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  1. #76  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    So MBSMD mentioned something earlier that might make sense...handoff between 2 networks (HSPA and LTE). I noticed my battery heating up and battery drain starting and would check the network every once in awhile and it was LTE, then would randomly stop draining and was HSPA:14. Not the data, but the phone network. So I set up another APN "wap.cingular", under Settings->Other Settings->Mobile Network, which is AT&T HSPA network. Which in theory AT&T doesn't let you switch but it worked for me...when I turn on data now it is 4G, not 4G LTE and speeds are slower. Also, when I look under device info->mobile network it consistently says HSPA:13, not LTE:11.
    So when I manually switch networks, I notice phone heating up and GSAM says battery draining fast.
    I also found something online about how Verizon Samsung S3 allows you to choose your network, and how their handoffs are very inefficient. So they suggested downloading app Phone Info and setting to a specific network (CDMA only I think). Can't find the post again, but was there. Using GSAM they have a way to change to GSM only, but it changes right back to LTE/WCDMA/GSM (default) as soon as you exit the screen. I suspect this is AT&T. However, creating a new APN did allow me to switch to HSPA.

    I am going to try to work a few days in HSPA and see if random battery drains occur.
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  2. Thread Author  Thread Author    #77  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    A glimmer of hope:

    International Galaxy S3 gets OTA update with new baseband | Android Central

    Perhaps there's a fix for this in that update...and we can cross our fingers and hope it gets approved by AT&T in the near future. If it is a radio problem, that usually gets handled a lot faster than just minor bug fixes and improvements.
  3. #78  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by jeffreii View Post
    Thanks minsc but I've already exchanged the device (see post #1) and have posted my Better Battery Stats logs/screenshots as well as GSAM Battery Monitor screenshots extensively in this thread. If you can take a look and find anything please let me know but please read my posts first as I have done a ton of troubleshooting/logging/tests.

    Thanks again!

    BTW before I try a 3rd factory reset and use it with no apps installed, I am trying one last scenario. I turned off wifi and rebooted. I will not enable wifi again until I see the plummet occur again, at which point it's factory reset time.
    Yes I saw your screenshots but it looked they just lumped all the system processes together as "Android System". You need a way to get some clarity into specifically what the CPU time is for each of those system-level processes. Maybe the apps your using will give that level of detail, but based on the screenshots you posted I couldn't tell. Again, I'm a fan of the app "System" which will usually give you the breakdown of specific system processes. It's not free, but I don't think it's too expensive. Might be worth it if leads you to the culprit.

    As you are speculating, it could be a radio problem too. Either way your're in tough shape I'm afraid. I would exchange it again; if for no other reason than AT&T has proof of the issues your having. No one should have to be putting up with issues like this on a phone that's under warranty. Have you considered a switch to the One X? Not that I'm encouraging you to throw in the towel, but at some point you need to move on and have a working phone.
  4. Thread Author  Thread Author    #79  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by minsc View Post
    Yes I saw your screenshots but it looked they just lumped all the system processes together as "Android System". You need a way to get some clarity into specifically what the CPU time is for each of those system-level processes. Maybe the apps your using will give that level of detail, but based on the screenshots you posted I couldn't tell.

    As you are speculating, it could be a radio problem too. Either way your're in tough shape I'm afraid. I would exchange it again; if for no other reason than AT&T has proof of the issues your having. No one should have to be putting up with issues like this on a phone that's under warranty. Have you considered a switch to the One X? Not that I'm encouraging you to throw in the towel, but at some point you need to move on and have a working phone.
    Better Battery Stats digs a little deeper. See the logs (open with Wordpad) in this post:

    http://forums.androidcentral.com/sam...ml#post2038448

    Considering the OTA for international devices pushed today that includes "radio fixes" ... things may be fixed soon (I hope!). I can't do a store exchange again, I'd have to do the warranty exchange which is more of a pain and I believe I get a refurbished device...

    Zero chance of the One X. I can't deal with no MicroSD.

    I love this phone and it's working just fine - this battery drain is really just an annoyance, not a major problem in most scenarios. I just have to keep an eye on the battery and reboot it if the plummet starts.
  5. #80  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Since since I switched to HSPA so far have not had any random battery drains (10-20%/hr), and have been able to use everything normally (phone, data, wifi, GPS). By now, on LTE, would have definitely had at least one battery drain occur. I will keep on HSPA and write again if I do experience a drain. I really suspect that the battery drain is triggered by the phone trying to change networks from LTE and HSPA and not being able to do so.

