

I have no battery drain issues (yet) on the 4.1.2 could be just the vocal minority experiencing it or idk.

How much battery do you lose overnight?
24th January 2013, 03:46 AM |#9  
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Re: [Q] 4.1.2 battery drain
Quote:
Originally Posted by EarlZ

I have no battery drain issues (yet) on the 4.1.2 could be just the vocal minority experiencing it or idk.

On average I also don't observe a significant overall battery drain. Am currently projecting about 7-8 hours of screen time which is about the same as with before. Also having the same very low overnight drain.

However a few oddities:
Android system is higher on the battery charts than in 4.1.1.
I was playing nfs_mw before and after the update, and there is a significant increase in battery drain in 4.1.2. A full battery used to give over 4 hours of gametime, now gives just over 1 hour.

I've also not seem anyone else mentioning this and I'm not sure if this is related to battery but:
4.1.2 is absolutely perfect butter smooth
Every animation and transition had been completely fluid and going from 4.1.1 to 4.1.2 was like upgrading from 50% to 100% project butter.

Sent from my GT-N7100
24th January 2013, 05:18 AM |#10  
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[Q] 4.1.2 battery drain
Quote:
Originally Posted by HypoDest

I was playing nfs_mw before and after the update, and there is a significant increase in battery drain in 4.1.2. A full battery used to give over 4 hours of gametime, now gives just over 1 hour.

Sent from my GT-N7100

That's brutal. Were you able to confirm this over several days of gameplay ? Can you post screenshots of your battery stats screen?
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