Twitter can fix the 2.3.6 battery issue - AT&T Samsung Galaxy S II SGH-I777

We all need to tweet our concern about the battery life after the 2.3.6 Update. Be specific about 2.3.6 Update and Galaxy S2 I777.
Use @SamsungMobileUS and be sure to use the hashtag #DudeYoureABarista (this is their current marketing crap hashtag)
3 tweets won't get this done.
( yes there are other ways)

If you're havin' battery problems, I feel bad for you son
I got 99 problems, but a battery ain't one
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ricktat said:
We all need to tweet our concern about the battery life after the 2.3.6 Update. Be specific about 2.3.6 Update and Galaxy S2 I777.
Use @SamsungMobileUS and be sure to use the hashtag #DudeYoureABarista (this is their current marketing crap hashtag)
3 tweets won't get this done.
( yes there are other ways)
Click to expand...
Click to collapse
Don't say 2.3.6 update, say UCKK6 - that indicates a very specific broken build.

raduque said:
If you're havin' battery problems, I feel bad for you son
I got 99 problems, but a battery ain't one
Click to expand...
Click to collapse
Well everyone would have great battery life if they only had their screen on for 5 seconds like you.
Also, with hardly no screen time, your phone is awake quite a bit.

raduque said:
If you're havin' battery problems, I feel bad for you son
I got 99 problems, but a battery ain't one
Click to expand...
Click to collapse
... wow, it looks like you got something keeping your phone from going to deep sleep because screen time is like <5% of your awake time...

penguinlogik said:
... wow, it looks like you got something keeping your phone from going to deep sleep because screen time is like <5% of your awake time...
Click to expand...
Click to collapse
This is just a guess but it might be the BLOOD AND GLORY game that's running in the background

cfaberlle said:
This is just a guess but it might be the BLOOD AND GLORY game that's running in the background
Click to expand...
Click to collapse
Haha
Sent from my SGH-I777 using XDA App

Red5 said:
Well everyone would have great battery life if they only had their screen on for 5 seconds like you.
Also, with hardly no screen time, your phone is awake quite a bit.
Click to expand...
Click to collapse
you took the words right out of my mouth

Is everyone that is updated to 2.3.6 having battery problems?

I too would like toknow if this is happening to everyone or just a select few.

Possible Resolution to battery Drain Issue
I called Samsung Support and they helped me to change the wifi sleep policy from "never" to "when screen turns off". This resulted in using up less than 10% of my battery last night from 11PM to 7AM.
Action Taken:
1. Settings
2. Wireless and Network
3. Wifi Settings
4. Click Menu Button (next to Home Button) and Select Advanced
5. Select Wi-Fi sleep policy
6. Change it from "Never" to either "Never when plugged in" or "When Screen turns off".
7. One person reported success rebooting their phone after making these changes. For me I did not have to reboot.
I also thought that this may increase my hspa+ data usage, but it was hardly noticeable last night.

Yea...you're actually getting terrible battery life smarty pants
Sent from my SAMSUNG-SGH-I777 using XDA App

my battery drainage varries based on the rom I'm running... best battery has come from UnNamed and SHOStock.

I got a full day on 2.3.4 no way I'm switching to 2.3.6.
Sent from my SAMSUNG-SGH-I777 using xda premium

This happens with custom roms too. It is the wifi bug that Entropy512 noted in the other thread.

