[Q] Why might battery drain be worse on wi-fi? - Nexus 4 Q&A, Help & Troubleshooting

Hi - newbie here hoping to get to the bottom of my battery drain problem.
Somewhat unusually I think, I am seeing problems only when I have wi-fi switched on. It took me a while to realise as I have wi-fi at work and home and I wouldn't normally have turned wi-fi off as I always understood that 3G uses more power.
I tried installing BetterBatteryStats but I am not rooted so it is only giving limited information. What it does tell me is that I am draining the battery at a rate of 9% or so an hour on wi-fi and about 1.4% on 3G. This is with very light or no actual use of the phone. The top two wakelocks by a big margin are msm_hsic_host and PowerManagementService.WakeLocks.
I have virtually nothing running according to my running processes list - mainly the Google ones like Google Play Services, Google Keyboard.
I couldn't put my finger on exactly when this started but it was towards the end of 2013. I did have the really bad drain with Google Play for a few days until the next Android update came. What I'm seeing now is not as bad as that was. I couldn't say whether I had a period after that update when things for a while were better than they are now but my feeling is that things have never been great since the 4.4 updates.
Does anyone have any suggestions please? Am I going to have to root to get better info to debug this problem?

OK, I'm too having this problem and couldn't find any concrete solution for this.

Without full use of batterystats application, the information that you provide don't help much.
Could be many things.
Unleashed by my Nexus 4

Related

[Q] Battery drain/idle/standby?

