System_Server (Android OS) High CPU and Lag - Verizon Galaxy Note 4 Q&A, Help & Troubleshooting

Model: Galaxy Note 4
Android: 6.01
Rooted: No
My phone once again is almost impossible to use due to constant lag and slowness. After using one of many apps to identify what was consuming all my CPU I discovered it was the Android OS process and then I drilled down using top command (Elixir 2 app) to identify sub-process system_server. The system_server process was constantly utilizing >40% CPU and when this is coupled with user processes, my CPU was pegged in the 95-100% all the time. This made my phone just about impossible to use.
I encountered this issue approx. 3mo ago and I tried everything to resolve, but ended up doing a factory reset to resolve it. after the same thing a few months ago. Doing a factory reset was the only resolution unfortunately at the time. Now that it the issue has returned, I have tried just about everything to fix it without doing a factory reset, here are some of the trouble-shooting:
Toggled bluetooth on/off
Disabled improve location accuracy options for both BT and WiFi
Removed and re-added my 2 Google accounts
Disabled Google account sync of Gmail, and selective options.
Toggled from Global/GSM to LTE mobile network mode
What did clear the system_server CPU usage issue was putting my phone in Airplane Mode. All this tells me it is radio related....
My phone has been extremely slow and hanging as a result the past three days to a point where it was FRUSTRATING the hell out me, at one point I almost threw it!!! After searching high and low on the web, I couldn't deal with it any long----so I too the plunge and performed another factory reset---which fixed the problem. Since this was the second time in 4 months, I'd like help identifying what is causing this to avoid it in the future.
Thank you in advance everyone!

Bump; 24 views and no replies yet.... I cannot be the only one who experienced this issue. Can we start a dialog on possible causes and fixes other than a full factory reset?
Thank you in advance,

i have the same issue just installed https://forum.xda-developers.com/no...-noble-rom-t3392289/post68300761#post68300761 and system_server consumes ~15% along with zygote ~6%. did you resolve problem?

guruleenyc said:
Model: Galaxy Note 4
Android: 6.01
Rooted: No
My phone once again is almost impossible to use due to constant lag and slowness. After using one of many apps to identify what was consuming all my CPU I discovered it was the Android OS process and then I drilled down using top command (Elixir 2 app) to identify sub-process system_server. The system_server process was constantly utilizing >40% CPU and when this is coupled with user processes, my CPU was pegged in the 95-100% all the time. This made my phone just about impossible to use.
I encountered this issue approx. 3mo ago and I tried everything to resolve, but ended up doing a factory reset to resolve it. after the same thing a few months ago. Doing a factory reset was the only resolution unfortunately at the time. Now that it the issue has returned, I have tried just about everything to fix it without doing a factory reset, here are some of the trouble-shooting:
Toggled bluetooth on/off
Disabled improve location accuracy options for both BT and WiFi
Removed and re-added my 2 Google accounts
Disabled Google account sync of Gmail, and selective options.
Toggled from Global/GSM to LTE mobile network mode
What did clear the system_server CPU usage issue was putting my phone in Airplane Mode. All this tells me it is radio related....
My phone has been extremely slow and hanging as a result the past three days to a point where it was FRUSTRATING the hell out me, at one point I almost threw it!!! After searching high and low on the web, I couldn't deal with it any long----so I too the plunge and performed another factory reset---which fixed the problem. Since this was the second time in 4 months, I'd like help identifying what is causing this to avoid it in the future.
Thank you in advance everyone!
Click to expand...
Click to collapse
I can see why you arrived at that conclusion but I'd caution a second look . I think its your wakelocks bud which is radio connected . until I disabled the lame google one my phone would get ridiculously hot and I mean physically hot as in to the touch turns out my problem was all the damn services the play store is attempting to use. It$ rediculous 1 app has twice almost 3 times as many service request as the rest of the phone . makes me wish play games was Foss compatible so bad I threw in on the bounty for it. But yeah try a wakelock sheriff specifically on play services and its stupid 22 (I think was what mine was) connected services and see if that helps

We are watching you

It looks like removing the screen pattern/password stops bumping system_server +110%, and it runs ≃ 1% CPU and 6% RAM.
Accordingly, CPU frequency is also lower. (1,4GHZ to 1Ghz).

