[Q] kernel wakelock - Galaxy S III Q&A, Help & Troubleshooting

I have some Kernel wakelocks that I can't find anything about they are named mhl_wake_lock and hostd. They both are keeping the device awake around 75% so currently it shows 4 hours since unplugged and 3 hours wake lock for both processes. It's noticeably draining the battery.. any ideas?

desireboss said:
I have some Kernel wakelocks that I can't find anything about they are named mhl_wake_lock and hostd. They both are keeping the device awake around 75% so currently it shows 4 hours since unplugged and 3 hours wake lock for both processes. It's noticeably draining the battery.. any ideas?
Click to expand...
Click to collapse
What app are you using to determine it? Use betterbatterystats. It will give better info about it.

BelJanss said:
What app are you using to determine it? Use betterbatterystats. It will give better info about it.
Click to expand...
Click to collapse
That's what I'm using. It does not give me any more information about it and a Google search returns nothing.

desireboss said:
That's what I'm using. It does not give me any more information about it and a Google search returns nothing.
Click to expand...
Click to collapse
BBS thread ???
jje

If you've plugged in an usb otg cable or mhl cable, just reboot your phone after removing them to avoid wakelocks they cause.
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sxi200 said:
If you've plugged in an usb otg cable or mhl cable, just reboot your phone after removing them to avoid wakelocks they cause.
Sent from my GT-P7500 using xda premium
Click to expand...
Click to collapse
ive never used an mhl cable but il reboot and see if it goes
slightly anoying to have to reboot shouldnt android handle such things?

mhl_wake_lock
Simone said:
Thread update. Please continue to share your suggestions :laugh:
Click to expand...
Click to collapse
sxi200 said:
If you've plugged in an usb otg cable or mhl cable, just reboot your phone after removing them to avoid wakelocks they cause.
Click to expand...
Click to collapse
Cheers
Tom
My Note 2 to you

Wasn't there an issue where if you unmount otg via the notification you got this wakelock but from settings, no wakelock?
Something like that. Search here for otg wakelock
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Related

Battery is not charging correctly

For a while my phone is taking a lot much time to charge than it usually take earlier.
So today i installed this app:
https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
And after i connect my mobile to charger this app usually shows that my phone is having max current:400/500 which shud be 999 instead. (Read app description)
After i disconnect charger and connect it back 3-4 times i get a rating of 700 or sometimes even 900(max) but after letting the mobile charge for a while this automatically decreases to 300-400.
And also from the time i bought the phone(4 months back) charger usually gets somewhat hot(not warm) but i ignored that issue.
So what do u think the fault is in-charger/phone?
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Do not use such an application, let the phone discharge to zero to turn off and recharge to full.
mostly help.Please use the phone menu
charging problems are mainly related to cable!
sent from my GT-I9300 running Mac OS
The app has 10000+ downloads and my friend suggested so i thought of giving it a try
After the battery fully discharges and phone turn off shud i turn on the phone after connecting to charger or shud i let be off till it charges completely?
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sriram231092 said:
charging problems are mainly related to cable!
sent from my GT-I9300 running Mac OS
Click to expand...
Click to collapse
Yea my friend had the same problem and he installed this app as well and was getting 400 too
But then he changed his cable with blackberry cable and now he's getting 900 rating
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No need to use this.
just delete the cache occasionally a classic way to charge your phone battery runs down.
It does not have to be zero!!
yeah me too using BB cable. better than many original samsung cables.
sent from my GT-I9300 running Mac OS
https://play.google.com/store/apps/...xLDEsImNvbS5uZW1hLmJhdHRlcnljYWxpYnJhdGlvbiJd
misacek said:
No need to use this.
just delete the cache occasionally a classic way to charge your phone battery runs down.
It does not have to be zero!!
Click to expand...
Click to collapse
Sorry for being noobish but how to delete cache?
By going to application manager> running>show cached processes and then deleting of every program one by one?
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https://play.google.com/store/apps/...251bGwsMSwxLDEsIm1vYmkuaW5mb2xpZmUuY2FjaGUiXQ..
It does not help torch, but a system that does not take much energy
misacek said:
It does not help torch, but a system that does not take much energy
Click to expand...
Click to collapse
Didnt got u ?
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If you do calibrate batteries and erase cache, the system will be as before.
Have tried both i.e. cleared cache and charged completely frm 2%
But it almost took 6-7 hours
So is the problem in cable?
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Cable
Charger
Usb Port
Battery are all possible causes of very slow charge .
jje
yes it's the cable. many samsung customers including me faced the same problem. just change the cable.
sent from my GT-I9300 running CM10.1 RC4 by Temasek
But what about the charger getting hot too.. shud i check it out with service center as i have 1-2 months of warranty left on accessories?
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yeah that is a good idea.
sent from my GT-I9300 running CM10.1 RC4 by Temasek