Right, no matter what, I'm getting battery drain in stand by. No sync, Google now disabled, no mail, no location reporting/history etc. and yet I'm getting weird battery readings. In the pic below you can see, I'll let it idle for a couple of hours and the battery will drain. Then I'll use the n10 and the levels will spike. BBS shows that the n10 is awake for about 4 hours but the partial wakelock and kernel wakelock nothing untoward. I'm reluctant to root as I dont want to void my warranty but is any one facing similar issues?
yets said:
I'm reluctant to root as I dont want to void my warranty but is any one facing similar issues?
Click to expand...
Click to collapse
You can unroot and relock your device. Rooting should not be a warrenty issue.
See: " [NEXUS 10 TOOLKIT V1.3.0] Drivers, Backup, Unlock, Root, Flash, Mods + MUCH MORE"
http://forum.xda-developers.com/showthread.php?t=2001868&highlight=unroot
Features mentioned among many: "* Unlock/Re-Lock your Bootloader"
You will not lose warranty just by rooting the tablet. Nexus devices are pretty much made to be unlocked and Google provides the tools themselves to do the unlocking. I have heard of other people get warranty stuff done even while their tablet was rooted. This is because warranty is for hardware defects, which are not caused by root. If you have software problems then yes, those are to do with rooting. But normally you can fix software issues simply by finding a better ROM that has more bugfixes.
Also, that is some really terrible battery life. My tablet loses 1% every 7-9 days while idle. CM10.1 ROM from CraigGomez (November build) with KTManta kernel.
EniGmA1987 said:
You will not lose warranty just by rooting the tablet. Nexus devices are pretty much made to be unlocked and Google provides the tools themselves to do the unlocking. I have heard of other people get warranty stuff done even while their tablet was rooted. This is because warranty is for hardware defects, which are not caused by root. If you have software problems then yes, those are to do with rooting. But normally you can fix software issues simply by finding a better ROM that has more bugfixes.
Also, that is some really terrible battery life. My tablet loses 1% every 7-9 days while idle. CM10.1 ROM from CraigGomez (November build) with KTManta kernel.
Click to expand...
Click to collapse
Is it worth getting in touch with Google? I've had it since just after xmas? I'm about to factory reset it for the second time this week.
Why do you need to factory reset it so often?
I would root it, install a custom kernel, and run better battery stats to try and see what exactly is causing such a huge idle drain.
EniGmA1987 said:
Why do you need to factory reset it so often?
I would root it, install a custom kernel, and run better battery stats to try and see what exactly is causing such a huge idle drain.
Click to expand...
Click to collapse
I'd rather not factory restore it, this is my second time doing it. I'm starting from the beginning like it's a fresh install, just using the Google apps only to see if there are issues there and then adding more until I'm comfortable.
I want to root the tablet only as a last resort as I'm attempting to see if it is an app or it is the battery. I'd rather not brick it or void warranty only to find out it is the battery and then be unable to get a replacement.
There must be somebody that has similar problems?
So, factory reset, this is after 24 hours; This is not kosher. Stock apps. Only thing syncing if you can call it that was Google now. No syncing or anything. Purely from stock apps with updates. Stock battery graph says that it's not awake but stats say it's awake for 19 hours.This doesn't even come close to advertised idle/stand by time. Surely I should return it? I was adamant that I wouldn't complain but I didn't pay so much money for it to come out with this as stock performance.
That is massive usage from Android OS. Something in there is causing a wakelock, which means it is probably a software problem. If you were rooted and had better battery stats installed then it would tell you exactly what the wakelock was from. The built in Android battery info just gives it a generic "Android OS". It looks to me like that sudden sharper downhill slope is the point which the wakelock started. Although that is a bit steep drain before that point too. The point before the sharper decline section looks closer to a non-deep sleeping device stuck at its lowest frequency, but it had to have been sleeping if the device says it was only awake for 14 hours. Still, that 14 hours is a wakelock. Probably from the kernel. Cant say what it is exactly unless you have a better app installed
The Google Services thing is probably Google Now sucking up battery. It tends to do that.
You can either continue to diagnose this problem from the software/firmware or you can just send it back if you want.
EniGmA1987 said:
That is massive usage from Android OS. Something in there is causing a wakelock, which means it is probably a software problem. If you were rooted and had better battery stats installed then it would tell you exactly what the wakelock was from. The built in Android battery info just gives it a generic "Android OS". It looks to me like that sudden sharper downhill slope is the point which the wakelock started. Although that is a bit steep drain before that point too. The point before the sharper decline section looks closer to a non-deep sleeping device stuck at its lowest frequency, but it had to have been sleeping if the device says it was only awake for 14 hours. Still, that 14 hours is a wakelock. Probably from the kernel. Cant say what it is exactly unless you have a better app installed
The Google Services thing is probably Google Now sucking up battery. It tends to do that.
You can either continue to diagnose this problem from the software/firmware or you can just send it back if you want.
Click to expand...
Click to collapse
Thanks. To be fair I think if purchasing such an item, you shouldn't have to become a developer/hacker to study such an issue. Haha! I've used Google now when I first got the tablet and not understanding what it was had it enabled and get there was no battery drain to such an extent.
Fair play to Google, they've agreed to send me out a new one. It reached a point where I couldn't enjoy using the tablet and everything was a test to see what could be causing the issue.
I won't bad mouth Google, as I understand that things do become faulty and these items are complex enough. On another note I called up the RMA team in American (I googled the wrong number) and the two ladies were more than helpful. I don't know how anyone has problems with them. Maybe it was my British accent that did it!
So, I've got a replacement and so far it is not displaying the same issues. It got me thinking about when my original problem started and I think it started when it was updated to 4.2.2. This model comes stock 4.2.1 and it's prompting me to update. Should I bother? Was I just unlucky? Is there a specific way to ensure that the update is a clean update?
yets said:
... This model comes stock 4.2.1 and it's prompting me to update. Should I bother? ...
Click to expand...
Click to collapse
Upgrade to 4.2.2 as it's more stable, especially with the Chrome browser but there are additional bug fixes that address overall stability. A rule of thumb is to install new apps one at a time so you can judge if it causes instability.
You can also install, free from the playstore, "Bootlog Uptime" which tracks crashes and sometimes provides crash related information from the Android logs. It is very handy when you are trying to determine the cause of a force close, freezing or general odd behaviour.
3DSammy said:
Upgrade to 4.2.2 as it's more stable, especially with the Chrome browser but there are additional bug fixes that address overall stability. A rule of thumb is to install new apps one at a time so you can judge if it causes instability.
Click to expand...
Click to collapse
Yeah, I kind of did that when I factory reset it, I just loaded up the stock apps, desynced everything, logged out of everything that wouldn't be used, disabled Google Now and location settings, rebooted and it was still iffy. Before I sent it back I left it for a day and the battery stats were going up and down like a roller coaster. Could it of been a faulty battery? I would like to update but I'm so wary of the problem coming back.
You can also install, free from the playstore, "Bootlog Uptime" which tracks crashes and sometimes provides crash related information from the Android logs. It is very handy when you are trying to determine the cause of a force close, freezing or general odd behaviour.
You may have been unlucky. I have had great battery on all 4.2.2 some ROMs/kernels make a difference.
Sent from my Nexus 10 using XDA Premium HD app
So, after a few days my new Nexus 10 started displaying exactly the same issues as before and I had just about ruled everything out. I used BBS again and looked at the stats, with PowerManagerService being the main culprit but the numbers in Partial wake locks just didn't match. There were very little wakelocks but something was still draining. I looked at the CPU and for most of the CPU was running at 200hz in deep sleep. I just couldn't figure it out and looked at the Running apps and there was only a few but one remained constant throughout all my tests and that was the Settings app. I took a punt and stopped it and cleared it from recent apps. Lo and Behold, the drain has disappeared and the battery doesn't drop at all in idle.
Excuse my noobiness, I didn't know that Android treated Settings as a separate app? On my Samsung S3, this isn't the case, once you leave settings it closes it and suspends it causing no drain.
200MHz in deep sleep doesnt make sense. Cause deep sleep is different than a MHz value. If you are mostly on 200MHz then that means something on the tablet is not letting you sleep properly.
EniGmA1987 said:
200MHz in deep sleep doesnt make sense. Cause deep sleep is different than a MHz value. If you are mostly on 200MHz then that means something on the tablet is not letting you sleep properly.
Click to expand...
Click to collapse
Sorry, didn't make myself clear. BBS was saying that tablet was running at 200mhz preventing it from deep sleep and that thing causing it was having the System Settings app not closing. Hope that makes sense and helps people in the future.
Well that is certainly an interesting find. If you restart the tablet and dont open settings does the tablet sleep fine?
Yes, if you restart it and avoid going into settings, it sleeps happily only waking sync if you have any. It has been idling for about 10 hours without dropping.
I've attached a picture and if you compare to the one I posted at the start of the thread you can see a clear difference. There was a point where I forgot to close Settings and you can see the drain (middle of the graph).
Somehow I don't think this is normal. It dropped almost 30% at home while I was at work. Google now is disabled but groove IP running. No apps that should be sucking battery, but its mostly the android OS. Any thoughts?
Sent from my Nexus 10 using xda app-developers app
Probably the exact same thing as the guy above me. Doesnt look like you are deep sleeping one bit.

