Develop Bugs

"Android OS" consuming battery [POTENTIAL SOLUTION]

EDIT
I was able to solve my battery issue by formatting my SD card. Something on there was causing the battery to drain 2-3 times more quickly than normal. After formatting, I went from 6-8 hour battery life to around 20 hours with significant usage (Google, Exchange, IMAP, Facebook all on push, 3G+Bluetooth+GPS on, 4G and wifi as needed for extra speed).
Important to note, I am not entirely convinced that the Android OS and battery drain are related since I still have Android OS near if not at the top of my battery consumption screen, but the improved actual longevity is very significant. I recommend anyone having their battery run out format their SD card (and possibly USB storage) and see if that helps (obviously back up any important data first!). Good luck!
ORIGINAL POST
I'm getting pretty bad battery life, and it looks like "Android OS" is consuming most of it. I've rebooted (as suggested in other threads), checked OS Monitor for high-CPU usage processes, but nothing stands out. This is un-rooted, stock OS with no third party launchers installed.
I have a feeling if this issue was fixed, I'd be getting great battery life. This happening to anyone else?
Screenshots show the device at 38% after 6.5 hours off the charger.
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if u using a 2.3.3 based rom is normal, that bug is fixed at 2.3.4 and 2.3.5
Sent from my GT-I9000 using Tapatalk

Dfolt said:
if u using a 2.3.3 based rom is normal, that bug is fixed at 2.3.4 and 2.3.5
Click to expand...
Click to collapse
xak944 said:
This is un-rooted, stock OS with no third party launchers installed.
Click to expand...
Click to collapse
My device is running 2.3.4.

That's an awful lot of awake time with no screen on time. Do you have things updating in the background frequently? I.e. social hub, Facebook, news widgets?
And not to be too obvious, but is your 4g antenna turned on?
Sent from my SPH-D710 using XDA App

MoMatt said:
That's an awful lot of awake time with no screen on time. Do you have things updating in the background frequently? I.e. social hub, Facebook, news widgets?
Click to expand...
Click to collapse
No, I don't. I have fewer widgets and fewer accounts (haven't set up my work Exchange yet) than I previously had on my EVO, which got great battery life.
I've been on Android over a year and am quite familiar with how it works... I'm just unfamiliar with Samsung specifically and unrooted devices and was hoping someone might have a similar experience.

I have the same thing. Significantly more awake time then screen on time, and Android OS eating the battery. Also stock.

Same here too

I had this exact issue and no longer do. Here is what I did and posted in another thread:
OK I hope someone finds this useful and/or can verify. I was one of those people getting awful battery life, meaning lucky to last 8 hours from 100% to 0%. The "Android OS" process would take hours of CPU time. Now it will take up maybe 30 min over the course of the day. Here is the only thing I did between the time it went from bad to good. I changed the wifi sleep policy. It is by default (for me at least) set to never. I changed it to "when the screen turns off" and left it there for about an hour. Then went in and changed it back to never. From the point of doing this my battery life has been great.
I know it sounds strange but it seems to have worked for me so I thought I would share.

mjdoran said:
I had this exact issue and no longer do. Here is what I did and posted in another thread:
OK I hope someone finds this useful and/or can verify. I was one of those people getting awful battery life, meaning lucky to last 8 hours from 100% to 0%. The "Android OS" process would take hours of CPU time. Now it will take up maybe 30 min over the course of the day. Here is the only thing I did between the time it went from bad to good. I changed the wifi sleep policy. It is by default (for me at least) set to never. I changed it to "when the screen turns off" and left it there for about an hour. Then went in and changed it back to never. From the point of doing this my battery life has been great.
Click to expand...
Click to collapse
Thanks for the suggestion!
I made the change, hopefully it will help, although I'm reluctant since I haven't had wifi on all day and my battery has been dropping like a rock. Here's hoping... will report back if it helps.

xak944 said:
Thanks for the suggestion!
I made the change, hopefully it will help, although I'm reluctant since I haven't had wifi on all day and my battery has been dropping like a rock. Here's hoping... will report back if it helps.
Click to expand...
Click to collapse
I rarely use wifi as well but this setting seemed to affect the phone in general, if your using wifi or not. I might just be crazy though. Either way I no longer have the issue so

does the google voice widget pull data in the background or is it a push thing?

