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My English might be poor, hopefully this thread help. I have flashed stock ICS in my tab baseband XXLQ8. After fully recharged my battery, I found that the performance was not tolerable since in HC 3.2, it only drains 2-3% battery life per 24 hrs in a sleep mode. Unlike HC 3.2, ICS 4.0.4 (baseband XXLQ8, some addressed as Italian stock ROM) drains 1-2% per hour in sleep mode. My battery life dropped 7% in 5 hours without any usage (off screen).
Later on I installed CPU SPY and BetterBatteryStats suggested by some of the posts here. Having the same problem, my tab could barely get into the Deep Sleep state when it was in sleep mode. Instead Deep Sleep, it still works under 216 MHz.
Somebody here suggested it was the Push Service in Samsung App, Google+ or something. Some even found that it was the GSM problem. With the sim card slotted in, the problem gone. However we are pretty sure the effect of the problem is battery drainage in sleep mode. We found that there is a kernel wakelock called l3_hsic all the while running in background that prevents the tab from going into Deep Sleep.
There are several possibilities causing this to happen. Apps creating wakelock maybe, some suggested Google+ with the sync or upload function enable; hey, wait! I don’t have a Google + account signed in, could that still be the problem? Some say Samsung App Push Service causes it to happen, so I just give it a try. Launch the Samsung App, go to the Settings and disable the Push Service. Put the tab to sleep for an hour and check back. Battery drainage still occurs since it dropped 2% for an hour. What a disappointment. But wait, this time I get into the tab Settings>Application>All and find the Samsung Push Service. Checked there were permissions such as creating wakelock and prevent tablet from sleeping. Tap on it and uninstall the app. Put my tablet into sleep again.
After 3 hours, turn on the tab and check back with the battery stats. CPU SPY shows that my tab could get into Deep Sleep state. My battery life did not even drop a single percent. Today is my third day from the last charge. Thanks god, problem solved.
HIT THANKS Button if this helped you.
It doesn't work for me. Still looking
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
sgabytzu said:
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
Click to expand...
Click to collapse
Is that the "battery drains while on airplane mode" issue? I have it too :crying:
it doesn't work for me bro..
for me, i noticed that google maps (auto update on my place, that friends can see where i am) Since I enable auto location my place, i get no deel sleep, when i have disable it, i have 100% deepsleep
I disabled Maps to fix my battery drainage issue. If I need to use maps I just enable it.
Sent from my DROID RAZR using xda premium
The solution to the l2_hsic is to insert a uSIM.
Nevertheless the deep sleep problem will remain. Sorry!
hello,
can we flash another kernel ?
I have the same issue with my galaxy tab 10.1 running Stock ICS 4.04. Something is interrupting deep sleep mode and the battery consuption is 2% per hour in standby mode.
After rebooting it seems to be OK but later and i dont know when/how/why... stops entering deep sleep. I think this problem needs a revision by Samsung but i am sure that they have forgotten us.
I've seen a firmware update on some other thread, for our tablets... but it seems we're not getting it OTA
Another Tips for slove it
I found another solution for this issue in this post:
Finale Solution for Battery Drain issue
l2_hsic wakelock explained.
sgabytzu said:
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
Click to expand...
Click to collapse
Please check. :angel:
http://forum.xda-developers.com/showthread.php?t=2474923
Maps Samsung apps Google plus
They sometimes make device wake during sleep
I disabled them all
So, yesterday I noticed a sudden battery drain on my nexus 4. After checking battery it showed that AndroidOS takes over about 50% of the battery usage. It also showed that time awake was pretty much the same as the amount of time since I unplugged the phone, even though I kept my phone in sleep mode for the most of the day. After some research I downloaded better battery stats and it showed that from the moment I turn the screen off a process called suspend_backoff runs pretty much the entire time. Eventually I got it down to wifi. If I turn off wifi there are no processes running after the screen is turned off (or if there are they are 30 seconds tops), but the moment I turn wifi on suspend_backoff runs pretty much the entire time screen is off. I tried removing all of my apps, as well as doing factory reset but nothing helps. The moment I turn wifi ON this suspend_backoff consumes pretty much all the time during screen off period. Is anyone experiencing anything like this ? I have 4.2.2 on the phone and I havent' seen this extreme drain until just yesterday.
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
hihihoho said:
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
Click to expand...
Click to collapse
how did you narrow it down? Im having the same problem!