[Q] Battery life

Hello everyone I hope I got the right forum
I have a problem with the new system update released
The new update did not help at all to my nexus
I ran out of battery really fast, before the update it was fine
Battery had stayed a long time
What should I do?
1headshot said:
Hello everyone I hope I got the right forum
I have a problem with the new system update released
The new update did not help at all to my nexus
I ran out of battery really fast, before the update it was fine
Battery had stayed a long time
What should I do?
Click to expand...
Click to collapse
Read this:
http://forum.xda-developers.com/showthread.php?t=2385843
To get battery like this:
http://forum.xda-developers.com/showpost.php?p=44364085&postcount=5089
:cyclops:
Galaxo60 said:
Read this:
http://forum.xda-developers.com/showthread.php?t=2385843
To get battery like this:
http://forum.xda-developers.com/showpost.php?p=44364085&postcount=5089
:cyclops:
Click to expand...
Click to collapse
A quick look through that thread shows that it is focused on problems relating to Google Services. Since the update, I too am having issues with the battery draining more quickly than it ever did before. However, it appears to be msm_hsic_host wakelock causing the problem. Google services are a very small part of my battery usage.
I have posted a couple times about it in various threads, but I haven't seen a fix that applies to 4.3.
The battery drain is out of hand. I love my N4, but this is a big turn off for me.
I have tried these configurations to make sure it wasn't an oddball app causing the problem -
Stock 4.3 with stock Kernel - no root/stock recovery - Only apps being the ones that load on a factory reset
Wiped all partitions and reloaded stock 4.3/gapps/no root/stock recovery
Stock 4.3/rooted/TWRP/Stock gapps
Stock 4.3/rooted/TWRP/gapps+ a handful of other apps (photobucket/es file explorer/bbs - essentially, my normal config)
Added note - I also have cell broadcasts of all types turned off.
All of the above combinations respond the same way in regard to battery drain overnight. 7-9 hours off the charger/no screen time nets me 25-30% loss of battery from a full charge. msm_hsic shows up in BBS with 1.75 to 2.5 hours of wake time and is the highest power consumer. Putting the phone in flight mode reduces power consumption to ~2% over the same 7-9 hour timeframe. Just turning wifi off doesn't change anything.
Ideas anyone?
Calebz said:
A quick look through that thread shows that it is focused on problems relating to Google Services. Since the update, I too am having issues with the battery draining more quickly than it ever did before. However, it appears to be msm_hsic_host wakelock causing the problem. Google services are a very small part of my battery usage.
I have posted a couple times about it in various threads, but I haven't seen a fix that applies to 4.3.
The battery drain is out of hand. I love my N4, but this is a big turn off for me.
I have tried these configurations to make sure it wasn't an oddball app causing the problem -
Stock 4.3 with stock Kernel - no root/stock recovery - Only apps being the ones that load on a factory reset
Wiped all partitions and reloaded stock 4.3/gapps/no root/stock recovery
Stock 4.3/rooted/TWRP/Stock gapps
Stock 4.3/rooted/TWRP/gapps+ a handful of other apps (photobucket/es file explorer/bbs - essentially, my normal config)
Added note - I also have cell broadcasts of all types turned off.
All of the above combinations respond the same way in regard to battery drain overnight. 7-9 hours off the charger/no screen time nets me 25-30% loss of battery from a full charge. msm_hsic shows up in BBS with 1.75 to 2.5 hours of wake time and is the highest power consumer. Putting the phone in flight mode reduces power consumption to ~2% over the same 7-9 hour timeframe. Just turning wifi off doesn't change anything.
Ideas anyone?
Click to expand...
Click to collapse
As far as I know, this wakelock is caused because of the usage of 3G, like browsing, syncing, or any other thing that consumes data. This drain for me is usually between 10%-15%. There is no way t completely get rid of it, because it is part of the Android system.
There are many kernels that tried to fix this, about stock image and JW branch I don´t know, but maybe you should try to install an AOSP variant, because AOSP has many bugs fixed.
Also I remember I read somewhere that also bad radio could be causing this kind of issues, so try to get latest radio/bootloader for 4.3.
Hope it helps.
:highfive:
Galaxo60 said:
As far as I know, this wakelock is caused because of the usage of 3G, like browsing, syncing, or any other thing that consumes data. This drain for me is usually between 10%-15%. There is no way t completely get rid of it, because it is part of the Android system.
There are many kernels that tried to fix this, about stock image and JW branch I don´t know, but maybe you should try to install an AOSP variant, because AOSP has many bugs fixed.
Also I remember I read somewhere that also bad radio could be causing this kind of issues, so try to get latest radio/bootloader for 4.3.
Hope it helps.
:highfive:
Click to expand...
Click to collapse
To avoid having loose ends out there (in case anyone finds this thread during a search) - The problem turned out to be the latest radio. Not my lack of it :lol:
After flashing back to the .48 radio, from the .84 radio - everything is back to normal. No more weird Android OS wakelocks. ~3-4% battery drain overnight instead of 20-30%
There are more and more people popping up on XDA with this problem. So far, all of them that I have seen are outside the US. A few have even discovered the same fix.
So - future person that finds this thread during a search, look into the possibility of flashing back to version .48 of the radio. Hopefully this saves someone the trouble of experimenting with a bunch of different ROMs and kernels.
Calebz said:
To avoid having loose ends out there (in case anyone finds this thread during a search) - The problem turned out to be the latest radio. Not my lack of it :lol:
After flashing back to the .48 radio, from the .84 radio - everything is back to normal. No more weird Android OS wakelocks. ~3-4% battery drain overnight instead of 20-30%
There are more and more people popping up on XDA with this problem. So far, all of them that I have seen are outside the US. A few have even discovered the same fix.
So - future person that finds this thread during a search, look into the possibility of flashing back to version .48 of the radio. Hopefully this saves someone the trouble of experimenting with a bunch of different ROMs and kernels.
Click to expand...
Click to collapse
I put your post into my thread for people looking for an answer to this wakelock. Hope you don´t mind. Credits to you are there.
http://forum.xda-developers.com/showthread.php?p=44122105
:fingers-crossed:

Android OS consuming huge amount of battery

hi guys first of all i apologize for this post not having detailed info such as ss from BBS,GSAM and WLD and will post them later !!
and as always i guess with most battery related problems it happened suddenly and i really mean suddenly the day before yesterday everything was perfectly fine and i didn't have that ridiculous battery drain !!
i woke up yesterday only to find out that Android OS is taking more than 50% of battery usage with a drain like 20% over night
restarted many times and by the end of the day i installed GSAM and WLD (wakelock detector)
froze most of apps including the ones i installed recently but i didn't install that battery hog apps (nothing unusual) and also they didn't appear in partial wakelocks section of BBS
btw i don't use any fake battery extender tools or memory boosters it's just Greenify
i observed that sometimes when i unlock my device (i use knock code btw if that matter!!) wifi gets disconnected and reconnect again (wifi icon disappear and re-appear again in 3 secs or so)
i'll upload ss in a couple of mins
thank you
Edit: SS Added
and notice how it drained 5% in just 40 mins (20 mins SOT) !!!
ADM!RAL said:
hi guys first of all i apologize for this post not having detailed info such as ss from BBS,GSAM and WLD and will post them later !!
and as always i guess with most battery related problems it happened suddenly and i really mean suddenly the day before yesterday everything was perfectly fine and i didn't have that ridiculous battery drain !!
i woke up yesterday only to find out that Android OS is taking more than 50% of battery usage with a drain like 20% over night
restarted many times and by the end of the day i installed GSAM and WLD (wakelock detector)
froze most of apps including the ones i installed recently but i didn't install that battery hog apps (nothing unusual) and also they didn't appear in partial wakelocks section of BBS
btw i don't use any fake battery extender tools or memory boosters it's just Greenify
i observed that sometimes when i unlock my device (i use knock code btw if that matter!!) wifi gets disconnected and reconnect again (wifi icon disappear and re-appear again in 3 secs or so)
i'll upload ss in a couple of mins
thank you
Edit: SS Added
and notice how it drained 5% in just 40 mins (20 mins SOT) !!!
Click to expand...
Click to collapse
Little more details about rom,kernel but wifi is destroying your battery,that is for sure. It's waking the phone thousands of time as you can see yourself
Sent from my LG-D802 using Tapatalk
Stevica Smederevac said:
Little more details about rom,kernel but wifi is destroying your battery,that is for sure. It's waking the phone thousands of time as you can see yourself
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
yea i noticed that i read about something related to wifi driver issue idk
thx for reply tho and for my device it's stock D800y20 rom just rooted and even with stock recovery if it matter
This has started for me today also! Not sure what is causing it but I was fine prior to today. Maybe its a google Play services update?
keeepinitgansta said:
This has started for me today also! Not sure what is causing it but I was fine prior to today. Maybe its a google Play services update?
Click to expand...
Click to collapse
idk but last google play service update was 10 days ago here !!
ADM!RAL said:
hi guys first of all i apologize for this post not having detailed info such as ss from BBS,GSAM and WLD and will post them later !!
and as always i guess with most battery related problems it happened suddenly and i really mean suddenly the day before yesterday everything was perfectly fine and i didn't have that ridiculous battery drain !!
i woke up yesterday only to find out that Android OS is taking more than 50% of battery usage with a drain like 20% over night
restarted many times and by the end of the day i installed GSAM and WLD (wakelock detector)
froze most of apps including the ones i installed recently but i didn't install that battery hog apps (nothing unusual) and also they didn't appear in partial wakelocks section of BBS
btw i don't use any fake battery extender tools or memory boosters it's just Greenify
i observed that sometimes when i unlock my device (i use knock code btw if that matter!!) wifi gets disconnected and reconnect again (wifi icon disappear and re-appear again in 3 secs or so)
i'll upload ss in a couple of mins
thank you
Edit: SS Added
and notice how it drained 5% in just 40 mins (20 mins SOT) !!!
Click to expand...
Click to collapse
Hello,
I have at 80% the same problem, I loose 7-10% of battery per hours, without SIM, wifi, bluetooth...
I already tried most of all roms, kernel, try all cpu governor.
If you want to see my topic : http://forum.xda-developers.com/lg-g2/help/lg-g2-d802-battery-draining-5-0-2-t3256313/
If you are ready to dismantlle the phone, do it, and see if there is a problem inside. I hope you will resolve your problem and tell me if one day you gonna have a better battery
Dlazzy said:
Hello,
I have at 80% the same problem, I loose 7-10% of battery per hours, without SIM, wifi, bluetooth...
I already tried most of all roms, kernel, try all cpu governor.
If you want to see my topic : http://forum.xda-developers.com/lg-g2/help/lg-g2-d802-battery-draining-5-0-2-t3256313/
If you are ready to dismantlle the phone, do it, and see if there is a problem inside. I hope you will resolve your problem and tell me if one day you gonna have a better battery
Click to expand...
Click to collapse
yea almost identical problem
i did tot reinstall and see how things go !!
sadly nothing changed and wifi still eats huge amount of battery idk how did this happen
well i'll update thread if anything changed
peace out guys