Vbus wakelock-How to stop it

I had this for ages and it was draining my battery really bad and I discovered it started when I had my tablet plugged into an extended usb cable into my charger but it ran out of battery and wasn't the same since and just charging to 100% didn't get rid of it or rebooting or brushing the usb port (some suggestions I found on Google and Xda)
I searched google and xda for answers but didn't get any so what I did was charge my battery to 100% and then callibrate my battery and the wakelock disappeared
This happened with my note 10.1 but thought I'd post this here to help anyone who has this wakelock for the for the galaxy s3
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Try to unplug the charger when phone is unlocked. Then reboot the phone. Now check in BetterBatteryStats for this wakelock.
I had this wakelock issue on my previous S2.
Sent Via I9300, Stock XXUFME7, 4.2.2.
It happens when you use a faulty usb cable or extension cable and the phone or tablet doesn't charge but when you unplug the cable it still thinks it's charging but it's not, the vbus wakelock is a usb charging wakelock, rebooting does nothing I had the wakelock for two weeks until I got rid of it and when I searched on Google and xda nobody knew how to get rid of it
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How do you callibrate battery?
winkot said:
How do you callibrate battery?
Click to expand...
Click to collapse
You charge the phone and use it for a week .
JJEgan said:
You charge the phone and use it for a week .
Click to expand...
Click to collapse
This is the normal use of the device. What then is calibrated?
winkot said:
This is the normal use of the device. What then is calibrated?
Click to expand...
Click to collapse
What you asked how do you calibrate i then gave you the correct answer .
The battery is calibrated by normal use please read the stickied FAQs and guides .
Do I understand correctly, the normal using of the battery performs its calibration? No action need not be applied?
winkot said:
Do I understand correctly, the normal using of the battery performs its calibration? No action need not be applied?
Click to expand...
Click to collapse
Whenever u charge the phone to 100%, the battery is automatically calibrated.
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JellyYogurt said:
Whenever u charge the phone to 100%, the battery is automatically calibrated.
Click to expand...
Click to collapse
But Samsungnooby wrote that he specially made calibration and vbus wake lock disappeared. Howl it can be done if it is done automatically every time you charge up to 100%?
winkot said:
But Samsungnooby wrote that he specially made calibration and vbus wake lock disappeared. Howl it can be done if it is done automatically every time you charge up to 100%?
Click to expand...
Click to collapse
Download Battery Calibration from play store and follow it. U nid to have root btw.
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JellyYogurt said:
Download Battery Calibration from play store and follow it. U nid to have root btw.
Click to expand...
Click to collapse
Why, if the battery is automatically calibrated every time you charge 100%??
winkot said:
Why, if the battery is automatically calibrated every time you charge 100%??
Click to expand...
Click to collapse
No idea. Guess android isn't tat automatic sometimes xD
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Same problem
Same problem right here
Buckycasuals said:
Same problem right here
Click to expand...
Click to collapse
How long?

