Develop Bugs

Battery Life dreadful after ITL41F

Hi Everyone,
I was wondering whether anybody else has experienced this side effect of the ITL41F update? My battery life has been really really good, much better than that of my HD7. I was really chuffed with it. Along comes the ITL41F update, and since then the battery will drain itself on standby. Nothing has changed on my phone. I have not installed any new apps or made any settings changes (such as sync frequency, etc). So the only difference is the ITL41F update.
To give you an idea, If I charge the phone in the late afternoon, and then pretty much leave it alone, by the morning it will have gone down to 15% battery or less. This morning I plugged it in again, and now it's down to 50%. And I only sent a single txt message and didn't do anything else on the phone. This is properly rubbish.
Anybody know where I can report this bug to Google/Samsung?
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Cheers Guys!
Mich

You have a lot of awake time without your screen been on which seems a little strange.
Sent from my Galaxy Nexus using Tapatalk

I would say your mobile signal is using up a lot battery. when it is yellow that means its weak, and grey means no signal. Since this is the main 2 colours on your chart I would say this would be the main reason for your battery drain

Matcarroll said:
You have a lot of awake time without your screen been on which seems a little strange.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
What he said^^^
Something is keeping ur phone awake
Sent from my Galaxy Nexus using xda premium

How would someone go about improving that? My mobile connection is mostly yellow as well. Could APN settings help that? Or would I have to go about flashing a different modem and all that
Sent from my GNex

alias3800 said:
How would someone go about improving that? My mobile connection is mostly yellow as well. Could APN settings help that? Or would I have to go about flashing a different modem and all that
Click to expand...
Click to collapse
Are you seriously asking that question?
You improve your mobile signal but getting your network provider to install another mast, or switch to a different network with better coverage in your area.
If you could improve signal with APN settings or flashing a different radio it would be done like that from the factory!

WEll, I have a LG Optimus One and use franco kernel with it, and am soon buying a GN because he develops for it too, SO:
FLASH FRANCO KERNEL!
DOnate him a beer before and ten after the WOW-experience you'll get when you realise 4 days later that your battery is only 10% becuase of the popup.
And now read my words again.
It's the best option!

Your phone was awake for more than 50% of the time. If you really didn't use it, there's most likely a rogue app which is preventing phone from going into deep sleep.
Use an app like System panel to locate the culprit.

nevermind - delete me

Thanks for the fast replies guys, it's much appreciated! =)
What I find puzzling is that absolutely NOTHING has changed on the phone, apart from the update. So if there was a rogue app that was consuming the battery, it should have exhibited that behaviour before the update, right?
I will check with system monitor though, to see if I can spot something. The strange thing I noticed is that the OS is consuming *more* battery than most other functions. Even on standby.... weird!

After finally getting the patch I can't say the battery has been worse. In fact it seems to be better. Although I think that is down to the fact I've been through a few charge cycles now.

click on android OS, and check out the awake and CPU times. The cpu time should be a fractions of the time awake.
example, my phone has been on this charge for 22 hours (still 36% battery left.. didn't use it too much this charge). the leading battery drain is screen at 51% (2.5 hours awake time), and the 2nd leading item is Android OS which has the following:
CPU Total - 18m 53s
Keep Awake - 4h 46m 9s
I'm just curious on why your CPU total was in relation to the awake time by Android OS.

Mines great.
Sent from my Galaxy Nexus using xda premium

its funny how many similar theads appear everytime a phone gets updated. And most of them all go down to user error.
Just saying. my Gnex is fine after 11F update, OP should probably do a wipe

Guys, I'm not ruling out 'user error', but at this moment in time I cannot see what I could have possibly done to cause it. I have purchased System Panel on the Market and I'm running it in monitoring mode to see if it can shed some light on the issue. Strangely, 'Cut the Rope' and 'Exchange' are running constantly and as a service. Not necessarily consuming CPU while the phone is asleep though. Just though it would be strange for a game to be running as a service? Must be a reason for it....