I had the same problem with battery drain(although not as severe) along with huge data consumption when using a significantly modified(i.e. heavy debloat and ota disabled) rooted stock rom. I tried a few customs roms and dorimanx kernel(not at the same time), and even though battery drain wasn't as bad, they were are waaaay to buggy to be used everyday(especially the dorimanx kernel, it's really bad).
Just last week I tot back to KK and ota updated to the latest LP rom(lost root unfortunately). Then I uninstalled/disabled every app I could/needed. Everything is very fast, smooth, and stable again. I now lose 1-2% every 8hrs in standby with syncing and wifi/data enabled, bluetooth and nfc disabled. I regularly get 5-6hrs sot over 48hrs with moderate use and brightness on auto.
I do have a new battery though - my old one( came with my "refurbished" phone from freedompop) gave me 2-3hrs of sot - but that was when I first got it and before I started modifying anything.
stan54 said:
I had the same problem with battery drain(although not as severe) along with huge data consumption when using a significantly modified(i.e. heavy debloat and ota disabled) rooted stock rom. I tried a few customs roms and dorimanx kernel(not at the same time), and even though battery drain wasn't as bad, they were are waaaay to buggy to be used everyday(especially the dorimanx kernel, it's really bad).
Just last week I tot back to KK and ota updated to the latest LP rom(lost root unfortunately). Then I uninstalled/disabled every app I could/needed. Everything is very fast, smooth, and stable again. I now lose 1-2% every 8hrs in standby with syncing and wifi/data enabled, bluetooth and nfc disabled. I regularly get 5-6hrs sot over 48hrs with moderate use and brightness on auto.
I do have a new battery though - my old one( came with my "refurbished" phone from freedompop) gave me 2-3hrs of sot - but that was when I first got it and before I started modifying anything.
Click to expand...
Click to collapse
How is dorimanx kernel bad? How many user downloads he has,lots and lots then are we thousands of user wrong using a bad kernel, come on . Maybe it didnt work for you. But out of those thousands of users cant be wrong. If it was that bad no one would download. Just saying , you should just say it didnt work for you.
stan54 said:
I had the same problem with battery drain(although not as severe) along with huge data consumption when using a significantly modified(i.e. heavy debloat and ota disabled) rooted stock rom. I tried a few customs roms and dorimanx kernel(not at the same time), and even though battery drain wasn't as bad, they were are waaaay to buggy to be used everyday(especially the dorimanx kernel, it's really bad).
Just last week I tot back to KK and ota updated to the latest LP rom(lost root unfortunately). Then I uninstalled/disabled every app I could/needed. Everything is very fast, smooth, and stable again. I now lose 1-2% every 8hrs in standby with syncing and wifi/data enabled, bluetooth and nfc disabled. I regularly get 5-6hrs sot over 48hrs with moderate use and brightness on auto.
I do have a new battery though - my old one( came with my "refurbished" phone from freedompop) gave me 2-3hrs of sot - but that was when I first got it and before I started modifying anything.
Click to expand...
Click to collapse
Can you tell us what app have you uninstalled and disable ?
What have you debloat ?
Thank you very much
My G2 (vs980) has also been suffering from a sudden battery drain. Android OS and Android System seem to be the problem. They are now second and third on the list of battery usage, after the screen. Before now, they were never that high on the list. I noticed this last weekend, when I kdz to the latest update for the vs980, which is 3AA. After noticing this, I flashed the xceed kernel, then cloudy with dorimanx kernel, and the battery drain continued. I even kdz back to kitkat, still the same, then I flashed AICP 11, and still the same battery drain by Android OS and system. Finally, I restored a backup of stock lollipop 39A but, the issue continued so I turned on airplane mode and it seems to help a bit. I still notice battery life isn't the same as before. The os and system still drain more than usual even on airplane mode.
Kind of glad to hear I'm not the only one with this issue. I don't think I need a new battery, since I bought the phone new in April 2015 from Bestbuy.
Also Gsam, shows the temperature of phone between 80°-90°F, where before it would be in the low to mid 70s. One time, it even got up to 104°F, funny thing is, it doesn't even feel that hot in my hand.
Hopefully, we can find out what's causing this because I really liked the battery life on this phone. Even when people complained about the battery life being worse on 5.0.2, I was pretty happy with it. All my previous phones can't compare to the g2. Now I feel like upgrading though lol.
Sent from my VS980 4G using Tapatalk
raptorddd said:
How is dorimanx kernel bad? How many user downloads he has,lots and lots then are we thousands of user wrong using a bad kernel, come on . Maybe it didnt work for you. But out of those thousands of users cant be wrong. If it was that bad no one would download. Just saying , you should just say it didnt work for you.
Click to expand...
Click to collapse
When I tried the version that was out a month or two ago it wasn't nearly as smooth as stock, even after conservatively messing with the kernel app settings. The worst was that it also cut out tethering and my flashlight when the screen shut off. Maybe the recent updates have fixed some of the issues, but I doubt it. Could be that he doesn't have access to the sprint variant which I have...