I'm seeing high usage (60+%) by AndroidOS also (stock, unrooted, not using WiFi, not using 4G), although battery life has not been bad that I have noticed.
Watchdog Lite indicates that this is primarily due to two processes:
events/0
suspend

mjdoran said:
I had this exact issue and no longer do. Here is what I did and posted in another thread:
OK I hope someone finds this useful and/or can verify. I was one of those people getting awful battery life, meaning lucky to last 8 hours from 100% to 0%. The "Android OS" process would take hours of CPU time. Now it will take up maybe 30 min over the course of the day. Here is the only thing I did between the time it went from bad to good. I changed the wifi sleep policy. It is by default (for me at least) set to never. I changed it to "when the screen turns off" and left it there for about an hour. Then went in and changed it back to never. From the point of doing this my battery life has been great.
I know it sounds strange but it seems to have worked for me so I thought I would share.
Click to expand...
Click to collapse
I'm having the exact same issue. Stupid question here (I've already tried to find it and googled it too, but no success.
Where do you change the wifi policy? I don't see it under wifi settings

limeaid said:
Where do you change the wifi policy? I don't see it under wifi settings
Click to expand...
Click to collapse
Wifi Settings > Menu > Advanced

limeaid said:
I'm having the exact same issue. Stupid question here (I've already tried to find it and googled it too, but no success.
Where do you change the wifi policy? I don't see it under wifi settings
Click to expand...
Click to collapse
Settings >> Wireless and Networks >> Wi-Fi settings
Then press the menu button and then advanced.
Should then be the first option "Wi-Fi sleep policy".

Thanks. Like everyone else, I'm going to try this out and report back after a day or so

I'm trying to get into the 'INFO' section to view wake locks for battery usage clues. I've tried *#INFO*1111# (as mentioned here) and the old *#*#INFO*#*# to no avail. Anyone been able to get to the diagnostic screen from the dialer?

Are people with battery problems using widgetlocker?

JoeBruin32 said:
Are people with battery problems using widgetlocker?
Click to expand...
Click to collapse
Interesting. I installed it yesterday. Will try removing it if the wifi setting doesn't work...
Is anyone with the "Android OS" battery drain not using widgetlocker?

xak944 said:
Interesting. I installed it yesterday. Will try removing it if the wifi setting doesn't work...
Is anyone with the "Android OS" battery drain not using widgetlocker?
Click to expand...
Click to collapse
I am not and was not using it.

Stock ICS - post-update issues, swype, battery, SU

I waited a LONG time for the stock ICS to be released. Three days ago, I finally had enough, updated to AOKP - so of course the very next day saw an Engadget article saying the ICS OTA update would be over the next few days. Since I was disappointed the AOKP doesn't offer the same Exchange account sync schedule options as stock (important to me due to my work), I flashed back to stock, rooted, no CWM, just stock recovery, and planned to wait out the stock ICS update.
Last night, I flashed the stock ICS update via QBKING77's link in the video:
http://www.engadget.com/2012/07/12/..._campaign=Feed:+weblogsinc/engadget+(Engadget)
I went to bed without playing with it much, it was late.
I woke up this morning, sent a few text messages and played with trying to get swype to work - in 20 minutes, used up 6% of my battery! 20 minutes later, not using my phone (I was on my computer searching here) another 5% of my battery used. In less than an hour, I was at 85%.
Looking at the Battery chart, I see my "mobile network signal" is staccato, interrupted black and green, green only 50-60% of the time. Not sure if this is contributing.
I have BetterBatteryStats installed. I work with little kids Saturday morning, then have a date, so I'll have quite a bit of time with my phone where it should be sleeping, so I should be able to build some stats - but any help is appreciated, I'm going to have to carry an extra battery with me at this rate.
I also can't get Swype working. I've seen comments like this:
RainMotorsports said:
Clear the data for swype, you lose the dictionary but it will work after that.
Click to expand...
Click to collapse
How is this supposed to be done?
I recalled the dictionary comment when reading last night, so cleared the dictionary from the Settings --> Language and Input --> Swype settings. That didn't resolve it. I'm noticing that many of the settings in this category are entirely unresponsive as well.
If I go into Swype from Settings--> Applications, the Clear Data button is greyed out.
Force Stop doesn't enable the button, Disable doesn't enable the button.
It also just continuously shows "computing" for the space stats.
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And I've lost 4% more as I've been typing this on my PC - phone not even on.
Another odd effect - I was rooted before updating (but again, no CWM, just stock recovery, rooted kernel), but of course am not rooted now. However, when I move around the phone, accessing certain things, I'm noticing the permissions popup box appears "[application] has been granted superuser access". Is this contributing? Should I uninstall superuser app? I just figured I would wait a day or two until a rooted FF18 kernel was available and then I'd be back as I was, rooted.
Any thoughts on these? I can't believe Samsung or Sprint would have released it this way... maybe others aren't experiencing these? I'm not seeing many threads with people complaining about them, and most people seem to be able to fix Swype like it's a simple fix - clear data, no prob.
Any help is appreciated, thanks.