This is caused by a kernel wakelock. A bad mobile connection make battery drain worse... using WLAN nearly fixes this problem.
Thought this problem has got fixed in 4.2.2, at least battery life got improved and the wakelock reduced.
If it is appearing since yesterday, it is triggered by a app often waking the phone up using mobile data (that's why fixed with WLAN) and prevent the phone from getting into deep sleep as fast as it should.
hope i could help.
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
AW: Battery drain on nexus 4 since yesterday
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
Click to expand...
Click to collapse
as i said before, an app needs data, so it starts callung the kernel wakelock... this one causes tje drain, not the app itself
Sent from my Nexus 7 using xda app-developers app
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
Click to expand...
Click to collapse
Yeah, definitely not user apps. I did full reset on the phone to factory settings, no user apps. Even tried disabling Google Play and Google store after the reset. Still the same. The only thing that gets rid of it is disabling WiFi.
hihihoho said:
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
Click to expand...
Click to collapse
When did you start noticing this ? Has it been for a while or just recently ? I first noticed it yesterday (had the phone for a bit over a month now, didn't see any issues until just yesterday)
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
Click to expand...
Click to collapse
What is the difference between greenify and limit background apps in developers options?
AW: Battery drain on nexus 4 since yesterday
stop discussing, use search instead... http://forum.xda-developers.com/showthread.php?t=1999368
like i told you 3times now.... it's the wakelock
Sent from my Nexus 7 using xda app-developers app
indoh said:
stop discussing, use search instead... http://forum.xda-developers.com/showthread.php?t=1999368
like i told you 3times now.... it's the wakelock
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yeah, it's clear that it's the wakelock. What's not clear is why. Also it's not the msm_hsic_host that the forum link you sent refers to. I don't have a problem with msm_hsic, that one barely takes any time during the day (maybe 30 seconds during several hours of standby). The wakelock causing this particular issue is "suspend_backoff" wakelock which supposedly happens when there is a sequence of sleep/wake calls too close together so the system decides to keep it awake. I was unable to find what exactly is causing the issue, even after restoring to the factory settings I kept seeing the same problem.
Anyway, I was able to "resolve" it by installing JuiceGuard app and setting it so it disables wifi when the screen is off. wakelock is gone now and my battery usage is back to normal.
I only get the suspend backoff wake lock when I'm connected to the university Wifi. When I'm at home, everything is fine, no suspend backoff. So my guess is that the Wifi encryption at university is different and causing a succession of close "awake" and cause wake lock.
I did factory reset like 3 times and it still there.
I'll try disable Wifi on Monday and see how it goes.
Same here, when wifi disabled the wakelock doesn't occur.
I have tried almost all of the kernels and non of them seem to help.
hihihoho said:
I only get the suspend backoff wake lock when I'm connected to the university Wifi. When I'm at home, everything is fine, no suspend backoff. So my guess is that the Wifi encryption at university is different and causing a succession of close "awake" and cause wake lock.
I did factory reset like 3 times and it still there.
I'll try disable Wifi on Monday and see how it goes.
Click to expand...
Click to collapse
Interesting... Maybe it is encryption. One thing with my Wifi is that it doesn't use password, but MAC list instead. It may indeed be an issue with different wifi encryption types.
OP do you have maps 6.14 on your phone? Mine kept switching on location reporting for a while and it woke my phone 344 times last night. I've been struggling with the same wake lock issues. I'm going to recharge (again) with maps disabled and see if that helps.
Sent from my Nexus 4 using Tapatalk 2
Check your Google account sync settings... In settings
The clowns may have left you a lovely gift there without telling you or asking any kind of permission.
The latest Maps was giving me horrible battery drain, on WiFi. I'd sleep for six hours with a fully charged phone and wake up with 10% left. it even enabled itself when. I disabled it in settings. I converted it to a user app by moving it to /data/app and greenified it. Seemed to have solved all of my issues with the suspend back off wake lock.
Download greenify
Sent from my Nexus 7 using Tapatalk 2
For some weird reason, I was also having serious battery drain suddenly since yesterday.
Turned out it was maps, and disabling Google network locations hugely increased battery life
Sent from my Nexus 4
I have tried to disable everything and even did a hard reset while disabling all unnecessary "functions" that samsung and google adds, but still when using the phone with screen on and just browsing reddit Android OS is above Screen and all other apps. While the phone is off it never hits deep sleep and is usually 90% awake.