Ask the developper of "Cut the Rope" why does it need to run that way. Exchange is run as a service because you probably need it.
Anyways, you can try a clean flash with stock ITL41F. But i'd say apps are to blame
Sent from my Galaxy Nexus using Tapatalk.

do you lose root if you update?

tommy96814 said:
do you lose root if you update?
Click to expand...
Click to collapse
Yes, but it's easy to do Superboot again.

mictho100 said:
Guys, I'm not ruling out 'user error', but at this moment in time I cannot see what I could have possibly done to cause it. I have purchased System Panel on the Market and I'm running it in monitoring mode to see if it can shed some light on the issue. Strangely, 'Cut the Rope' and 'Exchange' are running constantly and as a service. Not necessarily consuming CPU while the phone is asleep though. Just though it would be strange for a game to be running as a service? Must be a reason for it....
Click to expand...
Click to collapse
Did you factory reset after the update? If not I realize it sucks to do, but.....that's the road I would venture down.....have yet to own a Samsung that it wasn't almost mandatory to do. Always a battery and sleep issue.
Sent from my SAMSUNG-SGH-I777 using XDA App

No problems here
I'm using this phone on t mobile usa on my battery life is the same just like before the update.

Battery dead overnight.

So, I had about 50% juice when I went to bed last night. Woke up to see phone dead. Had to plug in charger to start it as battery was fully drained.
So what causes such sudden battery drop?
Screen shot attached.
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must the apps
rtz619 said:
So, I had about 50% juice when I went to bed last night. Woke up to see phone dead. Had to plug in charger to start it as battery was fully drained.
So what causes such sudden battery drop?
Screen shot attached. View attachment 1421108
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
It seriously looks like some apps have been doing some heavy tasks while youre sleeping..
Check with your nearest dealer. Then contact samsung if you think your battery is faulty

Battery doesnt seem faulty at such an early stage.
Best solution. Download BetterBatteryStats and check out what is draining your battery
Its the solution i would do with myself

imrhay said:
It seriously looks like some apps have been doing some heavy tasks while youre sleeping..
Check with your nearest dealer. Then contact samsung if you think your battery is faulty
Click to expand...
Click to collapse
I dont even have much apps installed yet. & battery life so far was really good until this morning. Seems quite stange. Has it happened to anyone else?

I don't think that could have been any apps to deplete the battery that quickly. I mean, that literally did a nose dive. Ever heard of Ghosts?!? DunDunDunnnnn

Does battery reset itself somehow?

Yes, an app or some apps drained your battery No other solution possible mate . As mentioned before install BetterBattery Stats and cpu spy and check for unusal app behavior.

The thing that surprises me is that on the steep drop, the green border-line is missing. It doesn't look like drain; it looks more a short circuit...

Its actually not a drain. Its a sudden cut off.

rtz619 said:
So what causes such sudden battery drop?
Click to expand...
Click to collapse
In your case, don't bother with better battery stats or any other that other crap people are suggesting. I don't think the majority of the people who read your post bothered to look at the attached image (or didn't understand it.)
During the time that your battery dropped off, android wasn't even active (as no battery stats were logged.) That drop-off looks to me like some type of system crash or something rebooted your phone into recovery (or download) mode and left it there until the battery died (causing a power down.)
I can't tell you WHY that happened, but I can't think of anything "normal" that would cause it. I used to see something similar when I was doing kernel work on a specific samsung tablet if the user had one of the so-called supercharger scripts installed. In that case, the kernel would panic (wifi bug) and the script had re-written the kernel parameters to cause an infinite loop instead of letting the kernel panic reboot the device. The result was that the device would get warm and drain the battery until there was no more power.
Recovery meant charging the device first and upon finally getting it to boot, the battery page would look similar to yours.
Another possibility is that your phone hit what it THOUGHT it was around 46%, but the battery stopped giving juice.
In your shoes, I'd do something I usually tell other people never to do: Purposely run your battery down below 40% to make sure the same thing doesn't happen. (If it does, consider restoring your phone to stock, testing again, and possibily calling Samsung.)
Good luck
Gary