Either way, just because 'thousands' of people use it doesn't necessarily mean that it's good - 99.9% of those users have no idea how to code or how a kernel is written. Their knowledge goes as far as following picture guides online - which a 5 years old could do. Just look at the most recent change log - those 'fixes' were to glaringly huge problems that shouldn't have been made in the first place and people were blissfully using it the whole time. Think about how many thousands of other bugs their must be. Not to mention hacking up code made by professionals at huge companies could lead to many other problems. Obliviously the stock kernel has bugs as well, but it works and is fast and stable so I see no need for using a hacked together kernel made by one amateur that doesn't even have my version of the phone to test it on. I wanted it to be good - which Is why I went to the trouble of installing it, but it's definitely NOT.
Dlazzy said:
Can you tell us what app have you uninstalled and disable ?
What have you debloat ?
Thank you very much
Click to expand...
Click to collapse
I uninstalled ALL of the stock apps that can be uninstalled. The ones I disabled are aosp keyboard, app updates, browser, calendar, cloud print, favorite contact widget, google play books, games, movies & tv, newstand, google+, lg voice command speech pack, music, music(the widget - it always runs in the background even without being on the homescreen), notebook, polaris viewer, quicktranslator, swype, talkback, voice command. I would have liked to disable a few more but I'm not rooted so I couldn't.
I use nearly all of the google products like chrome,gmail, calendar, docs, keep, music, photos, news and weather,translate,etc...so having the stock lg ones enabled was redundant. I also only have the bare minimum of installed apps that I need. Nearly all of them are made my major corporations i.e Chase, BofA, ebay, paypal, freedompop, microsoft, swiftkey etc. I have NO games or any small apps that need a ton of permissions. The only small apps are feedly, print hammermill, privacy flashlight(240kb, no ads, no permissions) and bubble level(180kb, no ads, no permissions).
I also go through every settings in every app to make sure it's what I want. And I restart my phone every time I take it off the charger. IMO having a clean and no frills system that is set correctly is the key to performance and battery life.
I just want want to clarify that I average 4-5hrs per 1% in standby since it doesn't seem to hold as well as it gets closer to 0%.
theres this app that have lots of info on battery..
thx guys for adding your experience
i hoped moded kernels would've reduced that amount as they should have necessary drivers for wifi which was somehow got messed up but from your reply i guess i've to look somewhere else
idk how to put this, well this isn't a solution at all i actually didn't start working on it yet just thought to share what i found so far !!
so it's just a reference for any one whose luck was bad enough to have a wakelock like that !
1st of all in most cases neither the device nor it's battery are at fault *you need to understand that*
faulty battery doesn't show up kernel related wakelocks instead they drain without a reason so i hope ppl stop accusing battery in every battery drain thread!
2nd after understanding that you'll have to deal with the environment your phone is used in
to put it simple it's your router and all devices in your current network !! (idk though why not all devices get affected by that or why it just started now, tough luck yea)
those threads may help
http://forum.xda-developers.com/showpost.php?p=31975007&postcount=2
http://forum.xda-developers.com/google-nexus-5/help/getting-rid-wlanrxwake-wakelocks-t2519294
what i'll try to do is add an old access point to my router and connect my phone to it as i don't have a replacement router right now!!
i'll let you know if things were improved !
hey guys
i thought to share what i did so far and before i go on there is a bad news and a good news !!
i would start with the bad news first !
-no rom could solve this issue so you don't really need to format everything and start from scratch especially if you didn't mess around too much and you found it started suddenly like here, i've tried couple of roms including latest CM13 build it wasn't that bad but it didn't solve the drain that much either !!
-now some ppl may see this bad and some may don't care (which means good!!) google services are the ones responsible for this drain
well man you didn't come up with anything new and i see you've got a problem getting straight to the point besides you talk too much
i'm sorry
now you have to sacrifice your google services background sync including "GCM" if you are using any services similar to pushbullet or notification mirroring you'd understand why it's important
anyway if you are good with that you may install and yea it works with latest google play services
https://play.google.com/store/apps/details?id=com.playfulgeeks.gservicefix
and do as instructions (and believe it'll work if you did steps right)
if you prefer manual way then you'll need "app ops xposed module" and deactivate every "wake up" permission from google services
this guide may help but remember we don't have tools natively in our roms so don't bother downloading "shortcut maker" and go through your settings app to find "privacy guard" or "app ops" we don't have those natively like them
http://forum.xda-developers.com/oneplus-one/general/guide-google-play-services-battery-t2832525
i'll share some ss from stock battery stats
i'm sorry for my long post and i hope it'll help someone with same issue
idk if it solved issue completely but things are stabilized a lot now and i just lost 1% over night not 20% or 30% like before !!
and i'm using lollipop now so i guess it's not that bad for what i heard about bad lollipop battery since it's my first time trying it !!
and btw real SOT should be +40 mins so the real SOT is 2H-47M cuz i restarted my phone to apply that fix and for some reason battery stats doesn't stick between reboots !!
if anyone interested in trying that rom it's for D800 only btw and thx to @Swetnes for his work rom feels pretty stable and solid :good:
link: http://forum.xda-developers.com/att-g2/development/rom-t3152368/
good luck everyone