I have disabled Samsung Push Service, but haven't seen any improvement. I have disabled Location Services and all the other stuff suggested in other threads with no luck.
I have attached AlarmManager.txt since that's what other people suggest, but I cannot understand how to properly read the file.
If anyone can help me fix this battery drain, it would help me a lot. Thanks.
Try wakelock detector to see which app/process is puling down the battery power.
My phone had the same problem last few days.
However i just format the internal storage & reflash os. I don't really care as i've backed up my apps using TB.
At least it solve mine.
What solved it for me was a complete wipe, flash back to stock then install recovery and custom rom. Not had any issues since. - think it's an anomaly within the OS.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Before you do a reset, just try out the search Funktion in this forum.
Reset won't help!
Search for AndroidOS Bug or read my other posts. Thx
Gesendet von meinem SM-N9005 mit Tapatalk
buell47 said:
Before you do a reset, just try out the search Funktion in this forum.
Reset won't help!
Search for AndroidOS Bug or read my other posts. Thx
Gesendet von meinem SM-N9005 mit Tapatalk
Click to expand...
Click to collapse
Already did that in the first 30 minutes of googling. I don't want to root because I will lose my warranty. My colleague's Note 3 is a bit older on the same firmware, but has absolutely no battery drain. He's had his phone on for soon 2 days and it still had 30% of battery left. What could this mean? I have disabled everything he has and it still made no difference.
May be this will help.
http://forum.xda-developers.com/showpost.php?p=49200717&postcount=6
I tried it an hour ago and my wake time go down from 90% to 13%.
Yes, we have here a lot of threads with the same issue.
Right know i posted my recommendation about this issue in the other thread
Try it out
Gesendet von meinem SM-N9005 mit Tapatalk
muhammad.ali123 said:
May be this will help.
http://forum.xda-developers.com/showpost.php?p=49200717&postcount=6
I tried it an hour ago and my wake time go down from 90% to 13%.
Click to expand...
Click to collapse
I did the same. It worked for 45 minutes straight (80% deep sleep, 20% awake), then when I woke the phone up after those 45 minutes to check battery stats and turned the screen off manually again, it stopped deep sleeping right that moment.
EddieN said:
I did the same. It worked for 45 minutes straight (80% deep sleep, 20% awake), then when I woke the phone up after those 45 minutes to check battery stats and turned the screen off manually again, it stopped deep sleeping right that moment.
Click to expand...
Click to collapse
in this case check your phone, what app you've installed, what app has auto-sync.... blah blah...
EddieN said:
I did the same. It worked for 45 minutes straight (80% deep sleep, 20% awake), then when I woke the phone up after those 45 minutes to check battery stats and turned the screen off manually again, it stopped deep sleeping right that moment.
Click to expand...
Click to collapse
My stats after whole night is 3% awake, with 10 hours of deep sleep and 20 minutes wake time.
May be there is an application causing problem. Check with WLD and remove the one with more wake time.
muhammad.ali123 said:
My stats after whole night is 3% awake, with 10 hours of deep sleep and 20 minutes wake time.
May be there is an application causing problem. Check with WLD and remove the one with more wake time.
Click to expand...
Click to collapse
Hi Muhammad, when I use WLD or Betterbattreystats I usually get nlpwakeclock collector or another wakeclock, it never specifies if a certain app is causing it to stay awake.
Any suggestions on what to do to find out?
-Mohamed Gharib
---------- Post added at 05:46 PM ---------- Previous post was at 05:34 PM ----------
SLAiNTRAX said:
I have tried to disable everything and even did a hard reset while disabling all unnecessary "functions" that samsung and google adds, but still when using the phone with screen on and just browsing reddit Android OS is above Screen and all other apps. While the phone is off it never hits deep sleep and is usually 90% awake.
I have disabled Samsung Push Service, but haven't seen any improvement. I have disabled Location Services and all the other stuff suggested in other threads with no luck.
I have attached AlarmManager.txt since that's what other people suggest, but I cannot understand how to properly read the file.
If anyone can help me fix this battery drain, it would help me a lot. Thanks.
Click to expand...
Click to collapse
Hello, have you found a solution, I have the same exact problem as you.
SLAiNTRAX said:
I have tried to disable everything and even did a hard reset while disabling all unnecessary "functions" that samsung and google adds, but still when using the phone with screen on and just browsing reddit Android OS is above Screen and all other apps. While the phone is off it never hits deep sleep and is usually 90% awake.
