"wlan_wake" kernel wakelock high drain problem - Galaxy S 4 Q&A, Help & Troubleshooting

Hello, I'm having a problem, my Wakelock Detector detects a lot of wake time (72%) by a kernel wakelock named "wlan_wake" and I don't really know how to solve it! I have a Samsung Galaxy S4 i9505 with the 4.3 android version, official release, and this started to happend less than a week ago. I cleaned cache and dalvik, I tryed to let the wifi always off, and nothing worked... Solutions?
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Bruninho98 said:
Hello, I'm having a problem, my Wakelock Detector detects a lot of wake time (72%) by a kernel wakelock named "wlan_wake" and I don't really know how to solve it! I have a Samsung Galaxy S4 i9505 with the 4.3 android version, official release, and this started to happend less than a week ago. I cleaned cache and dalvik, I tryed to let the wifi always off, and nothing worked... Solutions?
Click to expand...
Click to collapse
Did you recently install viber ?
Viber is known cause of keeping wifi on while the phone is in sleep mode. you can easily Greenify it.

Go to settings wifi advanced settings and disable wifi search whlie wifi is off (sory dont know the right name because I use miui
This disables the search for wifi networks while the wifi is off its a know issue in android 4.3
Sent from my GT-I9500 using Tapatalk

Thanks!
Enviado do meu GT-I9505 através de Tapatalk

It didn't help me!
but after restarting the phone the problem is gone. AND ITS BACK AFTER 2 DAYS!!!
EVERY TIME!!
Ohh yes.. And I know that if i turn of the WIFI the problem is gone..
BUT!!! I want the Wifi to be ALWAYS on..
Please help!!!

I would suggest doing a full wipe on your ROM or trying a different kernal. By the way, using CAPS and a lot of !!!!!!! will just make people not want to help you.

Same here. See http://forum.xda-developers.com/showthread.php?t=2533853
Sent from my GT-N8013 using Tapatalk 4

this issue was introduced with 4.1.2
and it seems to be always occur after a application has updated through googleplay.

Related

Wifi problem without reasons

Hello,
So since today my wifi stopped without reasons, i was looking some videos on youtube and the wifi "crashed" and after that i couldnt find any wifi spots (localbox or hotspot).
I tried some reboots but there's no effects.
So what is the problem in your opinion and what can i do ? thanks
(PS : I'm running on GingerDX and i installed SPB SHELL 3D and FlashPlayer 10.3 by Paul1989 today but it was working normally)
Nobody knows what is wrong?
You using Stock Kernel or LinuxDX Kernel?
Stock kernel in my opinion (sorry i'm a novice )
Did u try to delte all netwroks from mobile phone?
If you're speaking about all wifi networks, so yes i've already tried this
Otherwise it's like that when i try to connect to wifi firstly it's like that durring 2-3 mins :
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then it's like that :
And as you can see, the mobile doesnt search any wifi, it just shows me wifi networks added.
Nyl94 said:
Otherwise it's like that when i try to connect to wifi firstly it's like that durring 2-3 mins :
then it's like that :
And as you can see, the mobile doesnt search any wifi, it just shows me wifi networks added.
Click to expand...
Click to collapse
ok there is a solution for this as i had the same problem a few months ago delete all the networks u added reboot and it will search for them trust me
Thanks mate for your help but it's still the same
the only thing i can suggest then bud is a clean install again
I fixed my phone with PC Companion and its work!!!
But now i'm scared about install GingerDX again
ok use toolbox which can be found in the development forum to root and install dual mode recovery pop gdx 17 on sd card boot to xrecovery and install i gurantee there will be no issues the gingerdx can be found here http://forum.xda-developers.com/showthread.php?t=1188486
I had the same problem a few days ago.
I forgot all networks and wifi started working emidiately
Sent from my X8 using XDA App

Help !! Big problem :( Battery drops from 30% to 3%

Hey everybody,
need some help please.. i just bought a Galaxy tab 10.1 3G+wifi from Expansys
and it's seem not to work as usual from the sec i delivered
sometimes the tab won't boot up till i plug the charger and sometimes the battery drops in sec from 40 or 30% to 3% ... i send their an email but the told me to deal with Samsung service center in UK !!! ..
the big problem that i am in Egypt right now and can not deal with SSC in UK !!!
Any help please ... i can ship it anywhere to get it fixed
P.S:: these isn't rom or kernel problem as i try so many roms and kernels
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http://forum.xda-developers.com/showthread.php?t=1215182
try battery calibration
This is common problem on the galaxy tabs. Dont worry just yet. I had the same problem on the stock rom but as soon as I flashed task650's rom the problem dissapeared. Try just using the tab a couple of charge cycles(charge all the way, then let die completly). There also some apps on the market that will reset battery stats but I think you might have to root to do that. If you havent already, I would try to root/install custom recovery, because this gives you many more ways to troubleshoot your problem.
Vlad_z said:
http://forum.xda-developers.com/showthread.php?t=1215182
try battery calibration
Click to expand...
Click to collapse
will try this solution, hope it work
thanks
joemill said:
This is common problem on the galaxy tabs. Dont worry just yet. I had the same problem on the stock rom but as soon as I flashed task650's rom the problem dissapeared. Try just using the tab a couple of charge cycles(charge all the way, then let die completly). There also some apps on the market that will reset battery stats but I think you might have to root to do that. If you havent already, I would try to root/install custom recovery, because this gives you many more ways to troubleshoot your problem.
Click to expand...
Click to collapse
thanks very much.. will try this soon
Your welcome, goodluck!
Hope it works for you. Never experienced this and glad for that. Wonder how long the life of our batteries will be?
Sent from my GT-P7510 using xda premium