Related

[Q] Battery drain on Note 2 after 4.3 update

Hello
I have had a massive battery drain problem on my Note 2, a couple of days after the 4.3 update. While being idle during the night it loses 25% to 30% of its battery and while using it I can literally see the percentage drop. I have tried everything that I could find on the net. EVERYTHING! Nothing worked. These included: Factory reset (twice), letting the battery frain completely and then recharging it while the phone was switched off, switching off all sync,disabling bloatware including KNOX components (the actual KNOX app is not installed), installing only a few apps after factory reset, using Gsam, Wakelock detector, Deep sleep battery saver (which could not make my phone sleep), no GPS, no 3G, wifi on only when needed and more besides.
The phone is only one year old and unrooted. On 4.1.2 it had a beastly battery performance of almost 1.5 days of normal to heavy use, with 300 apps on it. Now it cannot go for more than a few hours with the same use.
I cannot say for sure but it seems to me that the drain is the same when it is sleeping and when I am using it. Wakelock has given me a 75% awake time even though I only use it for 15-20% of the day at most nowadays. Battery settings show everything normal, or at least I think so, eg Screen 35%, Android OS 15-28%, Voice calls 10%, Android system 5-15%, Cell standby 7%, Device idle 4%, Media server 4%. The batttery chart shows a constant steep drop all the time.
The problem started one day when the Media server went mad consuming 50% of the battery. After I did the factory reset it has never again been a problem but the drain still persists.
I have also read that it's a mess up between syncing of Samsung apps and Google services, but I have no way of verifying that.
Can anyone help?
Thanks
I had the very same problem until yesterday myself but think I found a solution on the web.. Uninstall Google Search and Google Play Services and the goto the Play Store and wait for them to reinstall and that's it....! As I found that there is a bug in Google Services (Nlpwakelock and Location service)
Hope this helps...?
Sent from my GT-N7100 using xda app-developers app
terzisc said:
Hello
I have had a massive battery drain problem on my Note 2, a couple of days after the 4.3 update. While being idle during the night it loses 25% to 30% of its battery and while using it I can literally see the percentage drop. I have tried everything that I could find on the net. EVERYTHING! Nothing worked. These included: Factory reset (twice), letting the battery frain completely and then recharging it while the phone was switched off, switching off all sync,disabling bloatware including KNOX components (the actual KNOX app is not installed), installing only a few apps after factory reset, using Gsam, Wakelock defender, Deep sleep battery saver (which could not make my phone sleep), no GPS, no 3G, wifi on only when needed and more besides.
The phone is only one year old and unrooted. On 4.1.2 it had a beastly battery performance of almost 1.5 days of normal to heavy use, with 300 apps on it. Now it cannot go for more than a few hours with the same use.
I cannot say for sure but it seems to me that the drain is the same when it is sleeping and when I am using it. Wakelock has given me a 75% awake time even though I only use it for 15-20% of the day at most nowadays. Battery settings show everything normal, or at least I think so, eg Screen 35%, Android OS 15-28%, Voice calls 10%, Android system 5-15%, Cell standby 7%, Device idle 4%, Media server 4%. The batttery chart shows a constant steep drop all the time.
The problem started one day when the Media server went mad consuming 50% of the battery. After I did the factory reset it has never again been a problem but the drain still persists.
I have also read that it's a mess up between syncing of Samsung apps and Google services, but I have no way of verifying that.
Can anyone help?
Thanks
Click to expand...
Click to collapse
Download wakelock detector from the play store. It detect which app is waking your device (both screen and cpu) by list.. Then download greenify from the play store and herbinate (greenify) upper most apps from wakelock detector. Hope you can solve your problem
Sent from my GT-N7100 using XDA Premium 4 mobile app
yeminswe said:
Download wakelock detector from the play store. It detect which app is waking your device (both screen and cpu) by list.. Then download greenify from the play store and herbinate (greenify) upper most apps from wakelock detector. Hope you can solve your problem
Sent from my GT-N7100 using XDA Premium 4 mobile app[/
Thanks. I already have Wakelock Detector on. I mistakenly wrote "defender" instead of detector on the original post. It gives me Viber and Messenger as the most active wakelock apps. But they both were not installed when the problem started. Besides, on the 4.1.2 they created no problems. In essence I believe that Wakelock Detector cannot help much. Whatever this problem is , it is well hidden. Thanks for your interest and help anyway. Much appreciated.
Click to expand...
Click to collapse
In wifi settings, goto advanced and untick scanning always available.
Sent from my GT-N7100 using Tapatalk
Manjunath324 said:
In wifi settings, goto advanced and untick scanning always available.
Sent from my GT-N7100 using Tapatalk
Click to expand...
Click to collapse
Thanks, but I have checked and it was not ticked in the first place...unfortunately...
terzisc said:
Thanks, but I have checked and it was not ticked in the first place...unfortunately...
Click to expand...
Click to collapse
Which kernel you are using? And also i recommend using Greenify. Widgets usually eat a lot of battery, I went from battery lasting only 8 hours to get my battery use only 30% in 8 hours.
What i did: installed wakelock detector, gsam battery monitor and better battery stats.
Monitorized the wakelocks.
Applied greenify to the apps which were waking most
Removed widgets which were waking alot
Installed Toggle 2G.
Kernel settings: 200-1600mhz | zzmoove | AFTR+LPA | Multicore power saving (SCHED_MC) = 0 | GPU = stock settings
Works like a charm for me. Hope it helps! Any question, ask!