I have disabled Samsung Push Service, but haven't seen any improvement. I have disabled Location Services and all the other stuff suggested in other threads with no luck.
I have attached AlarmManager.txt since that's what other people suggest, but I cannot understand how to properly read the file.
If anyone can help me fix this battery drain, it would help me a lot. Thanks.
Click to expand...
Click to collapse
Try this, turn phone off and take out battery for 5 minutes. Put battery back in phone and charge full.
Also you will get Loads of Battery saving tips from my thread here - http://forum.xda-developers.com/showthread.php?t=2579075
mogharib said:
Hi Muhammad, when I use WLD or Betterbattreystats I usually get nlpwakeclock collector or another wakeclock, it never specifies if a certain app is causing it to stay awake.
Any suggestions on what to do to find out?
-Mohamed Gharib
---------- Post added at 05:46 PM ---------- Previous post was at 05:34 PM ----------
Hello, have you found a solution, I have the same exact problem as you.
Click to expand...
Click to collapse
No solution. After 4 hours idle I only have 65% left and android OS is the biggest culprit above screen on. I'm thinking of trying the beta kitkat rom.
I solved my battery drain by disabling google location access - for some reason google services continued trying to access location and were keeping the device awake, an hour of idle leached away like 5% of battery, which is usually what I get drained in a day. I have still left "power efficient" location to Android - using only wifi, but have disabled location in the google specific settings, then reboot and voila.
Solved for my Note 3 N9005
I tried all the gimmicks on this thread and many else. Even turning everything off (and thus crippling the functionality of the phone) didn't help.
Then I tried a couple of battery saver apps and one of them seems to have done the trick.
Easy Battery Saver.
Now there's no 'keep awake' time in Battery -> Android OS. None.
Hope this helps!
larson80 said:
I tried all the gimmicks on this thread and many else. Even turning everything off (and thus crippling the functionality of the phone) didn't help.
Then I tried a couple of battery saver apps and one of them seems to have done the trick.
Easy Battery Saver.
Now there's no 'keep awake' time in Battery -> Android OS. None.
Hope this helps!
Click to expand...
Click to collapse
Thanks, it's a good idea to try apps (if they help) that non-rooted users can try. What kind of settings are you using with Easy Battery Saver?
Took me a while to figure it out but for me Sview case is causing big Android OS battery drain on 4.3. It keeps running a w1_bus_master1 process that tops cpu usage and is draining the battery. You can see it if you enable show cpu usage in developer options. I guess its used to detect opening and closing the case but its usage is insane. As soon as i take the case off the process is gone and Android OS stops eating the battery.
Sent from my SM-N9005 using xda premium
altbla said:
Took me a while to figure it out but for me Sview case is causing big Android OS battery drain on 4.3. It keeps running a w1_bus_master1 process that tops cpu usage and is draining the battery. You can see it if you enable show cpu usage in developer options. I guess its used to detect opening and closing the case but its usage is insane. As soon as i take the case off the process is gone and Android OS stops eating the battery.
Sent from my SM-N9005 using xda premium
Click to expand...
Click to collapse
You use the original samsung case?
Hi, I have problem with wakelocks which keep my tab awake all te time. Better battery stats shows 12 hrs wakelock form power manager service but in parital wakelocks there is only ca 1hr wakelock from entry refresh wakelock (google search). Im using official CM and leanKernel, kitkat. Does anyone know how to soove the problem?
Thanks in advice.
Sent from my Nexus 7 using xda app-developers app
Have the exact same problem and i cannot figue out whats causing it.
I will now greenify each app one by one althoug i have the feeling it in the kernel itself.
twped said:
Have the exact same problem and i cannot figue out whats causing it.
I will now greenify each app one by one althoug i have the feeling it in the kernel itself.
Click to expand...
Click to collapse
I think I have figured out. My guess is that it was google now, because i disabled it in launcher settings (long tap on wallpaper) and now the tablet sleeps, only wakelock was/is wlan, but its because my wifi is turned on all the time. I guess that because google now was listening for "ok google" (at least mine) all the time it was at min cpu state and maybe it didn't show up at partial wakelock because it was only connecting to web over some time.