I'm getting around 20 hours on unnamed ROM with the mentioned wifi sleep policy setting. Is this good? I read my rss feeds like 5-6 times a day, make about 1 hour of phone calls, read autoguide forums like 5-6 times as well. I think it's ok?
Sent from my SAMSUNG-SGH-I777 using XDA App

Related

Battery life

Just wanted to show my battery life after i got a new battery sent to me from Motorola, I knew it was the battery and not my phone
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Sent from my MB855 using XDA App
Nice..how did u get them to send u a battery?
Sent from my MB855 using Tapatalk
e240 said:
Nice..how did u get them to send u a battery?
Sent from my MB855 using Tapatalk
Click to expand...
Click to collapse
i just called them up, my phone was still in warranty, so i had one free replacement, just give support a call, let them know your having battery issues and you should be able to get one
Yep, this phone rules. Love the fact that it works so good as a PHONE too, the way they all should. Motorola has it down. My best since the latest update was over 40 hours, with a few hours worth of phone calls.
Wow that's awesome. Now did you do anything else special like turning off data etc.
Sent from my MB855 using XDA App
What were you getting before?
Sent from my MB855 using XDA App
darodiho said:
Wow that's awesome. Now did you do anything else special like turning off data etc.
Click to expand...
Click to collapse
I use custom data saver mode set to turn off data automatically after 15 min all day and night. That way I don't have to bother switching data on and off manually. Plus, it comes on very fast when I turn the screen on. I do keep BT and WIFI off when not in use, brightness at 25%. I also use the built in task killer to auto kill a few apps that want to keep running, like Facebook. I'm locked, but rooted running stock rom, and I used battery calibrator app after the update which helped. Although, before the update I was getting pretty much the same battery life.
And with me, believe it or not, I have the brightness all the way down, (you'd be surprised how bright the screen still is!!!!!) That's my only real secret to even better battery life
Sent from my MB855 using XDA App
I did the same thing with moto, except i was getting great battery life to begin with. I just wanted a second battery.
One thing that I don't get though is why the phone always wakes up on it's own. My heroc and Evo 3D didn't do that, with the same apps installed. It kinda concerns me.
MinceMan said:
One thing that I don't get though is why the phone always wakes up on it's own. My heroc and Evo 3D didn't do that, with the same apps installed. It kinda concerns me.
Click to expand...
Click to collapse
Just wanted to post new battery settings:
- Running Skinny ROM, unlocked, rooted
- Actually stopped overclocking the phone - max is 1000 Mhz
- Undervolt @ -75mV
- Juice Defender - Customized Settings (wondering if Aggressive is better)
- I did go through two nights on Airplane mode 14hrs
- Alarm I hear is what causes the phone to be "awake" at night...
Well, I'd say it's been pretty impressive...though I didn't text much and wasn't on too many phone calls, I'd say 24 hours of use w/ 10% left isn't too shabby. I could have probably gotten another couple of hours.
Airwolf79 said:
I use custom data saver mode set to turn off data automatically after 15 min all day and night. That way I don't have to bother switching data on and off manually. Plus, it comes on very fast when I turn the screen on. I do keep BT and WIFI off when not in use, brightness at 25%. I also use the built in task killer to auto kill a few apps that want to keep running, like Facebook. I'm locked, but rooted running stock rom, and I used battery calibrator app after the update which helped. Although, before the update I was getting pretty much the same battery life.
Click to expand...
Click to collapse
Can you tell me the name of the application?
Sent from my MB855 using xda premium
Battery calibrator...check in market
Sent from my MB855 using xda premium