I've read all sorts of things about this problem since I updated and got hit. I have too much app data to lose by trying the factory restore (which by all accounts shouldn't change anything anyway since you'd still be stuck with 4.3)
I finally decided to try the age old blackberry cure-all: "if in doubt, pull it out" (the battery). Since the entire issue seemed to be related to battery caused problems (ie slow charging, fast drain, etc) it made a lot of sense.
And it worked.
I think the main reason this isn't more commonly tried to fix issues on Android is the same reason I didn't try it earlier. My case is pretty serious and isn't easy to remove. I'm glad I did take the time to take the case off though or I could have ended up wiping my phone.
Nukkels said:
I've read all sorts of things about this problem since I updated and got hit. I have too much app data to lose by trying the factory restore (which by all accounts shouldn't change anything anyway since you'd still be stuck with 4.3)
I finally decided to try the age old blackberry cure-all: "if in doubt, pull it out" (the battery). Since the entire issue seemed to be related to battery caused problems (ie slow charging, fast drain, etc) it made a lot of sense.
And it worked.
I think the main reason this isn't more commonly tried to fix issues on Android is the same reason I didn't try it earlier. My case is pretty serious and isn't easy to remove. I'm glad I did take the time to take the case off though or I could have ended up wiping my phone.
Click to expand...
Click to collapse
Thank you for the suggestion. I have already taken the battery on and off several times. It had no improvement. The phone is only a year old, that is why I don't believe the battery is the culprit. Besides, problems started only after the 4.3 update. Before that it was working perfect. Too much of a coincidence.
Sorry to hear that it didn't work for you
I'm not saying the battery is faulty in any way - however removing the battery and letting the phone power drain completely seems to stop whatever process is running under the buggy 4.3 long enough for it to work again as intended. It's basically just a more thorough way to reboot.
As I said, I've read all sorts of suggestions, many of which don't work for everyone (such as the factory reset) - this is hopefully just one more thing for people to try before they end up wiping their phone in desperation. I mainly posted here in the hopes that others with this issue that may not be forum members can get some more suggestions.
At least for me, wakelock and all the other diagnostic tools at my disposal showed nothing different to before the update. Many other people have found that the Android System is using a lot more of their battery than normal or some other apps are involved - if this is the case, it's likely to be a combination of things causing the issue (the firmware, the drivers, apps, hidden Samsung processes, etc).
Also, for what it's worth, I found that Knox supposedly wasn't installed (when I find it in the apps list, the button to install it is showing...). But it's showing in the list of apps so it must already be installed. I dug through the list of running processes (had to show the system processes too) and I discovered that several Knox and some other new Samsung processes were indeed running.
One other quick tip - If you wanted to check/tweak the 'developer options' and can't seem to find it any more, that's because it's now hidden since 4.2 - go to 'About Device' and tap 7 times on the Build Number. I tried disabling all background processes however it seems this only disables application level processes, not system level processes but if you've tried everything else, it can't hurt to try playing around with some of the options in there.
Nukkels said:
Sorry to hear that it didn't work for you
I'm not saying the battery is faulty in any way - however removing the battery and letting the phone power drain completely seems to stop whatever process is running under the buggy 4.3 long enough for it to work again as intended. It's basically just a more thorough way to reboot.
As I said, I've read all sorts of suggestions, many of which don't work for everyone (such as the factory reset) - this is hopefully just one more thing for people to try before they end up wiping their phone in desperation. I mainly posted here in the hopes that others with this issue that may not be forum members can get some more suggestions.
At least for me, wakelock and all the other diagnostic tools at my disposal showed nothing different to before the update. Many other people have found that the Android System is using a lot more of their battery than normal or some other apps are involved - if this is the case, it's likely to be a combination of things causing the issue (the firmware, the drivers, apps, hidden Samsung processes, etc).
Also, for what it's worth, I found that Knox supposedly wasn't installed (when I find it in the apps list, the button to install it is showing...). But it's showing in the list of apps so it must already be installed. I dug through the list of running processes (had to show the system processes too) and I discovered that several Knox and some other new Samsung processes were indeed running.
One other quick tip - If you wanted to check/tweak the 'developer options' and can't seem to find it any more, that's because it's now hidden since 4.2 - go to 'About Device' and tap 7 times on the Build Number. I tried disabling all background processes however it seems this only disables application level processes, not system level processes but if you've tried everything else, it can't hurt to try playing around with some of the options in there.[/Q
Thanks mate
I think you are right. It is probably a combination of many things. I have opened the Developer options some time back. The one thing that I do for sure in there is limit background processes to 4. Besides that I don't experiment much, exept maybe to change transition animation scale. I am actually thinking of rooting the phone and downgrading to 4.1.2. It was just fine before. I can live without the 4.3 add ons.
Click to expand...
Click to collapse
Problem still persists, even with Google+ and most other Google applications disabled