garyd9 said:
In your case, don't bother with better battery stats or any other that other crap people are suggesting. I don't think the majority of the people who read your post bothered to look at the attached image (or didn't understand it.)
During the time that your battery dropped off, android wasn't even active (as no battery stats were logged.) That drop-off looks to me like some type of system crash or something rebooted your phone into recovery (or download) mode and left it there until the battery died (causing a power down.)
I can't tell you WHY that happened, but I can't think of anything "normal" that would cause it. I used to see something similar when I was doing kernel work on a specific samsung tablet if the user had one of the so-called supercharger scripts installed. In that case, the kernel would panic (wifi bug) and the script had re-written the kernel parameters to cause an infinite loop instead of letting the kernel panic reboot the device. The result was that the device would get warm and drain the battery until there was no more power.
Recovery meant charging the device first and upon finally getting it to boot, the battery page would look similar to yours.
Another possibility is that your phone hit what it THOUGHT it was around 46%, but the battery stopped giving juice.
In your shoes, I'd do something I usually tell other people never to do: Purposely run your battery down below 40% to make sure the same thing doesn't happen. (If it does, consider restoring your phone to stock, testing again, and possibily calling Samsung.)
Good luck
Gary
Click to expand...
Click to collapse
Thanks for the prompt reply.
Meanwhile battery life was normal throughout the day. I will follow what u suggested n if it acts weird again, I'll have to go to samsung i guess.

[IMPOSSIBLE] Battery drain while the CPU is in Deep Sleep [BetterBatteryStats]

Hi,
i managed to get my standby drain on unrooted stock 4.2 to 0,5% (WIFI) to 0,8% (HSDPA) per hour with disabling some stuff that i dont ever need.
Market notifications
Latitude
Google apps like Currents, Play movies, Play books etc...
This is great, but sometimes after usage it still felt like the battery keeps draining as the phone is in use with the screen turned on.
What now happenend is really weird:
I did set a custom reference in BetterBatterySats and left the phone on the table for 1 hour. No unneccessary apps running in the background. But it drained 7% in this hour. As you can see in the screenshots, the device was in Deep Sleep most of the time and there are no noticeable Partial Wakelocks.
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But how the heck is it possible that i lost 7% in one hour while deep sleeping? Is there any sort of app that can tell me in this particular case what went wrong?
Any info is highly appreciated.
Best,
ras

k9 mail seems to be one of the culprits

nope. it polls 2 accounts every hour anf therefore uses cpu time of approx. 0,4%. thats even even the case in that "awesome battery life" area seen on the last screengrab. a total of 15 sec. cpu time can't hurt that much.
Gesendet von meinem Galaxy Nexus mit Tapatalk 2

This may sound silly but did you try just to restart the phone?

linh1987 said:
This may sound silly but did you try just to restart the phone?
Click to expand...
Click to collapse
im pretty sure that this would fix it.
but because this happens from time to time (though this is the first time i can document it because auf BBS) i want to know whats the cause of this. it is pretty annoying to leave a phone on the desk and to find it drained empty a few hours later. this would have happened if didn't pick it up after one hour.

I get a similar problem too. Only way to clear it is a power down and restart.

Well, first of all, can we really be sure that those 7% aren't within the battery measurement margin of error?
Considering of course stuff like temperature, sensor's reading delay and other electrical/chemical/whatever stuff the battery may go through after heavy draining like you show in the graph?
I really don't think that % stats are that accurate, but that might just be me.
Some guy disassembled his Nexus S and measured the energy drain with accurate reading devices. Maybe someone should do the same on the Galaxy Nexus. Because if one software says there's no cause of drainage and another say there was some drain, maybe one should confirm which software should we rely the most.

VuDuCuRSe said:
Well, first of all, can we really be sure that those 7% aren't within the battery measurement margin of error?
Considering of course stuff like temperature, sensor's reading delay and other electrical/chemical/whatever stuff the battery may go through after heavy draining like you show in the graph?
I really don't think that % stats are that accurate, but that might just be me.
Some guy disassembled his Nexus S and measured the energy drain with accurate reading devices. Maybe someone should do the same on the Galaxy Nexus. Because if one software says there's no cause of drainage and another say there was some drain, maybe one should confirm which software should we rely the most.
Click to expand...
Click to collapse
maybe it happens because the voltage still gets down because of heavy use before. if this is the case the drain should stop at some point and the battery should not die completely.
i will def. keep an eye on this.