BUGS & BATTERY USAGE on JULY official rom

hi MI A1 owners.
for those brave enough to use the latest vanilla, official OTA rom, what change did you notice?
does the battery still suffer huge drain that appeared in 2018 roms?
it's a big "NOPE" for me to update, i'm still on official DEC rom because of this drain issue.
Battery life is good on 8.1 no issue for me getting 5-6 hours SOT on gaming.
Never had battery drain problems. Only "issue" is notification led not blinking.
Just noticed that led light is no longer blinking when notifications arrive. Light stays on only when screen is off. Also Bluetooth is constantly disconnecting.
Ambient display isn't working for me.
Led notifier is also not blinking anymore!
Led not blinking, proximity sensor doesn't work properly all the time, some scrolling lag. That's what I've got so far
dudes thanks for your answers.
i'm just more convinced to not doing the update.
maybe the drain i had was magisk-related. (?)
Nothing for me, even got ten hours of screen after some cycles. Led doesn't bother me and it's the only thing i noticed.
Yes, the LED is always on, which is annoying, but the bigger issue is there is no change in the battery drain. I charged to 100%, set the phone down and did not move it or use it overnight. 8 hours later almost 14% of battery was drained. I have tried everything I can think of to try, including turning off high accuracy location, not allowing any location things like safe area, etc. and still I get this drain even when the phone is not in use. Android kernel and system consumed 85% of that usage, and System UI, Play Store and Phone Services accounted for 7%! SO basically, basic Android paired with the A1 hardware seems to be the issue and I don't know that there is any fix for that.
At one point, I thought an upgrade to the A2 was going to be a no brainer, but with the issues with updates being broken and this battery drain issue that nobody seems to be able to pinpoint and resolve, I am thinking I may not buy ANY other Xiaomi. It may be time to try something else because the only way I can get two days of battery is to turn on airplane mode when the phone is not in use!
KB_Thailand said:
8 hours later almost 14% of battery was drained.
Click to expand...
Click to collapse
Dunno what to say man. Mine is below.
2-3% at most over night.
And now it would appear that there is an issue with airplane mode.
I put the phone into Airplane mode at 2300 last night with 90% battery and did not pay attention to it. This morning I turned to phone on to find there was only 69% battery left, and WiFi was working. (see screen shot) WTF???? I have started using airplane mode to keep the battery drain to a minimum when the phone is not in use, and now it would appear that this doesn't work either.
I am REALLY getting frustrated with Android and Xiaomi as it seems that every time they do an update, something else goes bump! I have gone from totally happy with the AI when I first got it to being ready to write off Xiaomi as a company I would consider for purchase.
IjazCI said:
Is your WiFi scanning is on. ( Under location / scanning)
Play services also cause these type of sudden battery losses.
Try downloading latest play services apk from apkmirror . Latest one is
"com.google.android.gms_12.8.74_(090408-204998136)-12874034_minAPI26(arm64-v8a,armeabi-v7a)(480dpi)_apkmirror.com.apk"
Uninstall your current one. Install this .
Power off your phone for a few seconds and reboot.
Click to expand...
Click to collapse
Thanks for the thoughts, but unless I totally misunderstand what airplane mode is, WiFi should not be active when airplane mode is invoked. You can see by the screen cap that airplane mode is on AND WiFi is active. This seems to be a one off as it has not happened again for the last two days. I turn airplane mode on to stop the overnight battery drain while the phone is doing nothing. I have location set to GPS Only. IIRC play services was just updated 3 days or so ago, so it should have the latest version. I will check it and see though. Again, thanks for the thoughts.
KB_Thailand said:
At one point, I thought an upgrade to the A2 was going to be a no brainer, but with the issues with updates being broken and this battery drain issue that nobody seems to be able to pinpoint and resolve, I am thinking I may not buy ANY other Xiaomi. It may be time to try something else because the only way I can get two days of battery is to turn on airplane mode when the phone is not in use!
Click to expand...
Click to collapse
I can't logically understand why you would think it is the hardware causing the issue. If it was hardware, what you are seeing would be happening to every owner of the phone and clearly that is not happening. By saying it is the hardware when you have other software loaded is akin to saying your car's air conditioning doesn't work properly when you have all the windows wound down.
There is something loaded on your phone that is causing the systemUI to be working when you think nothing should be happening. The first thing I see on the screenshot on your phone is that in the top left of the screen you have two non standard icons. That tells me that you have a skin or non standard software constantly running.
The way to solve any issue like this is to go back to basics. I would get the fresh rom and do a Miflash whilst keeping your data. Make sure you do a backup first.
If that does not work, back up your data and do a clean install and check the phone's battery life. Do not load any non google software / app at this stage.
Then each day add one app and test for 24 hours. You will find this issue and the offending app or apps and I would be willing to bet you a few Singhas it will be an app you downloaded not the hardware causing this.
ludditefornow said:
I can't logically understand why you would think it is the hardware causing the issue. If it was hardware, what you are seeing would be happening to every owner of the phone and clearly that is not happening. By saying it is the hardware when you have other software loaded is akin to saying your car's air conditioning doesn't work properly when you have all the windows wound down.
Click to expand...
Click to collapse
Actually, I think it is a combination of hardware/software, but that is just a WAG. Others have noted the exact same issue without running the same software. My bet would be on the RCS services stuff.
There is something loaded on your phone that is causing the systemUI to be working when you think nothing should be happening. The first thing I see on the screenshot on your phone is that in the top left of the screen you have two non standard icons. That tells me that you have a skin or non standard software constantly running.
Click to expand...
Click to collapse
Those icons are my Email client and GSAM Battery Monitor (presently 0.1% and 0.8%) and are the only two constantly running programs other than the stock apps and Sophos (0.3%). Neither use much battery compared to the Android stuff. Presently Kernel is 41.6%, RCS/Phone is 30.3%. SystemUI is 3.3%, Play Services is 2.0% and Phone Services is 1.8%
The way to solve any issue like this is to go back to basics. I would get the fresh rom and do a Miflash whilst keeping your data. Make sure you do a backup first.
If that does not work, back up your data and do a clean install and check the phone's battery life. Do not load any non google software / app at this stage.
Then each day add one app and test for 24 hours. You will find this issue and the offending app or apps and I would be willing to bet you a few Singhas it will be an app you downloaded not the hardware causing this.
Click to expand...
Click to collapse
Good advice. I will do this when I have a few days to play with it. In the interim, it's airplane mode every night. Thanks for the reply. If it turns out to be one of these apps, let me know where to send the Singhas.
Good luck with it. I hope you find the solution. It can be frustrating, but getting to the bottom of it will be worthwhile. I haven't used Sophos for a long time and even then it was for PC. I am not up with how Sophos AV is integrating into Android but that would be my first guess.
I have only had one issue with this phone after updating and it was that the OS was constantly asking for a password on unlock after using fingerprint not just on startup. A clean install solved it and I have been trouble free since with every update. With over 50 PCs in my office, I could only wish that I had so few issues with Windows updates as I do with Android.
For me, night light auto schedule not working properly.
I can't tether via wifi/bluetoth/usb
Made another post with the problem.
ludditefornow said:
Good luck with it. I hope you find the solution. It can be frustrating, but getting to the bottom of it will be worthwhile. I haven't used Sophos for a long time and even then it was for PC. I am not up with how Sophos AV is integrating into Android but that would be my first guess.
I have only had one issue with this phone after updating and it was that the OS was constantly asking for a password on unlock after using fingerprint not just on startup. A clean install solved it and I have been trouble free since with every update. With over 50 PCs in my office, I could only wish that I had so few issues with Windows updates as I do with Android.
Click to expand...
Click to collapse
Just for grins and giggles, I uninstalled my email client, GSAM, and Sophos, the only programs that run constantly other than system and Line. I then turned my phone off and back on, forced stopped Line, charged it to 100% and set it down with the screen off. It did not move of get used for 8 hours, yet it still used 12% of the battery. (see screenshots) This is better than the 20% with those apps installed, but still not close to what I would consider normal. When I first got the phone, it easily lasted 2-3 days between charges, with 6-7 hours SoT. Overnight would use MAYBE 2% of the battery. Now if I want it to last 2 days I need to turn on airplane mode overnight and then I can make it through a day.
So I guess the next step is to do as you recommended and load up the fresh rom when I have time to mess with it. At least I am now pretty sure that those apps aren't the culprits causing the biggest part of the battery drain. I hate to do it, but I am seriously thinking of a factory reset and seeing if that clears the issue. Would that put me back to Nougat?
IjazCI said:
I always disable carrier services apk. As rcs is not here in India.
Click to expand...
Click to collapse
How do you disable this apk? I seriously think this is the major culprit in the battery drain.
KB_Thailand said:
charged it to 100% and set it down with the screen off. It did not move of get used for 8 hours, yet it still used 12% of the battery. (see screenshots) This is better than the 20% with those apps installed,
Click to expand...
Click to collapse
So those apps were causing 40% of of the 20% of the battery drain. That is a good start. I am confident there are software issues with your phone. I see you have some GPS app on your home screen, if that was running askew, it might be constantly pinging. That is just a guess.
In things like this, work methodically through it. But of cause a hard reset would be the best way to go. I see no reason why you wouldn't stay on your current version after a hard reset.
If you want to go make to version 7 you would need to use the MiFlash program and a downloaded standard fastboot rom. You may need to do something else to the phone to go back to 7, but I would not think so.