Android OS stay awake problem

Hi people. I have this phone second day, and yesterday it has been al ok. Phone is new buyed by me, and i turned off locations, sync, google apps and some lg apps. I have 20b firmware.
Problem is in Android OS why is so high this number of stay awake ?
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I have the same issue... Maybe it's just a false report, like with Bluetooth before ( it was saying that bluetooth take like 7% of battery and was keeping the device awake while in fact it was not)
I'm on stock kitkat 4.4.2 20D EUR open with cloudyfa kernel (I have a custom recovery and KnockCode doesn't work with KK stock kernel)
DizzyMizzy said:
I have the same issue... Maybe it's just a false report, like with Bluetooth before ( it was saying that bluetooth take like 7% of battery and was keeping the device awake while in fact it was not)
I'm on stock kitkat 4.4.2 20D EUR open with cloudyfa kernel (I have a custom recovery and KnockCode doesn't work with KK stock kernel)
Click to expand...
Click to collapse
I dont know. Maybe it is just false report, will see after few day of using.
Anything ever come of this?
Sent from my LG-D801 using XDA Premium 4 mobile app
You turned off locations, but what about Google Now?
Robi959 said:
Hi people. I have this phone second day, and yesterday it has been al ok. Phone is new buyed by me, and i turned off locations, sync, google apps and some lg apps. I have 20b firmware.
Problem is in Android OS why is so high this number of stay awake ?
Click to expand...
Click to collapse
Download wakelock detector from the play store. You will have to root your phone for the app to work properly.
Let it run for a day then post the results of the app on here and I can tell you what's causing this issue.

Very bad WiFi connection since a week

Hello, since a week my connection is very bad.
I think it's after formatting to f2fs.
Now I'm using ext4 and a TouchWiz Rom but the connection is still bad. I think after changing to TouchWiz it was good for one day.
I'm Facebook and instagram the pictures loading after an hour and it takes very long to download an app from playstore.
It does take very long to show the pictures in play store. But after wating till the download starts, it downloads at normal speed. Don't know why [emoji15]
Wrong section. Post in QnA please. Btw you seriously waited an hour for FB picture to show?!?
Didn't know that I was in the wrong section. I want sure that my phone started the thread because of the internet problems.
I didint wait so long but it feels like that.
Here an example
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It does take very long. Before it was not so slow. Only my device is so slow.
My tablet get an good connection.
Any solution ?
I flashed TouchWiz because I thought its an problem with aosp
Sorry i forgot a few information.
Note 3 9005 LTE
Android 5.0
Newest Bootloader
Router settings ok
Only with my note 3
Maybe since I formatted to f2fs
Now i got ext4 but its still the same
Try FXR wifi fix and rescue from playstore. See if it works.
Sent from my GT-N7105
use *#0011# and wifi closed - open.
Tried both but the issue still exist
So the bootloader is from lollipop?
Sent from my Micromax AQ4501 using XDA Free mobile app
I think so.
After lollipop touchwiz released I flashed bootloader and the rest.
But the issue is since a week.
I got flashed lollipop touchwiz since its released
Edit:
I think it´s fixed now
I think it was my router ..........
Happy for you anyway
Sent from my Micromax AQ4501 using XDA Free mobile app

Battery usage shows that WiFi is always turned on in Lollipop (N9005)

Hi
I noticed that the battery usage shows that my WiFi is always on even though I'm pretty sure it's never turned on.
Is this a general bug in all Lollipop versions? And if so could it be the reason for the battery drain in the Android 5.0?
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I'm using the Polish Lollipop firmware flashed through Odin.
- NOT ROOTED.
Device info:
Sent from my SM-N9005 using XDA Free mobile app
In my Lollipop polish official version is the same bug.
LOL that isn't a problem related with Lollipop, it was there from Jelly Bean and it's not a problem, I think it's some kind of feature! Just turn off always scanning option under WiFi option (menu-advanced).
devilsdouble said:
LOL that isn't a problem related with Lollipop, it was there from Jelly Bean and it's not a problem, I think it's some kind of feature! Just turn off always scanning option under WiFi option (menu-advanced).
Click to expand...
Click to collapse
I tried turning the options you mentioned off but nothing changed. I was told that the N900 models also shows the same problem with Lollipop, so I guess this is a general bug :/ . Hopefully Samsung will fix it with an update ASAP.
Sent from my SM-N9005 using XDA Free mobile app
Ghido95 said:
I tried turning the options you mentioned off but nothing changed. I was told that the N900 models also shows the same problem with Lollipop, so I guess this is a general bug :/ . Hopefully Samsung will fix it with an update ASAP.
Sent from my SM-N9005 using XDA Free mobile app
Click to expand...
Click to collapse
Actually my Nexus 5 also having that problem. it is a problem/bug on Lollipop...
i am using n9000q
after uptading to stock 5.0 i started facing this problem
never found a solution
wifi is off, always scanninf feature is also off
yesterday i rooted my note 3 and flashed cm12
and there was no bug until i install my apps
one of our apps causing this problem
i wonder if anyone knows an application to seek which program is using wifi in background?

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