Develop Bugs

Android system - partial wake lock - one solution found

I have my phone running 99.6% of the time in spare parts and it shows android system as the culprit holding a partial wakelock.
so my question is, how do i fix this? i've tried a factory reset three times, am updated to 1.21 ota and have slowly started to reintegrate apps but it always starts again and always after a different app.
i'm getting pretty frustrated anyone got any ideas?
UPDATE In my case it was network time abusing wireless location service that was causing the problem and hence the reason a factory reset didnt solve it, i switched off network time and voila!

just to clarify, no live wallpapers, and phone is in airplane mode to avoid any data usage drainig the battery.
i have got beautiful widgets homescreen small clock and pure cal widget installed at the moment but even when i uninstall them it doesnt fix it, also im running launcher pro 0.4.2 but also had the problem when i reverted to sense.
and i have read every other thread here about battery life that i could find but no-one seems to have this problemo

anyone with any advice on why my phone wont sleep?

A long shot, but go in to Mobile Settings and untick Enable always-on mobile data.

Philosoma said:
A long shot, but go in to Mobile Settings and untick Enable always-on mobile data.
Click to expand...
Click to collapse
ok cool, giving that i try now but i had been leaving it in airplane mode to try and take the vagaries of data out of the equation.
this started about a week ago and i really noticed it when i was in a 6 hour long meeting and my battery basically draines 60% even though the phone was in airplane mode

ok tried that but with my phone just factory reset, airplane mode and no apps installed other than spare parts it's showing running 94.1 % of the time and all of it is android system.
that cant be right
i have restored data, maybe i shouldnt restore data either but that just seems plain crazy

Re: Android system - partial wake lock
What exact foreground and background processes/services do you have running when this is happening, any idea?
Apps like System Panel can show you them and some useful other details. That is certainly too high.
-------------------------------------
- Sent via my HTC Desire -

th3 said:
What exact foreground and background processes/services do you have running when this is happening, any idea?
Apps like System Panel can show you them and some useful other details. That is certainly too high.
-------------------------------------
- Sent via my HTC Desire -
Click to expand...
Click to collapse
ok right now there is
com.android.syncml.service
sense
market
messages
people
rss reader
syncml provider
sys panel
touch input
updater
and then a load of inactive cached applications
do you see anything unusual there?

ok so i downloaded system app and killed all apps except excluded and sytem apps and my running usage has gone down, now thats no suprise in and of itself but now i need to see if it stays down.
i've just checked again and the percentage is still going down, so it's either an inactive app which i didnt list ( is that even possible if its inactive) or one of the items i listed above.
has anyone got any thoughts.

What do the logs say upon going to standby? (Use aLogcat to watch/save system log).

I had same problem I tried the turning off network always on to off, didn't change anything. the thing that worked for me was turning off my flickr account!? For some reason it kept my calendar awake so keeping system from sleeping, don't ask me why as I can't figure it out, though since doing this I'm now getting up to 2 days of average use from the battery. Also I've done the usual of reducing the different accounts sync timings etc.
Have you typed *#*#4636#*#* into the phone key pad to look at what is happening? This can give valuable info on what's draining the battery.

Jazd71 said:
I had same problem I tried the turning off network always on to off, didn't change anything. the thing that worked for me was turning off my flickr account!? For some reason it kept my calendar awake so keeping system from sleeping, don't ask me why as I can't figure it out, though since doing this I'm now getting up to 2 days of average use from the battery. Also I've done the usual of reducing the different accounts sync timings etc.
Have you typed *#*#4636#*#* into the phone key pad to look at what is happening? This can give valuable info on what's draining the battery.
Click to expand...
Click to collapse
I have the same problem as OP since the latest update. The *#*#4636#*#* code is not helping in this case. The partial wake lock is displayed as Android System - which doesn't tell me anything.
I read something about the Calendar issues but I am unable to stop the calendar in running processes.
How did you solve your problem?