    Further evidence of this: on a prior xda post (http://forum.xda-developers.com/show...1791955&page=2), somebody discusses how LTE does not carry voice and AT&T puts you in LTE on standby and then switches to HSPA when a call comes in and then back when you are done. I remember 2-3 battery drains being triggered by a phone call. Other times, when I had bad signal, the network changed from LTE to HSPA also (in Settings->About Device->Status) This could explain the randomness of the drains.
    Also, I randomly searched and found some highly technical papers that seemed to say it is hard to negotiate the change. 2G/3G changes are easy, but LTE to 3G/4G is not that easy. Also, when I switch networks manually, through settings and selecting APN, the battery heat up and drain start. So, I do believe that this is the cause, will continue on HSPA to make sure. On HSPA also the standby battery life is incredible (1% overnight -- with sync on, no data)

    So I do hope the solution is in the works, really got used to LTE speeds. You can of course, switch to LTE network by going into the settings and changing, but takes 4-5 extra clicks. Hopefully some OTA ROM update, which jeffrei posted previously, or the Voice Over LTE that is hopefully coming (http://www.eweek.com/c/a/Mobile-and-...-VoLTE-392288/) so the phone would not have to constantly change networks with every call.

    Other things I don't know -> There are settings on the GSAM app, international versions of the phone, and I believe the Verizon phones in the US, that talk about LTE RAM dumps, enabling SMS over IMS. If anybody knows more about this, or a toggle that works on AT&T that allows quick switching of networks (which I believe AT&T does not actually allow), would be great.

    Hope this helps people. To set up new APN...go to Settings->Wireless and Network Settings: More Settings ->MObile Networks->Access Point Names. Then menu button, New APN, and under APN add "wap.cingular" and whatever Name you want. I think I had to wait or reboot after or something.
    Thanked by 2:
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  6. #81  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    and its back
  7. #82  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Pull battery for a hard reset and back to normal.
    Last edited by jay_g; 08-10-2012 at 01:56 PM.
  8. Thread Author  Thread Author    #83  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    I'm on day two of leaving wifi off no matter what - waiting to see if the plummet starts. Next test will be manually disabling LTE.

    I'm putting off the "factory reset and use for a week without apps" last ditch effort in hopes of the OTA with cell radio fixes in it!
  9. #84  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    I updated to the latest firmware today.the attached pictures are showing the battery following the automatic boot up after the firmware update. I used the phone maybe an hour before I went to sleep.woke up with the phone really hot about 6 hours later. I had left mobile data on and I have it set to wcdma only (international s3) I think the phone is constantly downloading data when the drain happens, as the up and down arrows keep going even though I'm not doing anything. By the way, it never happens when I'm on wifi only as I switch to gsm only. So it's definitely a problem with handling 3g. Annoying problem and its getting more prominent nowadays! Update didn't fix the problem!
    [Help][50% SOLVED] LTE = random heavy battery drain aka "plummet"-screenshot_2012-08-11-03-44-54.jpg

    [Help][50% SOLVED] LTE = random heavy battery drain aka "plummet"-screenshot_2012-08-11-03-45-30.jpg
    Last edited by Nazty111; 08-10-2012 at 10:02 PM.
  10. Thread Author  Thread Author    #85  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by Nazty111 View Post
    I updated to the latest firmware today.the attached pictures are showing the battery following the automatic boot up after the firmware update. I used the phone maybe an hour before I went to sleep.woke up with the phone really hot about 6 hours later. I had left mobile data on and I have it set to wcdma only (international s3) I think the phone is constantly downloading data when the drain happens, as the up and down arrows keep going even though I'm not doing anything. By the way, it never happens when I'm on wifi only as I switch to gsm only. So it's definitely a problem with handling 3g. Annoying problem and its getting more prominent nowadays! Update didn't fix the problem!
    I'm not sure you have the same problem as there's no decent battery followed by a significant plummet in your graph. You had some significant screen on time and the awake bar shows something constantly waking up your phone pretty regularly.

    You might want to install GSAM Battery Monitor and see what's causing all that activity. Check the app-sucker section and see power used and wake locks activity by app.
  11. #86  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by jeffreii View Post
    I'm not sure you have the same problem as there's no decent battery followed by a significant plummet in your graph. You had some significant screen on time and the awake bar shows something constantly waking up your phone pretty regularly.