Noob with battery questions...please help

ok so i hate to start another battery thread but i'm a little confused...this is my first android phone and to me my battery won't even last 12 hours...i feel that's pretty low....i've read stuff about wakelocks and stuff but how do i find out how to stop them? here are my specs.... i'm rooted with UnNamed and siyah kernel....heres some screen shots taken when battery was at 3%....maybe you guys can help??
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lunercrab said:
ok so i hate to start another battery thread but i'm a little confused...this is my first android phone and to me my battery won't even last 12 hours...i feel that's pretty low....i've read stuff about wakelocks and stuff but how do i find out how to stop them? here are my specs.... i'm rooted with UnNamed and siyah kernel....heres some screen shots taken when battery was at 3%....maybe you guys can help??
Click to expand...
Click to collapse
How much screen on time did you have? how long has it been since you flashed your current set up?
Sent from my SGH-I777 using XDA App
sorry forgot that shot....i rooted and flashed on either Sunday or Monday this week.....now i do use bluetooth for work so i'm thinking that kills the battery big time....
That is kind of good battery life considering you got almost four hours of screen on time. If your really worried then you should get one of the 3500 mah batteries. I have this one http://forum.xda-developers.com/showthread.php?p=21589969. This battery gets me through at least a day and a half of heavy usage, and it works great for the price.
yeah i wasn't sure...i always keep reading about people getting 1.5-2 days on a battery...it's a new toy so hopefully when the excitement wears off that screen won't be on so much
That's exactly what will happen. You have new phone syndrome. I did too, when I first got my Galaxy S2. Except that I, unlike you, was running stock unrooted, and my battery life was more like 8 hours. I'm now running stock rooted with Entropy's kernel, plus I don't use my phone as much, and I get between 15 and 20 hours.
Sent from my SAMSUNG-SGH-I777 using xda premium
Yeah...with almost 4 hours screen on, and mostly on cell data (assumption based on your 2.x hours of wifi on) that isn't too horrible. Your total awake time is about an hour more than screen on, so assuming you had phone calls, music playing, or some other screen off background task to account for some of that, you're doing pretty good...
Sent from my SGH-I777 using XDA App
LOL so I'm guessing the best way to really conserve battery is to keep the screen off. Just outta curiousity (which I will test tonight after full charge) what is an acceptable drop rate when phone is fully asleep for say 8 hours or so. Like what 1-2% an hour?
Sent from my SAMSUNG-SGH-I777 using XDA App
lunercrab said:
LOL so I'm guessing the best way to really conserve battery is to keep the screen off. Just outta curiousity (which I will test tonight after full charge) what is an acceptable drop rate when phone is fully asleep for say 8 hours or so. Like what 1-2% an hour?
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
I think the best I have seen reported is 0.5% per hour. Mine on wifi has been as good as about 0.8% per hour, but usually a little over 1%.
Sent from my SGH-I777 using XDA App
lunercrab said:
LOL so I'm guessing the best way to really conserve battery is to keep the screen off. Just outta curiousity (which I will test tonight after full charge) what is an acceptable drop rate when phone is fully asleep for say 8 hours or so. Like what 1-2% an hour?
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
2%/hour idle drain I consider bad - that's why I haven't released a kernel since 1/2/2012 - I have a power management regression that pushes drain to a bit over 2%/hour when connected to wifi.
I strive for 0.5%/hour and get very close to that frequently when in a good signal area. In a weak signal area (like at my desk at work), it's around 1%/hour.
4.5%/hour or so is the idle drain you'll get if the phone is unable to enter deep sleep.