Sent from my Nexus 7 using xda app-developers app
I'm seeing it on my old ICS HTC phone. It's killing it, my Nexus 7 is having issues now too but nothing like my phone.
An answer but not the answer you're hoping for
I know this is months old but I couldn't find an answer on the xda forums from a quick search but the wakelock detector website and thought I'd post it for anyone else:
The PowerManagerService wakelock
This wakelock shows as a sum of the partial wakelocks on many phones. If this wakelock is #1 go to the Partial Wakelocks to find out more.
Click to expand...
Click to collapse
So, you should go the the partial wake locks tab and look at what's going on there.
is that still true for the Android 8?
lineageos 17 (lineage-17.1-20211110-UNOFFICIAL-a3y17lte.zip)
the new rom started out great...
but for like a couple of days now i have a drop in battery endurance.
the battery drain is like 6% per hour.
i installed betterbatterystats and see that "awake with screen off" is usually over 90%.
the partial wakelocks show nothing above 0%.
so i have no clue where this comes from.
i also cleared the cache for google service but no change.
Setup: running latest stock image (mhc19i). Rooted, xposed, ElementalX kernel with ghost pepper script, and I run naptime with aggressive Doze.
Issue: fell asleep with my phone around 50% battery remaining. Woke up seven hours later and it had 30 something. I typically don't see more than 1-2% idle drain over night so this got my attention. I checked better battery stats and I obviously have a wakelock issue. Not sure what it could be. Powermanagerservice was running at something ridiculously high, like 96%. Audiomix is the other wakelock running rampid. See screenshots below. Any input appreciated!
Pain-N-Panic said:
Setup: running latest stock image (mhc19i). Rooted, xposed, ElementalX kernel with ghost pepper script, and I run naptime with aggressive Doze.
Issue: fell asleep with my phone around 50% battery remaining. Woke up seven hours later and it had 30 something. I typically don't see more than 1-2% idle drain over night so this got my attention. I checked better battery stats and I obviously have a wakelock issue. Not sure what it could be. Powermanagerservice was running at something ridiculously high, like 96%. Audiomix is the other wakelock running rampid. See screenshots below. Any input appreciated!
Click to expand...
Click to collapse
Have you tried rebooting and then monitoring it to see if it happens again? It could just be a one-time bug, you'd need to reboot to confirm that though.
I was thinking that as well. I did recently reboot. I'm going to accumulate a good amount of up time and then check the stats again. As of now, battery drain seems to be normal.
Something is still keeping my phone awake while the screen is off...
Pain-N-Panic said:
Something is still keeping my phone awake while the screen is off...
Click to expand...
Click to collapse
I've seen this Audio Mix wakelock happen before on the OnePlus One, from memory I think it was kernel related, so switching kernels might be worth a try. You could also try using Wakelock Detector to see if it'll shed any more light on it, maybe it's an app rather than the kernel.
Hmm....think I solved my issue. I got audiomix wakelock to completely disappear. Simply going into settings and turning off all notification sounds did the trick. For me it's not an issue, however, for others who don't constantly keep their device on vibrate I could see this being a massive dilemma. I'm assuming "powermanagerservice" is a normal wakelock to observe?
Pain-N-Panic said:
Hmm....think I solved my issue. I got audiomix wakelock to completely disappear. Simply going into settings and turning off all notification sounds did the trick. For me it's not an issue, however, for others who don't constantly keep their device on vibrate I could see this being a massive dilemma. I'm assuming "powermanagerservice" is a normal wakelock to observe?
Click to expand...
Click to collapse
Yes, powermanagerservice is perfectly normal for when the phone is in use (or some background operation is running). You'll see it roughly correlates with your screen-on time.
I recently decided to check the huge battery drain during night and I found out that my phone would not go in deep sleep. Can anyone please help with that? Also, the 'jio' app I have been using was installed 50 days back and the battery drain similar before that too. Would be really great if I could find a solution for the deep sleep issue. I am trying to load the screenshots of betterbatterystats but not able to.
vikalp4jain said:
I recently decided to check the huge battery drain during night and I found out that my phone would not go in deep sleep. Can anyone please help with that? Also, the 'jio' app I have been using was installed 50 days back and the battery drain similar before that too. Would be really great if I could find a solution for the deep sleep issue. I am trying to load the screenshots of betterbatterystats but not able to.
Click to expand...
Click to collapse
Use gsam form the play store to find out what app is keeping your phone awake.
Uninstall said app.