Its the fundamental problem with android and our battery technology.
One of two things need to happen, Google needs to get their act together (think project butter but with battery) or the OEM's need to start providing better battery technology. Its ridiculous that over the past 3 years there have been NO significant battery technology improvements. Yes, processors are becoming more efficient and using less power, but that is only going to take us so far. **** needs to happen and Google needs to press it.
Sent from my Galaxy Nexus using xda app-developers app

I am having the same issue... Huge battery drain happens in my case at the battery range of 0%~20% and 80%~100%.
Sent from my Galaxy Nexus

I am now using the latest franco kernel v335 and I think it somehow reaolve the issue. I will monitor and report.
Sent from my Galaxy Nexus using xda app-developers app

[Q] Awful Battery, Not Sure if ROM or Phone

Hey guys, I have a little bit of a question for ya.
Now my phone's battery life has been awful lately. Certainly not what it was when I first got the phone. I'm lucky if I can get 6 hours mostly on stand by.
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Theres what my battery usage is looking like right now, as you can see, its a steady decrease for the most part, but not a steady amount of use on my end.
I use Advanced Task Killer religiously, and even have it set to autokill. The weird thing is, my phone will get insanely hot sometimes while I'm not using it, I'll check ATK, nothing out of the ordinary, check running apps, nothing out of the ordinary, and if there is always kill it.
Right now I am running a CM10 nightly that is a few months old. Do you guys think that could be the case? I'm really not sure what else to do.
Any help would be greatly appreciated!

I see so much awake thhere, check if you have rogue app, use better battery stats or gsam battery
Sent from my Galaxy Nexus using Tapatalk 2

Yes, as aimcr7 says, it must be an app that doesn't let your phone to "go bed"
As you can see in my attachment, this is how it should look like with ~30 apps installed approx.
EDIT: For some reason (maybe i'm too noob), the forum doesn't let me to attach pics, so here it is.
http://img24.imageshack.us/img24/2926/screenshot2013011600252.png

Get rid of the task killer. They are useless and actually make your battery work harder. I'm not sure, but it looks like you don't have a solid, steady mobile signal. It looks like it goes in and out. That kills battery life.

Thanks for the replies. I got rid of ATK. I had a slight feeling it could be that because its on 24/7 monitoring apps, but I guess I just didn't wanna believe it lol. I got GSAM battery and I'm gonna run that for a few hours, see what's going on, but hopefully things will be all fixed. Thanks for the help!

Today i got 2:20h of battery life playing ingress xD sooooo bad
Sent from my Galaxy Nexus using xda premium

#1 problem: Verizon GNex, the battery life is dreadful. Screen on time is lucky to be half the GSM version.
#2 problem: Verizon GNex. There's a factory flaw in many of them that leads to the phone getting extremely hot at the top and having atrocious battery life. Only permanent solution is sending it to Samsung to get it fixed. The temp solution that's worked for me is draining the battery dead and recharging it with the phone off. Don't know why it's worked but it keeps the heat away for about a month or two for me.
#3 problem: (you guessed it) Verizon GNex. In areas with weak or no LTE the radio will endlessly consume. Try turning the radio to CDMA only and see if you get better life. Just pop it back on to LTE when you're using it.
Yeah... these are just a couple of the reasons why there is no Verizon Nexus 4...

z.coniglietti said:
Today i got 2:20h of battery life playing ingress xD sooooo bad
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Well, Ingress is one of the most demanding battery game of all times, lol. I went from 95% to 75% in 45 minutes or so. I think it's normal, since Ingress is constantly using 3g, GPS and screen.

BretonGirl said:
Get rid of the task killer. They are useless and actually make your battery work harder. I'm not sure, but it looks like you don't have a solid, steady mobile signal. It looks like it goes in and out. That kills battery life.
Click to expand...
Click to collapse
I agree with this. Task killers are really not necessary in Android. Android manages applications in RAM just fine and by removing them from run you are making your system even slower in loading them to the primary memory and thus can lead to a decrease in battery life.

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TheSavageSquid said:
Hey guys, I have a little bit of a question for ya.
Now my phone's battery life has been awful lately. Certainly not what it was when I first got the phone. I'm lucky if I can get 6 hours mostly on stand by.
Theres what my battery usage is looking like right now, as you can see, its a steady decrease for the most part, but not a steady amount of use on my end.
I use Advanced Task Killer religiously, and even have it set to autokill. The weird thing is, my phone will get insanely hot sometimes while I'm not using it, I'll check ATK, nothing out of the ordinary, check running apps, nothing out of the ordinary, and if there is always kill it.
Right now I am running a CM10 nightly that is a few months old. Do you guys think that could be the case? I'm really not sure what else to do.
Any help would be greatly appreciated![/QUOTE]
That's really not all that bad. I'll trade ya. Here's mine on Wi-Fi and not even using the radio:
[IMG]http://i166.photobucket.com/albums/u96/tallyforeman/Screenshot_2013-01-06-10-30-39-1.png
Click to expand...
Click to collapse

Battery drain???