Sudden battery drop in SGS2 after reboot

I've been noticing sudden abnormal battery drops in my phone after a restart. Any clue what could be causing this? Screenshots attached...
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Below are my kernel and firmware details...
Sent from my GT-I9100 using XDA App
You may need to calibrate the battery as this really should not be happening, it will always drop a bit after rebooting but not too much.
jonny68 said:
You may need to calibrate the battery as this really should not be happening, it will always drop a bit after rebooting but not too much.
Click to expand...
Click to collapse
You can safely ignore this incorrect advice.
If you notice a sudden drop like that, just forget about it and carry on enjoying your phone. You'll then notice a gradual increase in reported battery level.
Just switch off your mobile...and take off the battery for 5 min and put it back...and reboot...this is what i have done...when it has sleep issues...and...the problems gone...
Same problem with me
Sent from my GT-I9100 using xda premium
oinkylicious said:
You can safely ignore this incorrect advice.
If you notice a sudden drop like that, just forget about it and carry on enjoying your phone. You'll then notice a gradual increase in reported battery level.
Click to expand...
Click to collapse
will you ever go and **** off and stop trolling what i am saying is correct, i had the same issue and after calibrating my battery the problem was resolved.
jonny68 said:
will you ever go and **** off and stop trolling what i am saying is correct, i had the same issue and after calibrating my battery the problem was resolved.
Click to expand...
Click to collapse
I'd just like to say you're both right. Calibrating your battery will help, but if this does happen again just ignore it. Your battery level will go back up. Just find the nearest iFan and tell them your phone charges itself
Sent from my SGS II via Tapatapatapatalk
jonny68 said:
will you ever go and **** off and stop trolling what i am saying is correct, i had the same issue and after calibrating my battery the problem was resolved.
Click to expand...
Click to collapse
I'd love to hear how you calibrated your battery, considering such a thing is not possible on this phone.
Oh, and so you know, if you're going to post incorrect information, of course I'm going to correct you (that's not trolling btw). So what if we've bumped into each other twice in two days, if you're going to post nonsense like this, of course I'm going to respond
jonny68 said:
my phone was on standby at 97% deep sleep @ 200MHZ
Click to expand...
Click to collapse
jonny68 said:
will you ever go and **** off and stop trolling what i am saying is correct, i had the same issue and after calibrating my battery the problem was resolved.
Click to expand...
Click to collapse
No, what you are saying is not correct. If you think you are correct, please show me the interface in the fuel gauge driver that is used to load history data into the fuel gauge chip.
I guarantee you that you will not find any such interface.
Our fuel gauge (MAX17042) does NOT need calibration - see the datasheet for its predecessor, the MAX17040. While the 17042 has some features that, if enabled, could require calibration cycles, these features are NOT enabled in any Gingerbread kernel, and at least one person received correspondence from Samsung that the GS2 does not even have the required hardware support for these extended features.
http://www.maxim-ic.com/datasheet/index.mvp/id/6621
"Unlike traditional fuel gauges, the ModelGauge algorithm eliminates the need for battery relearn cycles and an external current-sense resistor"
There is no need to EVER perform any sort of battery calibration technique on our fuel gauge, other than this simple technique:
WAIT - your state of charge estimate will converge towards truth over time if anything throws it off. Rebooting on low battery is one of the few known cases where the estimate gets thrown off temporarily, and the tradeoff for having this one corner case is that we never need to calibrate our fuel gauge.
Edit: FYI, if you want to be pedantic - I am fully aware that the MAX17042 functionality is built into the MAX8997, just like the MAX17040 functionality of the Galaxy S series was built into the MAX8998. However it's well documented that this built-in function is identical to standalone 17040/17042 ICs.
bad news i'm affraid..
Hello chiefs,
I'm affraid i have some bad news for the OP and others who are facing this issue.
I had it as well (and still do from what the looks of it) and it got so bad eventually that i had to send it to the shop. they replaced the headset (donno what that has to do with anything) and it has worked for a while, until tonight. i have no clue what's going on but if this keeps up i'm gonna see if i can replace this for another phone. it's getting really annoying up in hea'..
Just my two cents..
This is another bothering issue that I find with GS2.
I would rather have a phone that needs callibration instead of a phone that doesn't but that shows "false" information regarding the battery charge.
greatly improved battery life with ICS
I updated to the leaked Samsung ICS LPH ROM and got as much as 21 hours of battery life! So give it a try or wait till Samsung officially releases ICS on 15the March.
I've searched everywhere and it seems there is no real fix for this. WTF.
And the most annoying thing is that when I'm below 15% (which I'm NOT), it won't let me use the stock camera app. Ugh.
ThaiM said:
I've searched everywhere and it seems there is no real fix for this. WTF.
And the most annoying thing is that when I'm below 15% (which I'm NOT), it won't let me use the stock camera app. Ugh.
Click to expand...
Click to collapse
Get on to a custom ROM mate
Sent from my GT-I9100 using XDA