ferus said:
I have the same problem as OP since the latest update. The *#*#4636#*#* code is not helping in this case. The partial wake lock is displayed as Android System - which doesn't tell me anything.
I read something about the Calendar issues but I am unable to stop the calendar in running processes.
How did you solve your problem?
Click to expand...
Click to collapse
Ok i seem to have had some luck since last night though i'm not sure of the exact reason.
i did as th3 said and downloaded system monitor and then killed all background active and inactive tasks and that seems to have solved the problem. I have no idea why that would be the case though and i am watching it carefully to see if it stays fixed.
i dont have a flickr account setup

djet said:
What do the logs say upon going to standby? (Use aLogcat to watch/save system log).
Click to expand...
Click to collapse
Djet, I installed alogcat and have found all references to wakelock, rather than post the entire log
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'NetworkLocation Check Location' activated (minState=0)
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'NetworkLocation Check Location' activated (minState=0)
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'keyguardWakeAndHandOff' activated (minState=0)
D/PowerManagerService( 77): wakelock: FULL_WAKE_LOCK 'keyguard'ACQUIRE_CAUSES_WAKEUP activated (minState=3)
there are also some entries in red like this one
E/vold ( 53): Unable to lookup media '/devices/platform/msm_sdcc.1/mmc_host/mmc0/mmc0:0001'
and a load of errors to do with global search etc but this is all pretty much gobbledegook to me, what am i looking for?
thanks

ok so based on that log i have switched of the use wireless networks to find my location (not gps i hardly ever use that anyway) and now the running % is dropping fast.
i will keep you posted as to whether it keeps coming down or not.
it is going to be an enormous bummer if i cant use wireless location, thats one of a smartphones greatest powers, why would this suddenly start happening now ( started about a week before the ota update) and continues even when i factory reset.

kinkade said:
ok so based on that log i have switched of the use wireless networks to find my location (not gps i hardly ever use that anyway) and now the running % is dropping fast.
i will keep you posted as to whether it keeps coming down or not.
it is going to be an enormous bummer if i cant use wireless location, thats one of a smartphones greatest powers, why would this suddenly start happening now ( started about a week before the ota update) and continues even when i factory reset.
Click to expand...
Click to collapse
I suppose it's not the feature itself guilty but the applications using it. I had the same issue with battery running out because of Location service wake locks. It turned out one of the Locale app plugins was abusing this service. Having it uninstalled battery run became normal.

djet said:
I suppose it's not the feature itself guilty but the applications using it. I had the same issue with battery running out because of Location service wake locks. It turned out one of the Locale app plugins was abusing this service. Having it uninstalled battery run became normal.
Click to expand...
Click to collapse
Yes i know what you mean, how did you go about diagnosing that? also i have done several factory resets and it still happens

Re: Android system - partial wake lock
There are a many app settings that drain battery and the stock setup is nothing I am fond of. Location/locale was one of them for me, calendar, network time and widget/app syncs being the others. A non-stock app causing such problems was NetCounter.
Calendar was fixed by killing it and restarting it. It's a known bug for many.
If many widgets are running sync very often, then you can imagine battery draining fast.
-------------------------------------
- Sent via my HTC Desire -

th3 said:
There are a many app settings that drain battery and the stock setup is nothing I am fond of. Location/locale was one of them for me, calendar, network time and widget/app syncs being the others. A non-stock app causing such problems was NetCounter.
Calendar was fixed by killing it and restarting it. It's a known bug for many.
If many widgets are running sync very often, then you can imagine battery draining fast.
-------------------------------------
- Sent via my HTC Desire -
Click to expand...
Click to collapse
th3 you are legend, it was network time, i switched that off and all is now well in the world. cheers dude

Good find. I had the thing off anyway, but it is good to know.

[SOLVED] Wi-Fi won't turn off in sleep [post-JB update]: how to diagnose?

SOLVED: See this follow-up post; it's one of those 7 things!
Hi! After updating to LK3 (the stock 4.1.1 JB update), my Wi-Fi stays on even after I put the phone to sleep (contrary to the setting "Keep Wi-Fi on during sleep: never (increases data usage)." See attached pics.
I have disabled thus far:
1) Google Now
2) Location Services "Use wireless networks" and "Location and Google search"
3) Location reporting: now set to "Location manually selected on the map"
4) Latitude location sharing
5) Location history
6) Automatic check-ins
7) Check-in notifications
Basically, everything I could find related to location. But, alas, that battery screenshot is after I changed all of those! Wi-Fi isn't on constantly, but it stays on way longer than just when I have the screen on.
What are my options here? How should I diagnose this sucker? I ran BetterBatteryStats, but they said it looked fine with my log (some apps, through the ambiguous "Alarms" partial wakelock, were the largest cause, but only accounted for 3.6% of the time).
I'm pretty sure this is a post-update problem, as before, whenever I unlocked my phone, I got the little notification, "Connected to #SSIDName#" and the Wi-Fi icon would obviously, then, be off for the first few seconds (and when I opened my browser too quickly, I'd get a "Page cannot be displayed" error).
Thanks in advance, I'll take any ideas/thoughts/help/sympathy/antipathy you can offer,

Same problem here. Before the update, it was doubletwist air sync forcing wifi on at all times. That's disabled now, so I have not clue. Hopefully somebody figures it out. Mine isn't even intermittent, it's always on, and I have the same setting as you.