[RESEARCH] Mobile network standby drain (Oreo)

Since the first release of oreo I started using the rom as a daily driver, later on paired with a good kernel it had some good perfomance
But after some days of using the rom i started to notice a huge battery drain caused by the Mobile network standby process?
My battery was old (OEM 2014 battery) so i decided to revert back to lineageOS just after a couple of days where I haven't had any issues with that mobile network standby
Now I'm really curious what is causing this issue,drain because I am using the phone on the same settings as on 7.1 nougat, I am living in a country where all networks run on 3G,H+,2G etc. so no 4G if this can be a cause
Changed the network modes many times and tested throughout the days but there was no sucess the drain was still persist, tried updating,downgrading bootloaders swithing modems but again no sucess
If there, in the world of android is any solution, here is the thread to discuss about this issue. :fingers-crossed:
I've wondered this too. I've been running los15 on my g900v , I rooted and boot the first ROM that would work without having or remembering todomuch, I ran the first custom kernal I could find via google, and ran whatever was noted as the latest Verizon modems. its like right off the bat, smooth , consistent battery life and nice. Then the next day I noticed things would crash, my Bt temperamental at best and restarted it just to get by. if I have sync on at home, WiFi off, it just chills , if I turn sync off and drive around town, my battery life gets eaten by the unknown. I pulled some logs to see whats up with my BT but haven't got around to it yet. But my battery too is old (I literally found my s5 in the trash) and I run weird processes and tweak settings all the time just to mess with it, so that could be it to. If I see anything weird I'll let you know.
I'm struggling with this issue for months, since the first port of an Oreo custom ROM (LOS and RR) for the Galaxy A3 Duos (my device) started being developed.
From the beginning I had this problem, and what, since then, puzzles me the most is the fact that only some of us, flashing the same ROM in the same device, experience the issue. Whenever I flash any of those ROMs, even before installing any user apps (or when running in safe mode), the drain is there, which leads me to think that the culprit must be some setting: not an app, because I have none installed; not the ROM itself, because not everybody has this problem.
Unfortunately there seems to be no developers looking into this bug.
For the sake of information, I've observed two things that should help to narrow down the issue; or maybe not.
First, all the devices affected, as far as I've searched, are double SIM.
Second, the Mobile Network Standby (MNS from now on) drain is narrowy connected with the Bluetooth drain (which "also" occurs in Oreo). I've experienced the following: If, after a full charge, I don't switch on Bluetooth at all, then what drains my battery (according to Advanced Battery Usage information) is MNS. However, if I switch bluetooth on -even if only for one minute- then what apparentlyh drains my battery is Bluetooth, at the same speed as MNS did before switching bluetooth on.
Funny enough, the battery use info reports zero minutes activity for both Bluetooth and MNS. But how can a process which runs zero minutes drain 50% of the battery?? I'm afraid that the battery use information isn't reliable. But then that's very bad news, since, in such case, it might well happen that the real juice sucker is neither MNS nor Bluetooth!! We might be dealing with a "ghost" here, since we can't even trust the battery use information provided by the OS.
If someone has something with which to contribute to this research, or any ideas, please comment.
I'm having the same trouble on android 9 betas, even better, my phone gets without signal during those times and there's nothing I could do but rebooting the phone.
How can we help solve this? it looks like it's annoying a lot of people now

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