I know I've seen it, but can't find it at the moment, but did you pull your sd card out when trying to clear data to avoid the computing issue?
And I know I saw a thread with a fix for it but is driving me crazy that I can't find it. :banghead:
Sent from my SPH-D710

After flashing anything. new, allow the battery to cycle a few times before expecting a clear reading.
Other than that, I'm unsure.
Mine works fine! settings all set to battery friendly. Auto brightness off set to low, no haptic or vibrating ever, no touchkey lights, etc.
FF18 SFHub Rooted

On the "computing" issue. Others have talked about it here.
Knew I saw it..
Sent from my SPH-D710

MoHoGalore said:
On the "computing" issue. Others have talked about it here.
Knew I saw it..
Sent from my SPH-D710
Click to expand...
Click to collapse
Awesome, that actually worked, for the Swype issue - it stopped "computing", and when it did the "clear data" button appeared.
I'll leave my SD card out for now (about 45 gig of music on it is all that's on there), we'll see if anything else changes or smooths out.
Sounds like it shouldn't be a problem when I put the SD card back in, either (fingers crossed)

mcadamry said:
After flashing anything. new, allow the battery to cycle a few times before expecting a clear reading.
Other than that, I'm unsure.
Mine works fine! settings all set to battery friendly. Auto brightness off set to low, no haptic or vibrating ever, no touchkey lights, etc.
FF18 SFHub Rooted
Click to expand...
Click to collapse
This seems more extreme than that.
I'll bring an extra battery with the car, if I run completely out we'll see what happens - but I'm wondering now if I swap the fully charged battery in, if that'll throw off the battery stats too. I never understood those battery stats.

I just tried to do a Better Battery Stats dump to file, but the file it produced is empty.
I thought it was going to be too big if anything, I checked all the boxes in "dumpfile settings".

I also had swype problems. It said failed to load english or something similar.
Clearing it help. thanks!

Well - it's about 7:30, I've had somewhat average use of my phone today, but I hit power saving mode (30% battery remaining) at 7pm, which is about 3-4 hours sooner than I usually do - and it's actually worse than that because I didn't unplug my phone from the charger this morning until about 11am - so that's about 2-3 hours later than I usually do.
Means I'm getting something like 6-7 less hours of battery life on this ROM.
I tried to generate a Better Battery Stats dumpfile but it looks like the text file was blank - anyone know how to do this?

geolemon said:
Well - it's about 7:30, I've had somewhat average use of my phone today, but I hit power saving mode (30% battery remaining) at 7pm, which is about 3-4 hours sooner than I usually do - and it's actually worse than that because I didn't unplug my phone from the charger this morning until about 11am - so that's about 2-3 hours later than I usually do.
Means I'm getting something like 6-7 less hours of battery life on this ROM.
I tried to generate a Better Battery Stats dumpfile but it looks like the text file was blank - anyone know how to do this?
Click to expand...
Click to collapse
I kinda expected this outta the 1st OTA to ICS... the few ICS ROMs I've used before this never gave me as good of battery life as stock GB did... I'm still on GB and I can get a full 18-20 hours out of it with what I consider to be pretty mod-heavy usage... Even though I expected it, it's till a let down .. unfortunately it prolly won't get much better until the Devs get a hold of it and tweak it out.. This whole crappy update situation is really turning me off android in general..

One thing I'm suspicious of is the new Sprint ID switcher thing. ..
The good: Open it. Switch from "Samsung" ID pack to "My ID" pack. Bam. Vanilla Ice Cream Sandwich launcher, no TouchWiz.
The bad: Download "Home Manager" app from Play market. Switch your ID's, and back. Observe both "Launcher" and "TWLauncher" are running. ...and if you had a third party launcher like I do (Go Launcher EX), you probably ALSO see that one "running", if you were using it.
You can use this app to kill the others, but it seems temporary. Having 2-3 launchers simultaneously seems like that could use a little more battery to me - and this is a built-in Samsung feature now.

Ics update battery fix
I found a way to greatly improve battery life after the update. Hold in the home button and a recent apps menu will pop up. Swipe apps to clear and android os battery consumption will drop to less that 35% mine was running at like 75% before i figured this out.

Correction its at 13% now. Much better than 75. Hope this helps
Sent from my SPH-D710 using xda app-developers app

[Q] Android OS Battery Drain

In the last few days, I have noticed that the process "Android OS" has been using maximum battery life (about 16-35%) and has also been consuming large amounts of data.
The only thing I have done recently is allow the facebook app to upload all pics from my mobile.
Any connection? FYI, I have not added a Samsung account.
Apologies if this has been answered earlier by I did search for it.

what version of android are you running?
what ROM? what kernel?
how long ago did you start to notice this?
is it a constant issue, or does it fix itself after a reboot or something, or with data connection turned off?
do you use google now?
if you are on the jelly bean 4.1.1 version, did you update OTA or odin? just curious, probably not related anyways...
what recovery are you using?
just trying to get some info before i help. many things in the android OS can be directly or indirectly related to each other but still have a side effect on battery life.