[Q] Problem with charging in S III

Hello everybody
i have a very strange problem with my Galaxy S III
i plug my charger or any charger to my phone it takes a long time to start charging ( about 20 seconds )
earlier it was starting on time, once i plug the charger it starts.
Thanks in advance for your help.
John
johnadel88 said:
Hello everybody
i have a very strange problem with my Galaxy S III
i plug my charger or any charger to my phone it takes a long time to start charging ( about 20 seconds )
earlier it was starting on time, once i plug the charger it starts.
Thanks in advance for your help.
John
Click to expand...
Click to collapse
Did you try to switch cable?
Also, see if there is any change when you plug it into a pc, or after restarting your device
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amirTor said:
Did you try to switch cable?
Also, see if there is any change when you plug it into a pc, or after restarting your device
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
Dear amirTor
thanks for your reply
i already tried all of this
i have a lot of chargers here also i have a car charger
and the problem still
i do not know it may be a problem with the charging circuit or the battery.
anyway thanks again for your reply.
johnadel88 said:
Dear amirTor
thanks for your reply
i already tried all of this
i have a lot of chargers here also i have a car charger
and the problem still
i do not know it may be a problem with the charging circuit or the battery.
anyway thanks again for your reply.
Click to expand...
Click to collapse
Thats ok, no need to go formal on me
Check the current reaching your device using this app: https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
If the charging port works as it should, you suppose to see value of 900-1100 in the 'avg' row (assuming you're using original 1A charger and cable), otherwise it should be much lower.
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I was having the same problem with charging my phone for ages and then it occurred to me that it was a problem with the cables. Try the following fix from my own thread in the general section of the forum.
Link below and good luck with it
http://forum.xda-developers.com/showthread.php?t=2599753
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Try a different cable. I charge my S3 with a S4 charger and it works great! Good luck.

S2 i9100 slow/not charging?

Hi,
I've got a S2 that is slow at charging (like 1% or 2% every hour) but I've tried multiple batteries, multiple chargers, reset the battery stats, changed rom but nothing is fixing it.
Any ideas as to what it could be? (I've ordered a new charging port as it was only £5 so that should be here Monday) but what other things could it be and is there a way to charge the battery externally? (not in the phone?)
Hyflex said:
Hi,
I've got a S2 that is slow at charging (like 1% or 2% every hour) but I've tried multiple batteries, multiple chargers, reset the battery stats, changed rom but nothing is fixing it.
Any ideas as to what it could be? (I've ordered a new charging port as it was only £5 so that should be here Monday) but what other things could it be and is there a way to charge the battery externally? (not in the phone?)
Click to expand...
Click to collapse
Yes it's because of the port in your phone.
Change it
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Vivek_Neel said:
Yes it's because of the port in your phone.
Change it
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Is it a common issue or something?
Hyflex said:
Is it a common issue or something?
Click to expand...
Click to collapse
Not a common issue.
Its an issue with your phone
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Vivek_Neel said:
Not a common issue.
Its an issue with your phone
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
haha yeah but I mean, you seem rather confident that it's the charging port... I am buying the port just incase it is that but also as a backup as we have 3 s2's in the house
Hyflex said:
haha yeah but I mean, you seem rather confident that it's the charging port... I am buying the port just incase it is that but also as a backup as we have 3 s2's in the house
Click to expand...
Click to collapse
It is the charging port, same problem happened to my phone last year. I've replaced the changing port and everything is back to normal.
sychobob said:
It is the charging port, same problem happened to my phone last year. I've replaced the changing port and everything is back to normal.
Click to expand...
Click to collapse
Yup worked perfectly I also stuck a new battery in and it lasted so much longer

