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  1. Thread Author  Thread Author    #1  

    Default Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Before I updated yesterday my phone had good battery life, and the wake time was under 20 mins in a 17hr-36hr span. I could literally have the screen on and play music off the google play music app and the phone would still be asleep according to the battery monitor on the phone. Now if i turn the screen on or play music the phone awake and cannot fall asleep, but when the screen is off and no music is playing then the phone falls to sleep. I have the phone unplugged @ 91% for almost 40 mins and the screen is taking 51% with 26 mins SOT, android system is taking 26% running for 7 mins, android OS is taking 9%, media (which always starts out at the top since the update) is taking 6%, GSM battery monitor is taking 2%, google play services is taking 2%, and com.android.systemui is taking 2%. Can someone please explain to me why android system is now draining my battery way more than it should?
    Last edited by NotJustAPhone; 03-01-2014 at 10:11 AM.
  2. #2  

    Default Re: "Android System" is draining my battery since I updated to kk

    Mine is the same since update.

    Android System and Android OS are sucking the battery

    Sent from my SPH-L720 using AC Forums mobile app
  3. #3  
    dimm0k's Avatar

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    Default Re: "Android System" is draining my battery since I updated to kk

    not sure if there's an easy fix for this, but I was reloading the MK2 ROM over the weekend, as well as wiping before finally getting things just the way I wanted and then loading all my settings and apps. unfortunately I had to wipe again last night because my battery was draining like a whirlpool all day yesterday despite putting the phone into airplane mode. culprit was also the "Android System" using the most battery as listed in the Battery section. after doing a wipe and reloading my crap last night I've been back in business since! highest battery user now is the screen, which I believe is normal.
  4. Thread Author  Thread Author    #4  

    Default Re: "Android System" is draining my battery since I updated to kk

    bdmridgeback Thats terrrible. I don't know what is causing Android System and Android OS to keep the phone up so much
  5. Thread Author  Thread Author    #5  

    Default Re: "Android System" is draining my battery since I updated to kk

    Quote Originally Posted by dimm0k View Post
    not sure if there's an easy fix for this, but I was reloading the MK2 ROM over the weekend, as well as wiping before finally getting things just the way I wanted and then loading all my settings and apps. unfortunately I had to wipe again last night because my battery was draining like a whirlpool all day yesterday despite putting the phone into airplane mode. culprit was also the "Android System" using the most battery as listed in the Battery section. after doing a wipe and reloading my crap last night I've been back in business since! highest battery user now is the screen, which I believe is normal.
    I don't think that there is one. I wish apps like "wake lock Detector" worked on KitKat
  6. #6  

    Default Re: "Android System" is draining my battery since I updated to kk

    Same here (Sprint)... a temporary fix was the completely disable Google Now (as suggested in other forums) but that didn't last long. I actually had my phone plugged in last night (20% remaining) and it drained completely while it was plugged in! It shutdown / powered off because it had no juice, then started to charge.

    I believe it's not going into deep sleep. Possibly because of the bluetooth connectivity with my Galaxy Gear, I dunno.. I doubt it's the Gear because I'm seeing a lot of posts about the battery issue after the KitKat update.

    GSam Battery Monitor --> msm_hsic_host wakelocks is taking up a considerable amount of time preventing the phone from going into deep sleep.
  7. Thread Author  Thread Author    #7  

    Default Re: "Android System" is draining my battery since I updated to kk

    Quote Originally Posted by Shane Kinsch View Post
    Same here (Sprint)... a temporary fix was the completely disable Google Now (as suggested in other forums) but that didn't last long. I actually had my phone plugged in last night (20% remaining) and it drained completely while it was plugged in! It shutdown / powered off because it had no juice, then started to charge.

    I believe it's not going into deep sleep. Possibly because of the bluetooth connectivity with my Galaxy Gear, I dunno.. I doubt it's the Gear because I'm seeing a lot of posts about the battery issue after the KitKat update.