			
				
Sent from my GT-N7100 using xda app-developers app Some screenshots taken from 3 different apps. Wakelock detector, Better battery stats and Gsam battery monitor
Sent from my GT-N7100 using xda app-developers app
The only battery apps on my phone are the 3 mentioned above, so I don't know what the battery monitor that keeps my phone awake is. The drain existed before I installed these apps. I have read that Chrome could prevent the phone from going to sleep but it is disabled on my phone.
Sent from my GT-N7100 using xda app-developers app
http://www.youtube.com/watch?v=ak1sYWRaEKg
I faced same battery drainage issue, after installing wanam kernel and freezing all bloatwares through Titanium Backup. I'm satisfied with my battery now.
You can try.
Sent from my GT-N7100 using XDA Premium 4 mobile app
Here is detail-
Disable sync always, enable when needed.
Disable wifi always scan from settings
Display set to auto
Uninstall apps of playstore you rarely use
Use widgets on lock and homescreen as less as you can (I don't use any)
Disable motion on settings
Freeze all bloatwares by TB except allshare and samsung content agent
Install Agni kernel, from agni control app-
profile: normal
Governor: pegasusq
Scheduler: cfq
Don't touch other tweaks, hardly you can tweak sound boost.
THIS GIVES ME A SATISFIED BATTERY STATUS.
regards.
Sent from my GT-N7100 using XDA Premium 4 mobile app
Wew 4.3 does have may bugs

After 4.4.3 (Problems/Features)