Insane battery problems

I don't know what's going on anymore. I've used countless different chargers and usb cables and they don't work (literally, they work with other phones, just not mine). I have cleaned the inside of the phone's charging port, nothing. I have got the port repaired at a shop, it did work, but not any more. My phone does not charge at an amperage higher than 100mA on any charger, it starts at 900mA then decreases in a matter of seconds. According to another battery monitor my phone is discharging at 15% an hour. This is crazy for me as I could get my phone to last 24+ hours on a single charge a few days ago (I use greenify). Also, my phone is always hot, according to GSam battery monitor and various other monitors, well over 50 degrees Celsius. I'm running the latest version of Resurrection Remix for the SGS3 (android 4.4.2). If any other information is required I'd me more than happy to provide it.
Thanks in advance :thumbup:
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battery faulty?
ExperimentalHDX said:
I don't know what's going on anymore. I've used countless different chargers and usb cables and they don't work (literally, they work with other phones, just not mine). I have cleaned the inside of the phone's charging port, nothing. I have got the port repaired at a shop, it did work, but not any more. My phone does not charge at an amperage higher than 100mA on any charger, it starts at 900mA then decreases in a matter of seconds. According to another battery monitor my phone is discharging at 15% an hour. This is crazy for me as I could get my phone to last 24+ hours on a single charge a few days ago (I use greenify). Also, my phone is always hot, according to GSam battery monitor and various other monitors, well over 50 degrees Celsius. I'm running the latest version of Resurrection Remix for the SGS3 (android 4.4.2). If any other information is required I'd me more than happy to provide it.
Thanks in advance :thumbup:
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Click to expand...
Click to collapse
Hey, Tried replacing the battery?
AndroidNerdz said:
Hey, Tried replacing the battery?
Click to expand...
Click to collapse
I haven't tried that, I don't know where to buy one from either.
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I had similar problem and I replaced the battery and now my phone last 24h in really heavy use and 48h in regular use.
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Where do you guys recommend I buy one from , Amazon?
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Only if sold by amazon themselves, any from sellers are likely to be fake.
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boomboomer said:
Only if sold by amazon themselves, any from sellers are likely to be fake.
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Click to expand...
Click to collapse
Ok, thank you. As for the phone charging only when the charger is in a certain position/ not charging at all, I suppose I'll have to live with that?
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ExperimentalHDX said:
Ok, thank you. As for the phone charging only when the charger is in a certain position/ not charging at all, I suppose I'll have to live with that?
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Click to expand...
Click to collapse
If you mean moving the usb plug around causes the charging to stop then that is the usb socket damaged, if the same with several chargers/leads.
Replace the battery first, they last a year at best.
boomboomer said:
If you mean moving the usb plug around causes the charging to stop then that is the usb socket damaged, if the same with several chargers/leads.
Replace the battery first, they last a year at best.
Click to expand...
Click to collapse
Yup, I definitely know the socket is damaged, paid £20, got it fixed, worked for a while. I'll pay the guy a visit in the next few days. As for the battery, I'll replace it because 50 degrees Celsius in my hands doesn't feel pleasant. I've been looking around on Amazon, but I can't find any sold by Amazon themselves as instructed.
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ExperimentalHDX said:
Yup, I definitely know the socket is damaged, paid £20, got it fixed, worked for a while. I'll pay the guy a visit in the next few days. As for the battery, I'll replace it because 50 degrees Celsius in my hands doesn't feel pleasant. I've been looking around on Amazon, but I can't find any sold by Amazon themselves as instructed.
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Click to expand...
Click to collapse
You can also visit a local mobile store that sells genuine goods and buy a battery.
If the port got damaged too soon, then maybe the guy didn't repair it properly.
RazorMC said:
You can also visit a local mobile store that sells genuine goods and buy a battery.
If the port got damaged too soon, then maybe the guy didn't repair it properly.
Click to expand...