    GSam Battery Monitor --> msm_hsic_host wakelocks is taking up a considerable amount of time preventing the phone from going into deep sleep.
    deleted_wake_locks and man_hsic_host wakelocks are preventing my phone from going into sleep. I don't even know what it causing them to awake the phone.
  8. #8  
    UJ95x's Avatar

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    Default Re: "Android System" is draining my battery since I updated to kk

    Quote Originally Posted by dllebandroid View Post
    I don't think that there is one. I wish apps like "wake lock Detector" worked on KitKat
    GSam battery monitor still works on KK I believe

    Sent from my Galaxy S4 running SlimKat 4.4.2
    Everything in this post is 100% accurate...I think

    R.I.P. Motorola...and what could have been the best smartphone line ever
  9. Thread Author  Thread Author    #9  

    Default Re: "Android System" is draining my battery since I updated to kk

    Quote Originally Posted by UJ95x View Post
    GSam battery monitor still works on KK I believe

    Sent from my Galaxy S4 running SlimKat 4.4.2
    It works to a degree. I need the partial wake lock that "wakelock detector" can do. Google change the permissions in KK so i would have to root my phone to get that feature.
  10. #10  
    UJ95x's Avatar

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    Default Re: "Android System" is draining my battery since I updated to kk

    Quote Originally Posted by dllebandroid View Post
    It works to a degree. I need the partial wake lock that "wakelock detector" can do. Google change the permissions in KK so i would have to root my phone to get that feature.
    I thought it worked without root. In that case it's the same as WLD. Good thing I have root

    Sent from my Galaxy S4 running SlimKat 4.4.2
    Everything in this post is 100% accurate...I think

    R.I.P. Motorola...and what could have been the best smartphone line ever
  11. Thread Author  Thread Author    #11  

    Default Re: "Android System" is draining my battery since I updated to kk

    Quote Originally Posted by UJ95x View Post
    I thought it worked without root. In that case it's the same as WLD. Good thing I have root

    Sent from my Galaxy S4 running SlimKat 4.4.2
    lol it doesn't work unfortunately.
  12. #12  

    Default Re: "Android System" is draining my battery since I updated to kk

    What are you location services settings. I use to have wifi/cell/gps and my Android System was very high and I had poor batter life. I turned wifi/cell off and I am just using GPS and it has greatly improved.
  13. Thread Author  Thread Author    #13  

    Default Re: "Android System" is draining my battery since I updated to kk

    Quote Originally Posted by trublond View Post
    What are you location services settings. I use to have wifi/cell/gps and my Android System was very high and I had poor batter life. I turned wifi/cell off and I am just using GPS and it has greatly improved.
    my location services are turned off.
  14. #14  

    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Anyone figure this out? I have the same issue. Factory reset did not fix.

    Posted via Android Central App
  15. #15  
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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    My S4 received the Kit Kat update and once it rebooted the lock screen was freezing and within 1 hour the battery went from 90% to 17%! I noticed the GPS icon at top left was flashing rapidly as if it was unable to locate reference points. I switched off the GPS and all seemed well as long as it remained off. I use hands free with a Bluetooth headset when driving so the first time I made a call the "driving mode" activated the GPS again and the phone was back to messed up. The only way I have been able to correct the problem is to ensure GPS is off, hands free is off and then pull the battery.

    I did stop by a Sprint tech store and the tech was very helpful. He learned a bit with my experience and he informed me of all the other issues. Sprint has instructed the techs to NOT attempt to roll back the system as the phone will brick. Sprint and Samsung are supposedly working on a patch and as long as you have reported your issue to Sprint you should receive a patch within a coupe weeks. If you have not yet upgraded to Kit Kat my advice is DO NOT DO SO until the issues have all been resolved. Fortunately my wife's S4 did not receive an update notification until a few days after mine so we know not to proceed. With luck this will be corrected quickly, all else seems to work as long as the GPS remains off.
  16. #16  
    dimm0k's Avatar

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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Quote Originally Posted by fppc View Post
    My S4 received the Kit Kat update and once it rebooted the lock screen was freezing and within 1 hour the battery went from 90% to 17%! I noticed the GPS icon at top left was flashing rapidly as if it was unable to locate reference points. I switched off the GPS and all seemed well as long as it remained off. I use hands free with a Bluetooth headset when driving so the first time I made a call the "driving mode" activated the GPS again and the phone was back to messed up. The only way I have been able to correct the problem is to ensure GPS is off, hands free is off and then pull the battery.

    I did stop by a Sprint tech store and the tech was very helpful. He learned a bit with my experience and he informed me of all the other issues. Sprint has instructed the techs to NOT attempt to roll back the system as the phone will brick. Sprint and Samsung are supposedly working on a patch and as long as you have reported your issue to Sprint you should receive a patch within a coupe weeks. If you have not yet upgraded to Kit Kat my advice is DO NOT DO SO until the issues have all been resolved. Fortunately my wife's S4 did not receive an update notification until a few days after mine so we know not to proceed. With luck this will be corrected quickly, all else seems to work as long as the GPS remains off.
    interesting... how will we know the issues are fixed if we don't update to Kit Kat?
  17. Thread Author  Thread Author    #17  

    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Quote Originally Posted by fppc View Post
    My S4 received the Kit Kat update and once it rebooted the lock screen was freezing and within 1 hour the battery went from 90% to 17%! I noticed the GPS icon at top left was flashing rapidly as if it was unable to locate reference points. I switched off the GPS and all seemed well as long as it remained off. I use hands free with a Bluetooth headset when driving so the first time I made a call the "driving mode" activated the GPS again and the phone was back to messed up. The only way I have been able to correct the problem is to ensure GPS is off, hands free is off and then pull the battery.