    You might want to install GSAM Battery Monitor and see what's causing all that activity. Check the app-sucker section and see power used and wake locks activity by app.
    I've installed, and waiting for it to happen again.thanks for the tip.
    The significant screen time was earlier when I used it for an hour or so, and then I went to sleep. All apps were closed. I fully charged then rebooted and it happened again as seen in the pic.this time I didn't begin with any use, but when I woke up again it has plummeted until I briefly attached the charger and it stopped draining even though I was using it. So I hadn't started any app. And it doesn't happen all the time. It couldn't be something like whatsapp could it? As it doesn't happen all the time.Just randomly I get high cell standby during my sleep!

    [Help][50% SOLVED] LTE = random heavy battery drain aka "plummet"-screenshot_2012-08-11-13-50-20.jpg
  12. Thread Author  Thread Author    #87  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by Nazty111 View Post
    I've installed, and waiting for it to happen again.thanks for the tip.
    The significant screen time was earlier when I used it for an hour or so, and then I went to sleep. All apps were closed. I fully charged then rebooted and it happened again as seen in the pic.this time I didn't begin with any use, but when I woke up again it has plummeted until I briefly attached the charger and it stopped draining even though I was using it. So I hadn't started any app. And it doesn't happen all the time. It couldn't be something like whatsapp could it? As it doesn't happen all the time.Just randomly I get high cell standby during my sleep!
    Honestly it could be anything. I've gone through all my app settings and made sure nothing is set to constantly update more often than I need it to. There are many apps that will update every 15 minutes if you let them...and if you have multiple of those installed your phone will be waking up constantly and never really deep sleeping, which is where good standby time comes from. GSAM should be enlightening.

    Again though neither of your screenshots have shown really good battery life followed by a sudden plummet as you'll see in mine throughout this thread - so you may just have a general problem which is much easier to fix once you find the culprit(s)!
  13. #88  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by jeffreii View Post
    Honestly it could be anything. I've gone through all my app settings and made sure nothing is set to constantly update more often than I need it to. There are many apps that will update every 15 minutes if you let them...and if you have multiple of those installed your phone will be waking up constantly and never really deep sleeping, which is where good standby time comes from. GSAM should be enlightening.

    Again though neither of your screenshots have shown really good battery life followed by a sudden plummet as you'll see in mine throughout this thread - so you may just have a general problem which is much easier to fix once you find the culprit(s)!
    yeah i know what you mean. im not the type of person that always has to have things pushed immediately. email is on sync every 6 hours, facebook, instagram,pulse etc arent on push. i dont have many other apps except for a few games that send notifications every time i switch the phone on. whatsapp and viber are the only apps that are constantly connected. but as i said, it doesnt happen all the time, and when it does, its the cell radio that shows as the sucker. and in the second screen shots i sent, it was draining from full charge, and it stopped as soon as i connected the charger and pulled it out 2 seconds later. so i cant figure out what it could be.
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by Nazty111 View Post
    yeah i know what you mean. im not the type of person that always has to have things pushed immediately. email is on sync every 6 hours, facebook, instagram,pulse etc arent on push. i dont have many other apps except for a few games that send notifications every time i switch the phone on. whatsapp and viber are the only apps that are constantly connected. but as i said, it doesnt happen all the time, and when it does, its the cell radio that shows as the sucker. and in the second screen shots i sent, it was draining from full charge, and it stopped as soon as i connected the charger and pulled it out 2 seconds later. so i cant figure out what it could be.
    You need to reboot and see if it goes away for awhile - and then comes back after 12 hours or even a couple of days.

    You can't trust the cell radio stat as there's a bug that causes cell radio to report 10x more power usage.
  15. #90  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by jeffreii View Post
    You need to reboot and see if it goes away for awhile - and then comes back after 12 hours or even a couple of days.

    You can't trust the cell radio stat as there's a bug that causes cell radio to report 10x more power usage.
    yeah i know about the misreporting cell radio, but my battery is draining alongside it so its not just misreporting. also it didnt go away after the full charge and reboot, but it did go away after briefly plugging in the charger. ive just got it fully charged now, and gsam battery monitor running, so i'll see how it goes from now. i also uninstalled one or two apps that i wasnt using, and went through all other app settings to make sure theres no random syncing going on. thanks for your help mate, ill report back if i see a change or figure something out.
  16. Thread Author  Thread Author    #91  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by Nazty111 View Post
    yeah i know about the misreporting cell radio, but my battery is draining alongside it so its not just misreporting. also it didnt go away after the full charge and reboot, but it did go away after briefly plugging in the charger. ive just got it fully charged now, and gsam battery monitor running, so i'll see how it goes from now. i also uninstalled one or two apps that i wasnt using, and went through all other app settings to make sure theres no random syncing going on. thanks for your help mate, ill report back if i see a change or figure something out.
    Glad to help.