Battery Woes

Is anyone else finding it extremely difficult to get through the day without struggling to keep your SIII alive? I thought the battery life was supposed to be superior to its predecessors? I'm a first time Android user but I did not think I would have to lower my brightness all the way and constantly monitor my devices battery life.
do you have some dumbass apps draining your battery?
i found my culprit and it's Friendcaster without even turn the notification on
get Badass battery monitor to find it or just use the one in setting
I'm finding the battery life is great, and lasts a whole day with no problems
It really depends on what do on your phone.
Try posting a screenshot of your battery stats. Android has an inbuilt monitor with each app and its usage being displayed. Easy method to spot a drain.
I just downloaded that in addition to my other app but there doesn't seem to be anything out of the ordinary that seems to be killing my battery. Most of it is coming from my screen but I keep at it 25% brightness the whole time. Super odd
I usually get around 16 hours of standby and at least 4 hours or more of screen time.
You should try Watchdog Task Manager. It will be able to tell you if an app is running and using more processes than it should. Also I've never used badass battery stats, but better battery stats will tell you if anything is holding a wakelock. It is free for XDA members so you don't have to buy it on the market. Just search for it
Elgordo2 said:
I'm finding the battery life is great, and lasts a whole day with no problems
It really depends on what do on your phone.
Try posting a screenshot of your battery stats. Android has an inbuilt monitor with each app and its usage being displayed. Easy method to spot a drain.
Click to expand...
Click to collapse
Where exactly would I find this inbuilt monitor?
Settings/Battery Is what I was refering to. The other two recommended apps are probably more detailed.
Is this it?
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On saturday I drove for 4 hours streaming music via bluetooth to my car. Used navigation for about 40 minutes with the screen on the whole time. Took a few calls, sent a few sms's. Read a few forums using data. Got home that night with about 40% left. That'll do me.
Maybe I'm just freaking out about the whole battery situation? I just expected it to be a lot longer and a lot better. I constantly worry if I'll be able to make past 10PM when I start my day at 7AM.
On wifi with little to no voice signal that cuts out frequently, I might get seven hours of screen on time today D:
Sent from my GT-I9300 using Tapatalk 2
Yeah i found it average and could just get through a day. Ended up installing lightweight rom and lasts a day no problem.
Get Better Battery Stats and have a look at what the Wakelocks are like http://forum.xda-developers.com/showthread.php?t=1179809
eddylee09 said:
Maybe I'm just freaking out about the whole battery situation? I just expected it to be a lot longer and a lot better. I constantly worry if I'll be able to make past 10PM when I start my day at 7AM.
Click to expand...
Click to collapse
You should be fine, i start my day at 5am and still have 40% at 8pm.
Sent from my GT-I9300 using xda premium
I'm getting huge drain from Cell Standby.
It'll lose 30% overnight. I keep checking for a software update. It's got to be the modem.
I'm holding off on rooting and custom ROMS until I know for sure this is fixable in firmware.
My phone's on LE6 and is from Thailand.
I see that you have poor signal reception
maybe that's why
last time I went underground, just 5 mins of standby it took away 10% of my battery
when it searches for signal it drains a lot
you could also try to disable auto search for network
go to setting>more settings > network operators and select it manually
joshnichols189 said:
On wifi with little to no voice signal that cuts out frequently, I might get seven hours of screen on time today D:
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
An update, I did not want to drain fully to 0 but I got six hours and forty minutes of screen time yesterday and I think I could have hit seven if I drained fully.
Sent from my GT-I9300 using Tapatalk 2
i get 48% on cell standby... my phone lasts around 4-5 hours... anyone got any ideas what i can do to increase my battery further??
Sent from my GT-I9300 using xda premium
super
lokhor said:
Get Better Battery Stats and have a look at what the Wakelocks are like http://forum.xda-developers.com/showthread.php?t=1179809
Click to expand...
Click to collapse
Super idea ) i've done that today. All seemed good. 2,5 % awake is fine

Battery drained with JB..