Is there a drain??
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May I ask why you suspect a drain, like how long does it last and also what's wrong with the built-in bat-stat?
My biggest recommendation is to avoid DL'n every single app and keep it to a minimum.
Mine last roughly 2days with a screen time of 3-4h without charging (was away a weekend recently and took my chances and left the charger at home, used the camera alot incl. 4k shooting and alot of music videos playing and made all the way home with 1 percent )
Best phone in terms of battery I've come across yet.

on the stock rom and kernel?

Hello, what's your android version and firmware build number? I would like to use it because i'm on 4.4.4 build 14.4.A.0.108 and I'm experiencing fast battery drain.
[SIC] said:
May I ask why you suspect a drain, like how long does it last and also what's wrong with the built-in bat-stat?
My biggest recommendation is to avoid DL'n every single app and keep it to a minimum.
Mine last roughly 2days with a screen time of 3-4h without charging (was away a weekend recently and took my chances and left the charger at home, used the camera alot incl. 4k shooting and alot of music videos playing and made all the way home with 1 percent )
Best phone in terms of battery I've come across yet.
Click to expand...
Click to collapse

jserrano15 said:
I would like to use it because i'm on 4.4.4 build 14.4.A.0.108 and I'm experiencing fast battery drain.
Click to expand...
Click to collapse
Changing ROM will not help in most cases if you won't discover what is eating battery.
I am on the same above ROM and kernel and I don't complain.
Term 'fast' is not much precise, either.
BTW:
1.3%/h is pretty reasonable if phone was in use from time to time.
Base rule with BBS is to check batery over night, when it is not used at all.
Under those circumstances you should see 0.1-03%/h and that is completely fine.

F308 said:
Changing ROM will not help in most cases if you won't discover what is eating battery.
I am on the same above ROM and kernel and I don't complain.
Term 'fast' is not much precise, either.
BTW:
1.3%/h is pretty reasonable if phone was in use from time to time.
Base rule with BBS is to check batery over night, when it is not used at all.
Under those circumstances you should see 0.1-03%/h and that is completely fine.
Click to expand...
Click to collapse
how about dropping from 60% to 6% fast? that's my battery problem.

eumanoid said:
how about dropping from 60% to 6% fast? that's my battery problem.
Click to expand...
Click to collapse
As always - check that all automatic synchronizations are off.
google, pictures, facebook, whatsapp.
Hope you don't use WiFi all the time, nor you scan for available networks.
BetterBatteryStats is really helpful, read corresponging thread.

F308 said:
As always - check that all automatic synchronizations are off.
google, pictures, facebook, whatsapp.
Hope you don't use WiFi all the time, nor you scan for available networks.
BetterBatteryStats is really helpful, read corresponging thread.
Click to expand...
Click to collapse
i dont think using wifi and auto sync will drain my battery from 60% to 6% in just a second. Anyway, i ordered a replacement battery from witrigs. Hope this fixes my problem. Ive tried factory resets and repair through pc companion. still no improvement. Turning stamina mode improves my battery. It no longer drops 50% in a second, just 10%. Still way too low compared to my excellent battery life with kitkat. Before lollipop, i charge my phone every 2 days with heavy use. Now, i need to charge it twice a day with moderate use.

eumanoid said:
Still way too low compared to my excellent battery life with kitkat. Before lollipop, i charge my phone every 2 days with heavy use.
Click to expand...
Click to collapse
If so - I'd come back to KK before replacing battery, if for no other reason then to prove LP is guilty.
BTW:
Long ago I decided not to upgrade to LP.
Looks like evey step ahead is in real life step back.
Everything is more complicated, wants more maintenance, yet works worse than old simple tools.

jserrano15 said:
Hello, what's your android version and firmware build number? I would like to use it because i'm on 4.4.4 build 14.4.A.0.108 and I'm experiencing fast battery drain.
Click to expand...
Click to collapse
This with additional adblocker :angel:
And removed alot of bloatware and sony apps I don't need.