16-30% in general has been relatively normal on JB. (Usually between 14-18% is where it settles to)
Keep in mind that unless you are at least halfway through your batt cycle its going to be higher. If you're at 90-95% batt it can be much higher, just due to percentages and battstats being reset.
Not sure why you didn't find anything though, this has been covered a great many times in the past 6 weeks! Did you look at what the top processes are under Android System?
Sent from my SGH-T999 using xda premium

cobraboy85 said:
what version of android are you running?
what ROM? what kernel?
how long ago did you start to notice this?
is it a constant issue, or does it fix itself after a reboot or something, or with data connection turned off?
do you use google now?
if you are on the jelly bean 4.1.1 version, did you update OTA or odin? just curious, probably not related anyways...
what recovery are you using?
just trying to get some info before i help. many things in the android OS can be directly or indirectly related to each other but still have a side effect on battery life.
Click to expand...
Click to collapse
I had installed root66 prerooted JB rom. When I noticed the problem, I installed stock ICS through odin, updated to stock JB then rooted again but the problem continues.
I have been noticing this for about a couple of weeks. Restarting doesnt help but I havent yet tried turning off data. Will try that and let you know.
Yes I use google now.

DocHoliday77 said:
16-30% in general has been relatively normal on JB. (Usually between 14-18% is where it settles to)
Keep in mind that unless you are at least halfway through your batt cycle its going to be higher. If you're at 90-95% batt it can be much higher, just due to percentages and battstats being reset.
Not sure why you didn't find anything though, this has been covered a great many times in the past 6 weeks! Did you look at what the top processes are under Android System?
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Is this something peculiar to JB? I didnt see this in ICS. The top processes currently showing in the battery stats are Android OS: 28%, Voice calls: 17%, Screen: 11%, android system: 8%...
Is there anyway to check exactly which app is using the battery and data which is showing as Android OS?

pappuhathi said:
Is this something peculiar to JB? I didnt see this in ICS. The top processes currently showing in the battery stats are Android OS: 28%, Voice calls: 17%, Screen: 11%, android system: 8%...
Is there anyway to check exactly which app is using the battery and data which is showing as Android OS?
Click to expand...
Click to collapse
Yup, became much more of an issue in jb.
Press on Android System.
Sent from my SGH-T999 using xda premium

Odd... mine is usually only around 10%

Mine generally sits between 11-14% depending on use. But it can show 30+ if you check it at certain times.
For example, if you've fully charged the battstats will have reset. If you reboot the phone it will kick off the media scanner which can run for a while (this can also be the cause of it heating up for a short time). So once its complete it will have used a rather sizable chunk of the overall battery use. Since it usually doesn't run again, the percentage will steadily drop as other processes use the battery.
I know we aren't really discussing the media scanner, but I use it as an example that is pretty easy to see if you watch it.
Android system has a lot of processes which are listed under its category so depending on how each person uses their device it can vary a bit. Most screenshots of 'normal' reports that I've seen usually are around 14-18%. For me its lower, but I'm pretty sure I don't use mine the same way others do. There are times though where it can go higher for me, depending on what kinds of stuff I'm messing with or testing out.
I believe transferring large amounts of data over mtp is one thing that can cause it to go up...
Hope that makes sense.
Sent from my SGH-T999 using xda premium

my phone just started this last night. i took it off the charger around 11 last night (100% charged) and it woke me up at 3:30 with a low battery indicator, i checked task manager and nothing was open battery stats showed that android os was at i think 38%. i put it on the charger this morning at around 9 am because it had died fully. it's now 1 pm and it's at 95% charged, typically it takes only a couple hours to charge. my phone is fully stock running jb.
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What kernel/ROM and version of recovery are you using?

You can track data consumption of Android system apps via Droidstats
You'll be able to know wether it's Google Maps or any other service that uses data

I am fairly confident I've tracked it down to the touch sounds. Sounds dumb I know, but I believe they are wake locking excessively. I have much better results with ANDROID OS drain with them turned off. Interested to see if others do too.
Sent from my Nexus 7 using Tapatalk HD

Hey there,
im having a similar issue with my Google Nexus 10 running stock Android 4.2.2 (fresh install of factory image and then manual update with ota update.zip).
Here are two screenshots (didnt want to include here because they are HUGE and I dont know how to resize them in forum "code"):
One
Two
I havent been using it much the last days and im a little spoiled by an iPad 2 standby time so this is not very acceptable
I'll try Droidstats and see what I can make out of it.

markus4000 said:
Hey there,
im having a similar issue with my Google Nexus 10 running stock Android 4.2.2 (fresh install of factory image and then manual update with ota update.zip).
Here are two screenshots (didnt want to include here because they are HUGE and I dont know how to resize them in forum "code"):
One
Two
I havent been using it much the last days and im a little spoiled by an iPad 2 standby time so this is not very acceptable
I'll try Droidstats and see what I can make out of it.
Click to expand...
Click to collapse
Looks like you haven't used the tab (screen time) that much over the two days, making Android OS seem overtly guilty.
Try disabling touch sounds -- settings-sounds- touch sounds
Then let us know. I am convinced that is the culprit of the wake locks, keeping the Android OS (kernel & drivers) high and eating battery.