Let us know what your have found after the update. Good and bad.
Since the update my WiFi has dropped out on my home network twice. Have to restart or turn airplane mode on/off.
Also I don't think the battery has improved any....
Terra1 said:
Let us know what your have found after the update. Good and bad.
Since the update my WiFi has dropped out on my home network twice. Have to restart or turn airplane mode on/off.
Also I don't think the battery has improved any....
Click to expand...
Click to collapse
I just noticed a bit longer restart times. Thats it !:cyclops:
I've noticed darker video recording in low light l...
After the update, at the settings / power the scrolling is laggy. This module was updated, something is just not right at my device. I did a factory reset, no avail. It's lagging only over here, pretty annoying...
vistvan83 said:
After the update, at the settings / power the scrolling is laggy. This module was updated, something is just not right at my device. I did a factory reset, no avail. It's lagging only over here, pretty annoying...
Click to expand...
Click to collapse
Yeah, its true. It slipped my mind. Probably this particular portion of the software was developed at the last moment, and they didn't have enough time to test it thoroughly
I have narrowed my wifi drop outs to the beyond pod app.
My camera won't focus after updating. I had the problem prior, but did the alcohol microfiber run to get the coating off and it was working great. After I updated the camera now seems like it won't focus, only objects within 5 inches are in focus. I did a factory reset and made sure that the camera wasn't set to macro mode. Nothing is working to fix this problem. I think my camera might just be broken now.
Sent from my HTC One_M8 using XDA Free mobile app
Now after a few days i think that the battery cannot hold on so long as with 4.4.2. Previously i could run it two days with moderate use, now the battery level drops to 20% after 24 hours.
At the update the battery was not fully charged. Is this behavior normal after the update, did i make a mistake, or does anybody else have the same problem?
I'm on 19% after 13 hours. WTF is going on? I cannot see any suspicious app causing this. Can i revert to 4.4.2? LOL...
vistvan83 said:
Now after a few days i think that the battery cannot hold on so long as with 4.4.2. Previously i could run it two days with moderate use, now the battery level drops to 20% after 24 hours.
At the update the battery was not fully charged. Is this behavior normal after the update, did i make a mistake, or does anybody else have the same problem?
I'm on 19% after 13 hours. WTF is going on? I cannot see any suspicious app causing this. Can i revert to 4.4.2? LOL...
Click to expand...
Click to collapse
I have (or had) the same problem as you with the new update. Try clearing the cache partition (that's what I've been told). I'm still keeping my eye on the battery to see if it's fixed. The problem for me was that Android Kernel and Android System was using too much battery.
Here are some screenshots:
https://drive.google.com/file/d/0BzywJDML-7JkTkJwOV9mQk5ucG8/edit?usp=sharing
https://drive.google.com/file/d/0BzywJDML-7JkTlc3ODYzcUotQlE/edit?usp=sharing
These battery results are pretty bad compared to what I was getting prior to 4.4.3 (i got 2d5h once with 4h on screen and 7 hours awake).
Hi! I think i was able to fix it, the issue appeared on other devices which received 4.4.3. I cleared the cache for Google Play Store and for GP Services. Now i'm at 50% after 20 hours.
vistvan83 said:
Hi! I think i was able to fix it, the issue appeared on other devices which received 4.4.3. I cleared the cache for Google Play Store and for GP Services. Now i'm at 50% after 20 hours.
Click to expand...
Click to collapse
just tried that and hoping it works. I've tried turning off fast boot but having the same issues others are reporting also.
here is a post from another user:
Hi, everyone, this is my first time here, so bear with me. On Wednesday, August 28, I downloaded the new Kit Kat 4.4.3 update from AT&T onto my One M8. Right after and for a few hours after, everything was in great condition as always. I've had my M8 since launch and haven't had a problem since and hold it very dear to me. Then, after about four hours, I noticed the phone was getting hot, really hot. I had power saver on as always and I saw that the CPU was taxed at 97%, just having Instagram running and YouTube actively showing a video. So I restarted the phone, clearing the cache and making sure that nothing was working too hard. That's when the problems really started coming up. It was getting hot but I ignored it and went to the Play Store to update my banking app and download Reddit News. After seven minutes of a normally one minute (if that) update, I stopped the download, cleared the cache and tried again. Nothing. So Google Play won't download, update, or install apps, Google, or third-party. That's not all. Hangouts will not send messages. Even in full LTE connectivity and 5 GHz Wifi AC, message could not send both to Android users (one used messages, the other Hangouts) and to an iPhone. It was like deja vu with my old iPhone 4S. BUT THAT'S NOT ALL. YouTube was giving me hell, too. When I would type into the search bar to search for a video, the search bar would clear. For example, if I'm looking up and type into the search bar on YouTube "Linus Tech Tips," then it'll work. But if after that I backspace or "x" out "Linus Tech Tips," and type something else, say, "Build a Gaming PC," If I use Swype (Swiftkey, Google Keyboard, or HTC Sense), the first word shows up, but as I'm typing, the subsequent words are erased and "Linus Tech Tips" shows up in the search bar (check him out if you don't already). This is EXTREMELY frustrating and now I can't watch The Joy of Painting. Damn. Finally, the CPU and heat I mentioned before is crazy. The CPU is always between 79% and 99% at all times. the RAM is usually at about 75% as normal, but the CPU is running nuclear hot. It's going to 105-115 degrees Fahrenheit. This worries me, all of this, because I wonder if this is the fault of the new 4.4.3 update for the AT&T M8 model or maybe underlying causes. I've had Malwarebytes scan my phone and find nothing. That caches are cleared and nothing seems to work. If anyone can help I would be extremely grateful because my only option in my mind is to do a hard factory reset of the device. Thanks to anoye who can help, and if not, then, oh well. Thanks, and sorry I made an essay out of this, this is really a big problem for me.
another user just posted:
Well, I think that the factory reset fixed it. It's been over an hour now, and the phone isn't overheating anymore. Battery life has only dropped 2% in that hour instead of the 2% every five minutes after the update.
After the 4.4.3 update the camera's manual mode doesnt change the exposure the same way as it did in 4.4.2 so i cant see the pics in the viewfinder at night before i actually take the pic and look at it, and that really sucks.