So, I left my phone alone for the night and these programs used Wi-Fi while the screen was off:
Do you have any of the same apps? I'm going to uninstall Google+, Facebook, and GroupMe today and run this again tomorrow. But, looking at pure download amount, it's something on the OS....
If you're interested in doing the same, the app is My Data Manager ( https://play.google.com/store/apps/...e&utm_medium=organic&utm_term=my+data+manager).
Basically, install the app, but do not open it. When you're ready for bed (or any extended period of not using it), open it, and then minimize it (runs in the background). Hit your sleep button immediately (we don't want to capture anything of the phone when the screen is on). Then, when you wake up/need to use it, wake it up, immediately disable Wi-Fi (again, no artifacts from when the phone was awake), take a look at My Data Apps (2nd page), Wi-Fi.
I'll let you know how my second attempt goes.

The only one I have is Facebook, but yeah it definitely looks like the os.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Well! Maybe I should have given it a little while longer, as it seems to be quite a bit better!
It still stays on longer than the screen, but now at least it shuts off once in a while, haha. It was either uninstalling Facebook, gMail, or GroupMe OR disabling one of those earlier settings...it's still not totally fixed, though. I found the Network Counter app which seems to be a little more specific, so we'll see how it goes tonight,
~Ibrahim~

Hmm this is what mine looks like from today. Wifi didn't go off until I did it manually.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Have you disabled the location stuff? Those are what really helped me. I'm off to run the overnight test, with the new app!

i am having the same issues. my wifi since the jelly bean update has been always on.... the wifi bar in battery settings is solid and has never been off.... so frustrating.

Try "Green Power" app.
I use it to disable both wifi and data 20secs after screen off.
There is a Whitelist and a minimum threshold trigger too.
It works PERFECT in ICS.
At bedtime, I get .5% hr battery drain or better.

themadproducer said:
Try "Green Power" app.
I use it to disable both wifi and data 20secs after screen off.
There is a Whitelist and a minimum threshold trigger too.
It works PERFECT in ICS.
At bedtime, I get no less than .5% hr battery drain.
Click to expand...
Click to collapse
Awesome, thanks for the info! Exactly, I don't mind Google Now using the Wi-Fi, but then that opens the door for everything to use the Wi-Fi which will kill the battery when I get back to work.
Network Manager didn't work for some reason, so I tried Data Detective, but the stupid app consumed 90% of the Wi-Fi last night!
The only thing I've heard against battery savers is that they force apps to not use the data, and then they keep asking (creating overhead). I wouldn't have believed it out right except it came from the developer of BetterBatteryStats. But your battery loss isn't bad at all (overnight I average 0.4%/hour with the screen off).

ikjadoon said:
(overnight I average 0.4%/hour with the screen off).
Click to expand...
Click to collapse
I slightly edited my statement. I get .5% hr or better.
Curious...if you average .4%...
- what rom?
- and what is your lowest cpu freq?
- and is that with data and wifi off?

themadproducer said:
I slightly edited my statement. I get .5% hr or better.
Curious...if you average .4%...
- what rom?
- and what is your lowest cpu freq?
- and is that with data and wifi off?
Click to expand...
Click to collapse
Haha, right, I thought that's what you meant!
I'm on stock AT&T. Everything is stock; CPU Spy tells me 384Mhz. WiFi on, data off.

Why don't you guys disable it in settings? Open Wi-Fi in settings. Click menu button. Click advanced. Turn off Wi-Fi during sleep. Ta-da!
Sent from my SAMSUNG-SGH-I747 using xda premium

Ends said:
Why don't you guys disable it in settings? Open Wi-Fi in settings. Click menu button. Click advanced. Turn off Wi-Fi during sleep. Ta-da!
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Yeah, that's an alternative...but if I have a setting that's supposed to turn it off when it goes to sleep, I'd like it to do that.

stbtigerr said:
Yeah, that's an alternative...but if I have a setting that's supposed to turn it off when it goes to sleep, I'd like it to do that.
Click to expand...
Click to collapse
That's right, well said....hence the opening post!

I have the same issue, wi-fi is always on unless I turn it off.