Lttlwing16 said:
Looks like you haven't used the tab (screen time) that much over the two days, making Android OS seem overtly guilty.
Try disabling touch sounds -- settings-sounds- touch sounds
Then let us know. I am convinced that is the culprit of the wake locks, keeping the Android OS (kernel & drivers) high and eating battery.
Click to expand...
Click to collapse
Sorry, forgot to mention it. I have them disabled since i own this tablet (and I checked it again).
I wanted to try DroidStats, but it seems to be an app for calls, sms and data
Can you post a link to this app (if its allowed )
EDIT:
Yesterday a friend of mine showed me the battery stats on his Galaxy S2 and had almost 40% "Android OS".... but he has never had better battery life. I start to think that (because of the percentage system) the built in battery tools are almost useless
Is 4 days a normal standby time for the Nexus 10? That would be very bad in my opinion.

I've just started seeing the same thing with my Galaxy S3 (Samsung issued ICS, rooted). Normally the battery will last around 24 hours with light use, but currently it's draining from full to warning level in about 4 hours with the screen mostly off (wi-fi, bluetooth and GPS are off at the moment). Touch sounds have been set to off from day one.
Yesterday, the culprit looked to be Beautiful Widgets (around 38%) so I turned some of that off (weather update animations, etc) but I'm still getting the same drain speed - now showing Android OS 26%, Cell standby 22%, Android System 15%, Screen 11%. Not sure if I trust the results though, the BW issue from yesterday could have been a red-herring.
Andre

[SOLVED!!]
i have this problem with my galaxy grand phone ,the battery discharges in 20hr , default OS was 4.1.2 official samsung , i changed my rom into a slim custom rom based 4.2.2 , but the battery has same problem again , Android OS battery Usage Was 80% !!!! and screen usage just was 9% !
my installed software :
Viber
WeChat
MyKet {Like Android Market}
Weather Widget
i used wifi 1-2 hour in a day ,
=================================
[SOLVE]
first go to Settings -> Developer Options -> Apps Tab -> checked Don't keep activities
set brightness to auto
then go to location services -> off access my location
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
now go to application manager -> Running Tab -> Force stop some apps with extra ram usage like settings
my phone just uses 5% battery in 13hr sleep mode ; ENJOY!

[Q] Unusual battery drain on note II

Hi everyone! My note 2 battery is driving me insane. I have been using my note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and remove from socket when it reaches 100%. This method has been working real well for me. I used to get really good battery life. I would recharge it to 100 and remove from socket and keep it there. I might only start working with it after 2 hrs of idle time a nd the battery percentage would be like 98 which is pretty normal. But two days back when I had to go out I found my battery level at 24 % and since I had no other choice I had to recharge it for 10 mins. That's when the problem started. After coming back home the battery had pretty decent juice left in it and I left it idle. After an hour or two when I checked the phone it had already switched off. I was in shock and tried to switch it on but it didn't work. So I thought of charging it to 100. After almost 3 hrs it was fully charged but since I don't work on my phone so late in the night, I removed it from socket, switched it on and left it there idle. And when I woke up after 5 hrs it had only 69% juice left in my battery. I checked my running apps and there were none. I had my data connection stopped. And still only 69? Thats kinda weird right? Is it because I recharged it before getting to 5 %. Is there a way I can remove the battery cycle cache or something. Please help.

Take a screen shot of the battery usage and screen time.

That's horrible and nowhere near acceptable. Use GSam/Better battery status to see what's draining your battery. It's highly likely that it's some rogue app doing it for ya. Or else it might be faulty battery too, if that's not the case.

jephindavis said:
Hi everyone! My note 2 battery is driving me insane. I have been using my note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and remove from socket when it reaches 100%. This method has been working real well for me. I used to get really good battery life. I would recharge it to 100 and remove from socket and keep it there. I might only start working with it after 2 hrs of idle time a nd the battery percentage would be like 98 which is pretty normal. But two days back when I had to go out I found my battery level at 24 % and since I had no other choice I had to recharge it for 10 mins. That's when the problem started. After coming back home the battery had pretty decent juice left in it and I left it idle. After an hour or two when I checked the phone it had already switched off. I was in shock and tried to switch it on but it didn't work. So I thought of charging it to 100. After almost 3 hrs it was fully charged but since I don't work on my phone so late in the night, I removed it from socket, switched it on and left it there idle. And when I woke up after 5 hrs it had only 69% juice left in my battery. I checked my running apps and there were none. I had my data connection stopped. And still only 69? Thats kinda weird right? Is it because I recharged it before getting to 5 %. Is there a way I can remove the battery cycle cache or something. Please help.
Click to expand...
Click to collapse
To find out,it is better to root ur phone. Then install better battery stats,and see whats draining your battery. You cant install bbs on unrooted phone.

tuxonhtc said:
That's horrible and nowhere near acceptable. Use GSam/Better battery status to see what's draining your battery. It's highly likely that it's some rogue app doing it for ya. Or else it might be faulty battery too, if that's not the case.
Click to expand...
Click to collapse
Do I have to root my note 2 to install those apps?

xartic12 said:
Take a screen shot of the battery usage and screen time.
Click to expand...
Click to collapse
This is not the exact one I was talking about..but still shows my problem
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jephindavis said:
Do I have to root my note 2 to install those apps?
Click to expand...
Click to collapse
I won't recommend GSam at all, just found that it drains my battery itself.
No, BBS doesn't require root for many functions, but still rooting would be even better though.