Lg G3 Massive Battery Drain from bam_dmux_wakelock (Pics Included)

Alright everyone,
Some details about my phone before we begin-
I am a moderate user. I play some games, check emails, text and that's about it.
My phone is NOT rooted and obviously I am not running a custom rom, or a alternate launcher, and I haven't really modified many if at all any settings.
So, that being said I am experience some sever kernel wake lock issues form bam_dmux_wakelock for the past week or so. As you see in my picture, 6 out of my 7 hours of up time (off charger) has been kept from deep sleep, therefore destroying my battery time.
Today I have maybe 30-40 minutes total of screen on time, but not nearly the 6 hours of non deep sleep time.
I've turned off "okay google" detection, disabled wifi when screen is off, restricted background data for youtube, disabled google + (I don't use social media) and my brightness is on auto mode, typically around 35% when the screen is on.
If google can see this I would like to offer them a huge F you for changing the permission architecture so that gplay apps cant detected whats causing the wake-lock without root. They are pretty much forcing us to root our phones to access features locked meanwhile continuing to call android "Open Source"
Can anyone give me a recommendation on what are my options? Or should I really just root my phone, which I don't want to do (I have in the past but I haven't needed too with the G3 since it has everything I want without root)
I don't think it's Google's fault if LG makes a sucks kernel. Anyway, bam_dmux seems to be related to radios. Could it be that during those wake locks you were in an area where there is weak signal? Are you still experiencing this error after a reboot of the phone?
keithleyson said:
I don't think it's Google's fault if LG makes a sucks kernel. Anyway, bam_dmux seems to be related to radios. Could it be that during those wake locks you were in an area where there is weak signal? Are you still experiencing this error after a reboot of the phone?
Click to expand...
Click to collapse
I've reset the phone multiple times, and have also cleared the cache from the bootloader as well. I don't have a weak signal in my area; also the radio interface is a separate wake lock code from bam_dmux. From what I read bam_dmux has to do with google background services.
Bump
JetForceF22 said:
I've reset the phone multiple times, and have also cleared the cache from the bootloader as well. I don't have a weak signal in my area; also the radio interface is a separate wake lock code from bam_dmux. From what I read bam_dmux has to do with google background services.
Click to expand...
Click to collapse
Google location service may be running in the background to much too long.
gee2012 said:
Google location service may be running in the background to much too long.
Click to expand...
Click to collapse
I don't see a google location service only the Verizon Location Agent; there are two other services called "LocationServices" under All in my application manager, and they are both listed at being 0.00 bytes in size (?) I force stopped those anyways along with the verizon location agent which restarted anyways. I also have location completely off in my quick menu from the pull down bar, I only turn it on when I'm using GPS.