    Regarding the cell radio bug: I know it's not causing extra battery drain but it is misreporting it. So you have battery drain and you check and see "cell radio" is the culprit...when in fact that stat is misreported and skewing all the other numbers. You still have the battery drain, you just don't know if cell radio is really the problem or not.
  17. #92  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by jeffreii View Post
    Glad to help.

    Regarding the cell radio bug: I know it's not causing extra battery drain but it is misreporting it. So you have battery drain and you check and see "cell radio" is the culprit...when in fact that stat is misreported and skewing all the other numbers. You still have the battery drain, you just don't know if cell radio is really the problem or not.
    Well it definitely goes away when I switch to gsm only. I checked wake locks in gsam and Samsung push services are piping up loads, as well as Google services.and maps. Any idea on what my problem is now? Also how do I get maps to not keep opening in the background and giving my ram?
  18. Thread Author  Thread Author    #93  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by Nazty111 View Post
    Well it definitely goes away when I switch to gsm only. I checked wake locks in gsam and Samsung push services are piping up loads, as well as Google services.and maps. Any idea on what my problem is now? Also how do I get maps to not keep opening in the background and giving my ram?
    I disabled Samsung Push and most other Samsung stuff as well.

    Google Maps - make sure you're not signed into Latitude as it will constantly check and update your location. I also prefer to leave GPS off unless I use maps as I believe any app that checks your GPS location will use Google Maps to do so and the usage will show up as Google Maps.
  19. #94  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by jeffreii View Post
    I disabled Samsung Push and most other Samsung stuff as well.

    Google Maps - make sure you're not signed into Latitude as it will constantly check and update your location. I also prefer to leave GPS off unless I use maps as I believe any app that checks your GPS location will use Google Maps to do so and the usage will show up as Google Maps.
    I don't use latitude, and GPS is always off unless I briefly use it.But there's always some Google network services running as well as maps that return soon after I force close them. Also I don't use Samsung push either as far as I know.How do I disable it?
  20. Thread Author  Thread Author    #95  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by Nazty111 View Post
    I don't use latitude, and GPS is always off unless I briefly use it.But there's always some Google network services running as well as maps that return soon after I force close them. Also I don't use Samsung push either as far as I know.How do I disable it?
    settings / application management

    Go to the app and choose the disable option.
  21. #96  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Quote Originally Posted by jeffreii View Post
    settings / application management

    Go to the app and choose the disable option.
    Found it and disabled Samsung push as well as a bunch of other little things. Phone went the night with couple percent battery down even in wcdma with data off.result! Thanks darling what is Samsung push anyway? Is it specific to push Samsung updates or push notifications in general?
  22. #97  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Update on the newtork switch to HSPA (wap.cingular) from LTE on AT&T. Been going 5 days and no more random battery drains. I can't explain why nazty111 has the problem though on WCDMA, as if I check my phone info (GSAM), it now shows WCDMA only also and I am definitely not having the problem anymore, whether data is on or not, maximum battery drain when the screen is not on is around 2-3%/hour, with bad signal, data on, and sync on. Most of the time now averaging 1%/hr, without the random drains.

    I have the same question nazty111 does, why does maps keep coming on even after disabling GPS. And google services are taking up a bunch of wakes. Is this only related to google account sync settings.
  23. Thread Author  Thread Author    #98  
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    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    Well I just got the plummet again after 3 days of use with ZERO wifi on time. Figured I'd test to see if wifi switching was at all to blame...cross that off the list...

    Let me know how it's going for you guys with the LTE disabled. Has anyone tried this method to force HSPA only, rather than the APN method?

    http://forum.xda-developers.com/show....php?t=1189241
  24. #99  
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    Default Re: Exchanging mine tomorrow - battery plummeting randomly!

    Quote Originally Posted by jcp006 View Post
    I have not had this issue and I am on AT&T. I may be not doing this correctly and it may be overkill. I always hold down the homescreen button and clear everything. I also turn off WiFi when not it use as well as sometimes turning off BT. Can't you also adjust the GPS function as well?
    Hey first I'v heard of holding down the home key. What does that do? Like kill everything running or what. Thanks for the tip
  25. #100  

    Default Re: [Help] Unexplained heavy battery drain...occurs randomly

    I'm on Verizon and my phone did the exact same thing as jeffreii's tonight. Everything was running fine until about 6pm and then a steady plummet from about 65% to 20% over three hours with a corresponding increase in device temperature. I rebooted the phone and now the battery drain has flattened out and the temperature has dropped.

    The phone was on WiFi the whole time.

    So, it's not just a GSM issue.
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