T.G.A said:
To find out,it is better to root ur phone. Then install better battery stats,and see whats draining your battery. You cant install bbs on unrooted phone.
Click to expand...
Click to collapse
I was planning to root my device but couldn't find a good tutorial site that would help me do it. Can you suggest me one?

jephindavis said:
I was planning to root my device but couldn't find a good tutorial site that would help me do it. Can you suggest me one?
Click to expand...
Click to collapse
Chainfire said:
- Follow these instructions to the letter. Do not touch any buttons or checkboxes that are not listed below to touch!
- Unzip the attached Odin3-vX.X.zip file
- Download and unzip the CF-Auto-Root-....zip file (see posts below this one)
- If you end up with a recovery.img and cache.img file, you've extracted twice. You need to end up with a .tar.md5 file - don't extract that one
- (USB) Disconnect your phone from your computer
- Start Odin3-vX.X.exe
- Click the PDA button, and select CF-Auto-Root-....tar.md5
- Put your phone in download mode (turn off phone, then hold VolDown+Home+Power to boot - if it asks you to press a button to continue, press the listed button, or run adb reboot download command)
- (USB) Connect the phone to your computer
- Make sure Repartition is NOT checked
- Click the Start button
- Wait for Android to boot
- Done (if it took you more than 30 seconds, you need practise!)
- NOTE: Sometimes the device does *not* boot into recovery mode and root your device. Just do the entire procedure again if this happens. If it still will not install root and such, make sure that in Odin "Auto Reboot" is not checked. Then after flashing, pull the battery, and boot with VolUp+Home+Power button to boot into recovery manually. This will start the install process.
New to Samsung? Unfamiliar with Odin? Think all the above is a hassle? Get used to it. It's very simple, and us Samsung folk use Odin (or Mobile ODIN ) for everything! It's so very very convenient once you get used to it. Notice the 30 second comment above? For experienced users, the entire process indeed takes only 30 seconds!
You may now optionally want to install and run Triangle Away to reset the flash counter.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=32708472&postcount=2
Here you go. Yours is N7100 right?

jephindavis said:
I was planning to root my device but couldn't find a good tutorial site that would help me do it. Can you suggest me one?
Click to expand...
Click to collapse
I did the above said tutorial too. I dint do anything else like triangle away as it is needed if i am claiming warranty from samsung. After rooting,check if you are rooted or not by installed root only applications like titanium backup.

battery drain
Hi guys I have a very unusual problem. My note 2 is already rooted within a week after I brought it. I have tried different roms n never changed my modem. It’s DLK7 from the beginning. And also I have tired different kernels but still I have the same problem.
Sorry let me come to the issue.
That’s my battery drains very quick if I am not connected to internet. Wearied isn’t it. I know. If I am connected to internet by data or wifi from night to till morning I have only 3% to 5% drain (screen is off coz me n my note 2 is sleeping). If I am not connected to internet the drain is about 40% to 50, 60% some times more.
When I checked I noticed that play store or some times facebook massager is using the battery this much. Once when I was in a very busy situation my note 2 is getting hot near the rear camera and my battery is draining very fast.
I googled it but I didn’t get a proper answer.
I think when I am not connected to internet facebook massager or play store is trying to sync with the internet with out realizing that there is no internet. It is causing the cpu over use and not letting the phone to go to sleep.
Can any one help in this matter?
The only way I have found is to set a task killer kills this apps repeatedly or stop them from syncing. Both will reduce the battery drain but it will make this apps useless.
Please help…………………….

There's really no need to let it drain down to < 20% before charging. If anything, that would be causing more harm than doing shallow charge/discharge cycles.
Source:
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

Use the app greenify, and apply it to Facebook. Play store shouldn't be causing this, but clear its data to be sure.
If this doesn't help, you should install better battery stats, to further diagnose any wakelocks that might be causing this.
Sent from my GT-N7100 using Tapatalk 2

As for me, that's that sh%$§y new version of google Maps that drains my battery, up to 25% in a complete cycle are now drained by GMaps when I absolutly don't use it...

i900frenchaddict said:
As for me, that's that sh%$§y new version of google Maps that drains my battery, up to 25% in a complete cycle are now drained by GMaps when I absolutly don't use it...
Click to expand...
Click to collapse
If you don't use an app, disable it from settings---->applications. Apps like Google music tend to autostart and slow the device and reduce the juice

Hi guys
Now I am using moon rom v10 n same time I updated my modem to latest DMG1 which comes with the rom and it seems that my problem is solved. Still under testing but yesterday I switch of all my internet and I have only 3-4% drain I don’t see any problem as I said still under testing. I will come back with more results.
As i900frenchaddict said I have noticed the new map is showed in the battery usage screen and it show 21% of usage but it didn’t drain from my battery but it’s there and I checked to force close it but it’s already stopped, but again it’s there showing its using 20-35% usage from yesterday.
Don’t know what’s going on. I hope its jest showing their n not draining my battery.
I hope this will help others.
Press thank if this helped anyone.