Battery/Lag issues since replacement & 6.0 update (AT&T)

After my original phone went into bootloops after the marshmallow update, I got a replacement within 1 day (thanks, AT&T, they really surprised me with customer service on this one). Unfortunately, my replacement has been full of issues. For starters, I used to get maybe 1% per hour max battery drain with idle and screen off with location and sync on (would be 97-99% in the morning if it was 100% before sleep), but now it is 5+% per hour, same battery as before, even switching it with my spare, no difference. I have Greenify installed and have a decent number of things greenified, but I don't want to have to also turn off location and sync just to get still worse battery life than I had before. A factory reset did not fix the issue. Google Play Services seems to inexplicably be taking more battery than phone idle now but it is not enough to be explaining this battery issue fully.
Also, I get lag in various applications, including pre-installed system applications. Most noticeably, Chrome and Chrome Beta have the same issue of freezing 3-10 seconds before the page is completely loaded which is an extreme nuisance. Reinstalling the apps and clearing the cache/data did not help. Various system applications run with lag too. I moved some applications to the SD card and the settings app was lagging so terribly it crashed a few times.
Any ideas to my phone woes?

Battery drain

Hello.
I've bought a G4 in March and only 20 days ago I've started to notice a odd and big battery drain. Android tells me it's "Android SO" consumption. What once drained like up to 5%, now drains more than screen. 20 days ago, battery lasted like 34h. With same usage now, turned 12h.
I've uninstalled the apps I've installed meanwhile, used it in battery eco mode and even on airplane mode, without any luck.
4-5 days ago I've installed Wake Lock Detector (no root, but with the right permissions) and Better Battery Stats. From what I understand from the reports, they don't blame any specific app but show thousands of wakelocks on Android SO. I believe sometimes it can be normal (for instance, when I run with GPS and music). Anyway, maybe the issue lies here.
What I find really odd is that those 2 apps say that the phone is awake more than 90% of the time. Like 1h of deep sleep only per full battery.
I could understand if someone says that it's the battery that had a great use already, but not only has 7 months of use, but also the phone behaviour changed (Android SO was never so high before, at least constantly).
Thanks in advance for any advice!
JoaoAfonso said:
Hello.
I've bought a G4 in March and only 20 days ago I've started to notice a odd and big battery drain. Android tells me it's "Android SO" consumption. What once drained like up to 5%, now drains more than screen. 20 days ago, battery lasted like 34h. With same usage now, turned 12h.
I've uninstalled the apps I've installed meanwhile, used it in battery eco mode and even on airplane mode, without any luck.
4-5 days ago I've installed Wake Lock Detector (no root, but with the right permissions) and Better Battery Stats. From what I understand from the reports, they don't blame any specific app but show thousands of wakelocks on Android SO. I believe sometimes it can be normal (for instance, when I run with GPS and music). Anyway, maybe the issue lies here.
What I find really odd is that those 2 apps say that the phone is awake more than 90% of the time. Like 1h of deep sleep only per full battery.
I could understand if someone says that it's the battery that had a great use already, but not only has 7 months of use, but also the phone behaviour changed (Android SO was never so high before, at least constantly).
Thanks in advance for any advice!
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Suggest you check out and install the apps recommended apps on ✭[GUIDE][26-07-2016]Extreme Battery Life Thread(Greenify+Amplify+Power Nap)✭ at https://forum.xda-developers.com/android/general/guide-extreme-battery-life-t3095884
Read the OP thoroughly for each app discussed. The wakelock situation can be helped a good deal with Amplify and Greenify in particular - the paid versions - but I would also install AppOppsXposed - all require Xposed which requires root in order to be installed and I would also check out Power Nap to see if any incremental improvement.