Click to collapse
Ah ok, I have a few stores in mind, I'll do that then.
When I bring my phone back to him I hope he does repair it properly, issues I've been having have caused so much disruption.
On a side note, I put my phone to charge and it started off at 1000mA, within a few minutes it went down to 800mA, a few seconds later (basically as I've been writing this message it's gone down to 300mA... Is this normal? I only started using a current monitoring app since my problems started, so the currents I was getting before prior to the issues are unknown.
EDIT: Nope. Not normal. Charger connected: 100mA. Phone is discharging at 1% every few minutes & feels like it's about to spontaneously combust.
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ExperimentalHDX said:
Ah ok, I have a few stores in mind, I'll do that then.
When I bring my phone back to him I hope he does repair it properly, issues I've been having have caused so much disruption.
On a side note, I put my phone to charge and it started off at 1000mA, within a few minutes it went down to 800mA, a few seconds later (basically as I've been writing this message it's gone down to 300mA... Is this normal? I only started using a current monitoring app since my problems started, so the currents I was getting before prior to the issues are unknown.
EDIT: Nope. Not normal. Charger connected: 100mA. Phone is discharging at 1% every few minutes & feels like it's about to spontaneously combust.
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Click to expand...
Click to collapse
Battery's definitely gone mate.
If your phone supports NFC, you can use that to check if the battery's genuine or not. Original replacements have embedded NFC.
only drop in mAh was when i buyed 2 m cable from ebay (dont do that) for charging ..and it didn't work ...but now i bought hama 1.8m cable and it works flawlessly....i use galaxy current to see how many mAh phone gets but ...you sould definetly buy a new battery ...it could damage your phone
RazorMC said:
Battery's definitely gone mate.
If your phone supports NFC, you can use that to check if the battery's genuine or not. Original replacements have embedded NFC.
Click to expand...
Click to collapse
Ah, that's handy. I'll look around for some genuine batteries and then use the NFC to double check.
sseennoonn said:
only drop in mAh was when i buyed 2 m cable from ebay (dont do that) for charging ..and it didn't work ...but now i bought hama 1.8m cable and it works flawlessly....i use galaxy current to see how many mAh phone gets but ...you sould definetly buy a new battery ...it could damage your phone
Click to expand...
Click to collapse
Yeah I will do. I just need to find one.
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Stweaks tweak might help
Hey OP, if you're on a custom ROM, i used to have same issues, the mA changes a lot, i had this STweaks App, it supports my kernel, i went to that MISC tab and checked box : Ignore unstable power sources; since then , i'm always on 1000 mA on wall and 899 mA on USB. Give it a try GL
Amir4Life said:
Hey OP, if you're on a custom ROM, i used to have same issues, the mA changes a lot, i had this STweaks App, it supports my kernel, i went to that MISC tab and checked box : Ignore unstable power sources; since then , i'm always on 1000 mA on wall and 899 mA on USB. Give it a try GL
Click to expand...
Click to collapse
Yeah I'm using Resurrection Remix, I'm going to try that right now. I hope it works!
EDIT: It doesn't support my kernel
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ExperimentalHDX said:
Yeah I'm using Resurrection Remix, I'm going to try that right now. I hope it works!
EDIT: It doesn't support my kernel
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Click to expand...
Click to collapse
You need googymax2 kernel or boeffla.
RazorMC said:
You need googymax2 kernel or boeffla.
Click to expand...
Click to collapse
I'm not familiar with kernels, I don't think I've ever messed around with them. I assume they can be downloaded and flashed like a rom or zip?
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Amir4Life said:
Hey OP, if you're on a custom ROM, i used to have same issues, the mA changes a lot, i had this STweaks App, it supports my kernel, i went to that MISC tab and checked box : Ignore unstable power sources; since then , i'm always on 1000 mA on wall and 899 mA on USB. Give it a try GL
Click to expand...
Click to collapse
IT WORKS! Finally! I can charge my phone and use it again! I'm still going to get a new battery as my phone is still extremely hot. I downloaded the latest version of googymax2, backed up my phone, flashed it, done what I had to do in the misc section and here I am with a rock solid 1000mA.
I'm very grateful for the replies in this thread, much appreciated, thanks a lot guys!
RazorMC said:
You need googymax2 kernel or boeffla.
Click to expand...
Click to collapse
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