Unusual battery drain solved
Hi guys thank you for your support. Yesterday also I have tested n only 2% drain after 9.30 hours. For checking I disconnected all the internet and switched one play store and facebook massager. And checked.
Only 2% drain so my battery draining problem is solved.
My devise details if it will help someone.
Device: N7100
Rom: Moon rom V10
Baseband: DMG1
Kernel: Adam – 2.7
Android version: 4.1.2
Please press thanks if this helped.

54NJ41 said:
As i900frenchaddict said I have noticed the new map is showed in the battery usage screen and it show 21% of usage but it didn’t drain from my battery but it’s there and I checked to force close it but it’s already stopped, but again it’s there showing its using 20-35% usage from yesterday.
Don’t know what’s going on. I hope its jest showing their n not draining my battery.
I hope this will help others.
Press thank if this helped anyone.
Click to expand...
Click to collapse
To remove this unusual Google Map usage since last update, I realized that freezing it using Titanium Backup (and reboot) was not enough, the app kept on being displayed at a good place in my battery usage. But freezing it + non allowing Google's localization services stopped the problem.
Just I regularly use Maps, so now each time I have to re-eanble localization service, then use Titanium to unfreeze it.....

jephindavis said:
Hi everyone! My note 2 battery is driving me insane. I have been using my note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and remove from socket when it reaches 100%. This method has been working real well for me. I used to get really good battery life. I would recharge it to 100 and remove from socket and keep it there. I might only start working with it after 2 hrs of idle time a nd the battery percentage would be like 98 which is pretty normal. But two days back when I had to go out I found my battery level at 24 % and since I had no other choice I had to recharge it for 10 mins. That's when the problem started. After coming back home the battery had pretty decent juice left in it and I left it idle. After an hour or two when I checked the phone it had already switched off. I was in shock and tried to switch it on but it didn't work. So I thought of charging it to 100. After almost 3 hrs it was fully charged but since I don't work on my phone so late in the night, I removed it from socket, switched it on and left it there idle. And when I woke up after 5 hrs it had only 69% juice left in my battery. I checked my running apps and there were none. I had my data connection stopped. And still only 69? Thats kinda weird right? Is it because I recharged it before getting to 5 %. Is there a way I can remove the battery cycle cache or something. Please help.
Click to expand...
Click to collapse
Hey Bro, I used to have that problem. but NOW my phone usually lasts from 5 to 7 days. i use Deep Sleep Battery Saver get it from the play store.
download it, install it, open it, and you'll find options like ''Slumberer or custom whatever i forgot" So what u have to do is check Slumberer.
Click Thanks if i helped
---------- Post added at 11:35 AM ---------- Previous post was at 11:09 AM ----------
jacob_stallone1 said:
Hey Bro, I used to have that problem. but NOW my phone usually lasts from 5 to 7 days. i use Deep Sleep Battery Saver get it from the play store.
download it, install it, open it, and you'll find options like ''Slumberer or custom whatever i forgot" So what u have to do is check Slumberer.
Click Thanks if i helped
Click to expand...
Click to collapse
And yeah almost forgot, Also Disable Unused Apps That come with the phone, like dropbox, g+,samsung apps, samsung backup...etc

Mods, please close this thread
This discussion has ended. Please close the thread

Terrible battery life (H815, 6.0 Marshmellow)

Hi all,
I've had my LG G4 since September, and it's been a good phone. However, more so recently, the battery life has been terrible. When Doze decides to work on my phone the battery life is average, but it rarely seems to work. I use over 60% battery in 5 or 6 hours, and that's with most of the time the phone screen being off.
For example, tonight I went to see the new Star Wars film. Using that as a guide, my phone screen was off for about ~3 hours during that time. However, see attached, the battery is just being drained. There aren't any particular apps that I see using 90% battery or whatever - in fact, using a battery app, it looks like phone radio is using an incredible amount.
i.imgur.com/MCQ6Yz0.png
i.imgur.com/ziZEoEz.png
i.imgur.com/a8J9ufZ.png
Any tips for increasing the battery life? I don't see myself as an over user, but I often come out of an 8 hour work shift with just 20% left, and that's with mild web browsing every now and then, and maybe 20 minutes of YouTube video.
I'm thinking about doing a full restore on weekend after backing up my texts, or even ordering a new battery, but I don't feel this should be necessary.
My screen brightness is always 30% or lower. I don't know if this would have damaged the battery, but I use an Aukey quick charger.