You may a also want to run a malware scan ...
Thanks for the info. I checked it earlier, but most of those apps only run in root phones. I'm waiting for official Nougat in G4, mostly because haven't saw yet a Nougat image for this device without any problems, like camera not working, or such. I wouldn't mind to pay for apps that could work on this, but I want to avoid rooting. I guess I rather put Android 7, that has a bigger chance to even solve this problem, than root at this time.
Haven't said earlier but did a factory reset yesterday and device kept the behavior... I believe a hard reset would reduce almost to 0 the eventual malware problem.
No obvious alternatives for not rooted phones? Haven't this happened to someone else and been solved?
Thanks!
I had the same problem a few weeks ago...i was loosing ~30% of the battery at night with no wifi/data/gps etc. I tried everything...factory resets, different roms, greenfy & those kind of apps but the phone would not sleep. The last thing i tried was a factory reset and after i logged into my gmail account i set the phone as a new device...so no restoring apps and backups from my gmail account. Now everything is ok, my phone sleeps like a baby. I've read somewhere that it might be related with the syncing & backups....i don't really know, but you can give it a try.
uzadragos said:
I had the same problem a few weeks ago...i was loosing ~30% of the battery at night with no wifi/data/gps etc. I tried everything...factory resets, different roms, greenfy & those kind of apps but the phone would not sleep. The last thing i tried was a factory reset and after i logged into my gmail account i set the phone as a new device...so no restoring apps and backups from my gmail account. Now everything is ok, my phone sleeps like a baby. I've read somewhere that it might be related with the syncing & backups....i don't really know, but you can give it a try.
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Haven't tried that yet. I'll try to remove and add the device again, to avoid the pain of a new hard reset.
To have a reference, it was good to know an average percentage of other G4 deep sleep. If everyone has around 90%... maybe it's not a problem at all. The "sleep like a baby" is which percentage? Also, there are plenty babies that wake up hourly crying for a period of time...
Thanks for the tip!
JoaoAfonso said:
Haven't tried that yet. I'll try to remove and add the device again, to avoid the pain of a new hard reset.
To have a reference, it was good to know an average percentage of other G4 deep sleep. If everyone has around 90%... maybe it's not a problem at all. The "sleep like a baby" is which percentage? Also, there are plenty babies that wake up hourly crying for a period of time...
Thanks for the tip!
Click to expand...
Click to collapse
My phone was awake >90% of the time(when screen was off), even in flight mode, when it had "the problem". Now things are back to normal...~2% awake when the screen is off.
Hello again.
Tried to reset a couple more times, tried to remove old phone register in my gmail account, but I wasnt successful.
How you did the
"The last thing i tried was a factory reset and after i logged into my gmail account i set the phone as a new device..."
?
Once it asks for my account, I'm not able to set it's a new device. I also did no restores... Is there a way to disconnect devices from Google account? I was only able to do so in devices I connected like one month, or more, ago, but not able to do so in the device I'm using at the moment.
One thing I did not try but that would confirm your thesis is to register device with a new account.
Anyone with an alternative?
I'm hoping LG really releases Nougat for G4 in 2017...
Today, the device returned to normality without any intervention. I can only imagine the following: since last factory reset I've disabled some apps I didn't used, like Google books, or Google music, but only yesterday I did a normal reboot (due to huge battery drain...). Eventually, some updates just took place after this reset. Anyway, even having imagined this theory, I don't believe in it. Wizardry, I bet.

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