I see that the major cause of battery usage is the WiFi, exactly like it was on WW28, the worrying thing is that I also spotted that during the night, the Prime lost 2%, even though all stuff was turned off with the Prime in sleep
All Sync, WiFi and all the things that could use WiFi are turned off and all "checks" are set in settings that could be checked/unchecked.
On WW28 and using the modded prop, I never lost a % during night.. so maybe the only way to have it working good again is to have a new prop suitable for the JB (I asked in the proper thread in Dev. forum)
Any other experiencing battery drain with JB? And especially a higher WiFi battery usage again?
bimbobo said:
I see that the major cause of battery usage is the WiFi, exactly like it was on WW28, the worrying thing is that I also spotted that during the night, the Prime lost 2%, even though all stuff was turned off with the Prime in sleep
All Sync, WiFi and all the things that could use WiFi are turned off and all "checks" are set in settings that could be checked/unchecked.
On WW28 and using the modded prop, I never lost a % during night.. so maybe the only way to have it working good again is to have a new prop suitable for the JB (I asked in the proper thread in Dev. forum)
Any other experiencing battery drain with JB? And especially a higher WiFi battery usage again?
Click to expand...
Click to collapse
Mine is the complete opposite lol
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Ziocomposite said:
Mine is the complete opposite lol
Click to expand...
Click to collapse
The difference might be explained by the fact that if you use more "brightness" than I do, then the percentage of what screen and wifi use may vary.
My screen brightness is 20% then my value for screen is lower than yours and the battery higher, because that's the proportional values.. I think.
That's the best part, the tablet is usually 1-25% brightness the majority of the time. Prior to JB, similar usage would have wifi taking close to or above 2-1 ratio. <3 this update
I've found that I've got about 5% increase in battery life. There are new Power Saver section in settings so you might want to mess with those and see if it helps. From what I've seen it's really only to turn stuff off at a user defined power %. Still, check it out.
theandies said:
I've found that I've got about 5% increase in battery life. There are new Power Saver section in settings so you might want to mess with those and see if it helps. From what I've seen it's really only to turn stuff off at a user defined power %. Still, check it out.
Click to expand...
Click to collapse
Thanks, but I did that.
I found a bug too.
When you change the power settings from the quick settings window in the "desktop", the changes are not recognized in the "power setting" you refer too, you have also to change there.
So if I choose balanced one place I have to do the same in the other too.
I see only that the WiFi is much faster at start when waking up from standby, but I think there is something wrong in these power settings.
I never lost 2-3% at night when the Prime was on WW28... and the battery/WiFi seems to drain faster now..
Just let things settle. These things takes time after updates. Its too early for any accurate readings anyways.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Are you really complaining about 2% overnight battery drain? Come on man! Battery on my prime has been better on jb
Sent from my ADR6400L using xda app-developers app
mdeblaz said:
Are you really complaining about 2% overnight battery drain? Come on man! Battery on my prime has been better on jb
Sent from my ADR6400L using xda app-developers app
Click to expand...
Click to collapse
Remember that we do not use all same settings, and/or use devices same way. Making a comparison is only possible on the same device and the same setup/use.
I am happy that you are seeing improvements.
I will see in a week what is the result for me.
How could I imagine they would ever get it straight
Bad, it's worse than on .21.
Edit 100203
Try my thread http://forum.xda-developers.com/showthread.php?t=1674551
Aye, as far as I can notice it's draining a tiny bit quicker. I keep mine at max brightness IPS+ (except for late at night every now and again) but don't get more than an hour or two's use a day on average. Usually go anywhere from three to six days without charging, depending on how forgetful I am with turning WiFi off.
I can't factory reset like you until there's a new root method, but also like you I factory reset and restored only specific apps' data so the update would go as smoothly as possible. To no avail lol, but oh well. I'll give some more in-depth info as I have time to.
Sent from my HTC Vision using xda premium

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