    I did stop by a Sprint tech store and the tech was very helpful. He learned a bit with my experience and he informed me of all the other issues. Sprint has instructed the techs to NOT attempt to roll back the system as the phone will brick. Sprint and Samsung are supposedly working on a patch and as long as you have reported your issue to Sprint you should receive a patch within a coupe weeks. If you have not yet upgraded to Kit Kat my advice is DO NOT DO SO until the issues have all been resolved. Fortunately my wife's S4 did not receive an update notification until a few days after mine so we know not to proceed. With luck this will be corrected quickly, all else seems to work as long as the GPS remains off.
    How do you know if Sprint and Samsung are working on a patch?
  18. #18  

    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Add me to the list. My phone's been exactly the same. I was loving the battery life on this until Kit Kat. Now rather than 1 1/2 or so days with normal use I'm getting about 9 hours. My wife did the update and hers is even worse.
  19. #19  
    ToddK's Avatar

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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Ditto - the first 2-3 days were okay , but then the wheels fell off and I'm getting 8-9 hours tops...

    ...and the kernel is drawing 86-89% at times... used to be 30-40%

    Sent from my SPH-L720 using Tapatalk
  20. #20  
    ToddK's Avatar

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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    The kernel is now up to 91%!! Battey life has gone from great, to, bad, to horrible... but no single app is drawing over 2%... Wish I could figure out what was destroying the battery -

    Sent from my SPH-L720 using Tapatalk
  21. Thread Author  Thread Author    #21  

    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Quote Originally Posted by ToddK View Post
    The kernel is now up to 91%!! Battey life has gone from great, to, bad, to horrible... but no single app is drawing over 2%... Wish I could figure out what was destroying the battery -

    Sent from my SPH-L720 using Tapatalk
    its like that on my phone as well. i used to get 5 hrs of SOT on average and now i struggle to get 3 1/2 hrs of SOT because of the kernel
  22. #22  
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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Nice to know I'm not the only one... Wish we could figure out what was causing it, though .

    Glad I have a spare battery. ;-)

    Sent from my SPH-L720 using Tapatalk
  23. #23  
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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Quote Originally Posted by fppc View Post
    My S4 received the Kit Kat update and once it rebooted the lock screen was freezing and within 1 hour the battery went from 90% to 17%! I noticed the GPS icon at top left was flashing rapidly as if it was unable to locate reference points. I switched off the GPS and all seemed well as long as it remained off. I use hands free with a Bluetooth headset when driving so the first time I made a call the "driving mode" activated the GPS again and the phone was back to messed up. The only way I have been able to correct the problem is to ensure GPS is off, hands free is off and then pull the battery.

    I did stop by a Sprint tech store and the tech was very helpful. He learned a bit with my experience and he informed me of all the other issues. Sprint has instructed the techs to NOT attempt to roll back the system as the phone will brick. Sprint and Samsung are supposedly working on a patch and as long as you have reported your issue to Sprint you should receive a patch within a coupe weeks. If you have not yet upgraded to Kit Kat my advice is DO NOT DO SO until the issues have all been resolved. Fortunately my wife's S4 did not receive an update notification until a few days after mine so we know not to proceed. With luck this will be corrected quickly, all else seems to work as long as the GPS remains off.
    It seems the updaye breaks the gps this is true with at&t as well which simply means its a samsung issue it seems the only fix is to factory reset twice and let it charge with the phone off

    must have unlocked boot loaders!!
  24. #24  
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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Quote Originally Posted by ToddK View Post
    Nice to know I'm not the only one... Wish we could figure out what was causing it, though .

    Glad I have a spare battery. ;-)

    Sent from my SPH-L720 using Tapatalk
    Ok go to settings more find battery and see which app is using the most power

    must have unlocked boot loaders!!
  25. #25  
    metle_geek's Avatar
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    Default Re: Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat

    Should look something to that effect dont worry about the red its a custom rom for at&t gs4 I might of migrated here by accident as im seeing sprint??

    must have unlocked boot loaders!!
    Attached Thumbnails Attached Thumbnails Sprint Galaxy S4: "Android System" is draining my battery since I updated to KitKat-1395154706801.jpg  
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