-since how many days are using marshmallow ??
-What version ?? V20B or V20A ?
-Did you do a full factory reset after upgrading to MM?
Sent from my LG-H815 using Tapatalk

Hani88 said:
-since how many days are using marshmallow ??
-What version ?? V20B or V20A ?
-Did you do a full factory reset after upgrading to MM?
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
Thanks for replying.
I've been using it for 16 days now.
I updated though LG Bridge, and software info says V20a-EUR-XX
I've not done a factory reset, no. Will that help? All my photos, music and contacts are on Google's servers so I would just need to back up SMS and a list of apps.

yatesl said:
Thanks for replying.
I've been using it for 16 days now.
I updated though LG Bridge, and software info says V20a-EUR-XX
I've not done a factory reset, no. Will that help? All my photos, music and contacts are on Google's servers so I would just need to back up SMS and a list of apps.
Click to expand...
Click to collapse
you are welcome
I think factory reset will help you.. My MM battery is very well
for me my sms storage is SD card
you can do it
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Sent from my LG-H815 using Tapatalk

Thanks. It looks like my SMS are already saved to my SD card, so hopefully they will work straight away.
I really hope a reset fixes it, as I heard such great things about the LG G4 battery (with people posting it can last 24 hours or more!), and this is very disappointing. I'm off this weekend, so I will do it then.
If anybody else has any fixes as well, I would love to hear them if this doesn't work! The phone is great so far... aside from this.

yatesl said:
Thanks. It looks like my SMS are already saved to my SD card, so hopefully they will work straight away.
I really hope a reset fixes it, as I heard such great things about the LG G4 battery (with people posting it can last 24 hours or more!), and this is very disappointing. I'm off this weekend, so I will do it then.
If anybody else has any fixes as well, I would love to hear them if this doesn't work! The phone is great so far... aside from this.
Click to expand...
Click to collapse
you are welcome
and please give marshmallow few days chance after updating to V20B then tell us how the battery goes
Sent from my LG-H815 using Tapatalk

you have a rogue app or something, there is nothing wrong with Marshmallow 20B (or 20A for that matter) and battery life. I get insane battery life on this phone, often 22 - 30 hours of fairly heavy use.
Now granted, my phone is rooted, bootloader unlocked, running stock 20B and I have installed a couple of apps to optimize it such as AdAway, LBE security, and KinScreen, but still, you have a misbehaving app most likely that needs to be kicked off your phone!

Is there a way of finding which app? Nothing stands out. I've just taken another screenshot (disabling uploads Google Photos didn't fix it)-should screen off be using this much battery?
imgur.com/NwpJ2Iw
A reset is definitly in order tomorrow

yatesl said:
Is there a way of finding which app? Nothing stands out. I've just taken another screenshot (disabling uploads Google Photos didn't fix it)-should screen off be using this much battery?
imgur.com/NwpJ2Iw
A reset is definitly in order tomorrow
Click to expand...
Click to collapse
sure, start with turning on Developer mode by hitting Build Number in rapid succession a bunch of times in Settings ---> About Phone ---->Software Info
then look in the new Developers Options section of Settings and look at Running Services & processes - you can also download an app for this such as Elixir 2
another good diagnostic tool is heat - heat and battery life are proportional, if your phone runs cool, it will get long battery life, if you pick it up and it is warm around the power/volume buttons, then something is amiss - you have a runaway app or process
download a tool like CPU Temp from the Play store and see what the CPU temp is when the phone is idle or you are doing something light like reading an article - it should be in the 78 - 89° F. range (25 - 32° C.) If the phone is not in this temp range, then something is amiss! - Also keep in mind that the main battery drain on the phone in normal operation is the display - keep auto-brightness on, and keep the display off when it is not needed! - also turn off stuff you are not using, such as Bluetooth, NFC, etc.

I did a factory reset as suggested above, and I think it fixed it. I didn't restore my LG backup as I figured that that'd restore the problem, so went through and downloaded apps again. I then left it on overnight.
After 6 hours it was still at 100% on Wifi, which is great! I then used the phone for ~2 hours (apparently pretty heavily) which actually dropped it to 58% - whoops. I then stopped using it again but this time without wifi, and it didn't keep at the same % - it seemed to drop 10% in about 2 hours. The only things I'd changed since then was install Skype (which I might delete if that's the issue), and had it on mobile data.
imgur.com/n58dP1D
Could mobile data REALLY make that much of a difference? I think I'll leave it unplugged again tonight and not on wifi, and see what it does. This is an issue though if it is mobile, as I'm often not connected to a network.

Seems like mobile radio active bug, I have the same problem. While mobile data is active, my battery drains with the screen off. I have this issue since v20a and no - factory reset doesnt help at all...