I'm happy. It's one of those location settings in the first post that caused the locks! Let me know if it works for you guys,

Phone awake always

Hi,
My phone is 'awake' always and the WiFi (in battery graph) shows as active even thoug WiFi is switched off.
http://imgur.com/ovnpKno
Any suggestions please

mtechie said:
Hi,
My phone is 'awake' always and the WiFi (in battery graph) shows as active even thoug WiFi is switched off.
http://imgur.com/ovnpKno
Any suggestions please
Click to expand...
Click to collapse
Assuming you are on 5.0.1 Lollipop, did you factory reset after the update? Many people have experienced problems after the update but have seen factory resets correct problems.
While on the wifi settings page (the screen where you find the list of wifi networks available), touch the three dots in the upper right corner and select Advanced.
Uncheck (turn off) the option to "Always allow scanning"
You can also turn off the first option of Network notification to stop it from trying to find open networks in range.
hope this helps.

jack man said:
Assuming you are on 5.0.1 Lollipop, did you factory reset after the update? Many people have experienced problems after the update but have seen factory resets correct problems.
While on the wifi settings page (the screen where you find the list of wifi networks available), touch the three dots in the upper right corner and select Advanced.
Uncheck (turn off) the option to "Always allow scanning"
You can also turn off the first option of Network notification to stop it from trying to find open networks in range.
hope this helps.
Click to expand...
Click to collapse
Thanks for the response,
I am on 5.0.1, I did factory reset twice, Cleaned cache multiple times
"Always allow scanning" is already turned off
Network notification is also turned off (unchecked)
Funny thing is , I put the phone in Airplane mode (wifi off too) for a while and battery graph still shows WiFi on and phone awake

mtechie said:
Thanks for the response,
I am on 5.0.1, I did factory reset twice, Cleaned cache multiple times
"Always allow scanning" is already turned off
Network notification is also turned off (unchecked)
Funny thing is , I put the phone in Airplane mode (wifi off too) for a while and battery graph still shows WiFi on and phone awake
Click to expand...
Click to collapse
The Wifi thing is a lollipop bug.
It'll always show as on even when it's off.

spexwood said:
The Wifi thing is a lollipop bug.
It'll always show as on even when it's off.
Click to expand...
Click to collapse
That bug must not hit every lollipop phone because my wifi doesn't show as on all the time. When it's off, it's off.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app

jack man said:
That bug must not hit every lollipop phone because my wifi doesn't show as on all the time. When it's off, it's off.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
Weird... mine does.
Are you running any special apps (like battery savers)? What Wifi settings are you using? Is Power Saving Mode on or off?
I'm curious now. But yeah, several Note 4 users on the non-ATT Note 4 thread are reporting this issue as well and so were many Nexus users.

spexwood said:
Weird... mine does.
Are you running any special apps (like battery savers)? What Wifi settings are you using? Is Power Saving Mode on or off?
I'm curious now. But yeah, several Note 4 users on the non-ATT Note 4 thread are reporting this issue as well and so were many Nexus users.
Click to expand...
Click to collapse
No battery savers or apps designed to conserve battery; power saving modes off. All I did to wifi settings was turn off scanning and notification. I have a long list of apps that I disabled since I knew for sure I wasn't going to use them. I screenshot them below if you're interested.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app

jack man said:
No battery savers or apps designed to conserve battery; power saving modes off. All I did to wifi settings was turn off scanning and notification. I have a long list of apps that I disabled since I knew for sure I wasn't going to use them. I screenshot them below if you're interested.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
Ok I was wrong. My phone doesn't show wifi always on. I kept wifi off all day and it showed correctly. BUT I think it did show as always awake on the previous Lollipop update. (I'm on COC4 now).
And btw, I have all the same apps turned off as you except Samsung Push Service because it seems to not sync S Note with my Samsung account (I have a Note tablet too) and Amazon because I use it.

Update
I did some further digging , based on the amount of battery used.
1. Cerberus App was using a lot of battery, so uninstalled and re-installed it... the Constant AWAKE problem is gone
waiting a few days to make sure that problem was really gone
2. Uninstalled "LLAMA" app and now WiFi does NOT show as always on

Having the exact same issue on my galaxy s6. Just turned on clash after picking up the phone and the resolution looks like as compared to my joke Moto X (2013). It's worst when zoomed way out and fine when zoomed way in. Maggie everywhere. What the **** supercell.

My places greyed out

Anyone else having this problem? My places in location settings is greyed out so I can't turn it on.

Did you run Google maps and update your home location first?

Yes. Google Maps knows my home location. Weather seems to know where I am. Anything else I have to update?

Idk of anything else.

On my G4, GPS has to be on or my places is greyed out.
Sent from my LGUS991 using Tapatalk

Doesn't seem to matter on my phone. Stays off even when GPS is on.

Factory reset.

Turn on data

Sfkn2 said:
Factory reset.
Click to expand...
Click to collapse
Thanks. Yeah, probably so, but I've got the phone completely set up the way I like it and I'm reluctant to go through it all again just for "My Places". If that's what it will take I'll probably just install Llama which will handle this and a whole lot more.

329958516 said:
Turn on data
Click to expand...
Click to collapse
That's an idea. I'll give it a try. I've been keeping data turned off except when I need it because on the HTC One M7 it seemed to really affect battery life even though I wasn't using it and I value the long battery life on the G4 more than I think I would value "My Places". Still maybe it won't have the battery effect on the G4 that it had on the M7. On the M7 at night I would turn off WiFi too and put it into extreme battery saving mode and I'd still lose 12 to 15% overnight. On the G4 I don't bother to turn off WiFi at night and there is no extreme battery saving mode but I only lost 1 or 2 % overnight. What a great phone!

329958516 said:
Turn on data
Click to expand...
Click to collapse
You were right. Turning on data did the trick. Requires data and GPS on. Not sure I'll keep it depending on battery usage, but thanks.

Tried it overnight with data and GPS turned on and it lost 8% vs losing 1 or 2 % with them off. So it's goodbye to My Places. Llama does an even better job and doesn't cost the battery power. I can quickly turn on data and GPS when I need them. But thanks for the help.

LG G4 H815 - Location icon ALWAYS on in notification area

Hey people,
I recently sold my iPhone 6S+ and paid under half the price of it for a G4, and loving it. However, There is a slight issue that is bugging the hell out of me.
The GPS icon in the notification area is nearly always on, meaning the gps is working. Sometimes its white, other times its grey (as seen is attached screenshots) . How can i find out what is using location?
Thanks

mahdibassam said:
Hey people,
I recently sold my iPhone 6S+ and paid under half the price of it for a G4, and loving it. However, There is a slight issue that is bugging the hell out of me.
The GPS icon in the notification area is nearly always on, meaning the gps is working. Sometimes its white, other times its grey (as seen is attached screenshots) . How can i find out what is using location?
Thanks
Click to expand...
Click to collapse
Well,I see from your screenshots that you have two weather widgets active,so...
I keep my location on Off,to save the battery.
Sent from my LG G4

welder73 said:
Well,I see from your screenshots that you have two weather widgets active,so...
I keep my location on Off,to save the battery.
Sent from my LG G4
Click to expand...
Click to collapse
The widgets dont have permission for location. Its some sort of background service thats doing this .

mahdibassam said:
The widgets dont have permission for location. Its some sort of background service thats doing this .
Click to expand...
Click to collapse
I have the same problem on 2 of my 3 g4's, only way I have found to fix it is to root and use xpossed app ops to turn location off for android system.

Strange, my G4 is MM version 20d-EUR-XX stock and while the position setting is always on in high precision mode the location icon is turned on only when using navigation apps or shortly for random apps requiring a position.

mahdibassam said:
Hey people,
I recently sold my iPhone 6S+ and paid under half the price of it for a G4, and loving it. However, There is a slight issue that is bugging the hell out of me.
The GPS icon in the notification area is nearly always on, meaning the gps is working. Sometimes its white, other times its grey (as seen is attached screenshots) . How can i find out what is using location?
Thanks
Click to expand...
Click to collapse
I have the same problem, usually i've tried to solve it by turning off and on the GPS from quick settings, but it's not a real solution.
Now I denied GPS permission to all apps (except for apps that I'm sure need it like gmaps) and seems to solve the problem.
BTW, do you have some tool to check if the device goes to deep sleep (like cpu spy, for example)? Because i've noticed that my device quite never goes to deep sleep, so there is still something strange.

Il_Tene said:
I have the same problem, usually i've tried to solve it by turning off and on the GPS from quick settings, but it's not a real solution.
Now I denied GPS permission to all apps (except for apps that I'm sure need it like gmaps) and seems to solve the problem.
BTW, do you have some tool to check if the device goes to deep sleep (like cpu spy, for example)? Because i've noticed that my device quite never goes to deep sleep, so there is still something strange.
Click to expand...
Click to collapse
There is wakelock detector, which shows how much the device is awake and how much sleep. But it needs root to show what apps are keeping the device awake. These are the issues of staying stock with no root. I will be flashing Genysis rom whenever i have the time to do it. These issues are present in stock roms in any phone.

In Settings -> Location it shows which apps accessed the location recently and how much battery they used. You can also disable location for smart settings and Google location history.