Faulty Battery or Software Issue? - Samsung Galaxy S7 Questions and Answers

Hi folks,
I scoured through all the battery related discussions and wasn't able to find an issue similar to mine, so I hope it's okay to post a new thread on this topic. I have an AT&T (Snapdragon) Galaxy S7 with stock software and about a month and a half ago I started experiencing horrible battery life. I have been desperately trying to figure out what the issue is. At first I thought it was AT&T WiFi calling because it was forcing my WiFi and data connections to toggle back and forth and disabling that did help. However my battery life was still poor and I could never get more than about 10.5 hours of moderate use (see pictures below). Also the phone gets hot randomly (Above 95 Fahrenheit) even when doing minor tasks like browsing through Chrome. Since then I have made the following changes with no noticeable improvement:
Disabled advanced LTE services
Disabled Always on Display
Disabled WiFi and Bluetooth location scanning
Disabled nearby device scanning
Wiped cache multiple times
Temporarily disabled Bluetooth and WiFi to monitor the difference
Used Greenify Aggressive Dose
Disabled all diagnostic reporting
Uninstalled Oculus when that battery issue came up
Side note: I disabled a bunch of bloatware right when I got the phone, not through Package Disabler but through the standard Android disable method
I kept digging and found that my phone doesn't enter dose unless I use Greenify, and even then I don't notice a difference. I then decided to do a hard reset but no luck. Afterwards I used Safe Mode to see if any 3rd party apps were misbehaving, but again the drain was consistent both while idle and while using the phone. Today I installed Wakelock Detector Lite and found that PowerManagerService is keeping my phone from dosing, but from what I've read online it seems that info doesn't really point to a specific app, and it's hard to identify unless I root the phone which I don't want to do.
I am going crazy trying to figure out if this is a software/settings issue or if I should just replace the phone through AT&T and risk getting a defective refurb. Any help would be much appreciated.
Battery stats:
View attachment 3901345
View attachment 3901344
Wakelock Stats (taken on a different day):
View attachment 3901349

Many people have similar problems. One reason was the buggy oculus app (you might wanna disable that when it came pre installed, depending on your CSC).
However the main reason behind the high "android-system" usage is still unclear. Some people experience it, some dont. Some people have better battery results with the firmware from March.
Personally, I believe that it is firmware related. I tried the N7 rom port and did not have a problem at all.
You might wanna wait for the October update that will hit soon and see if this fixes anything.

I notice you have 'media server' showing in your battery stats. My wife had that showing too and also had terrible battery life. Her fix was disabling the auto streaming in her Facebook app which plays videos while you scroll through posts. Now she has great battery life!

I have the Facebook app disabled on my phone altogether. I've also used safe mode where 3rd party apps are disabled but the battery still drains at around 5% an hour while idle.

WiFi calling was draining one members battery, disabled that and everything returned to normal

*Detection* said:
WiFi calling was draining one members battery, disabled that and everything returned to normal
Click to expand...
Click to collapse
How?

iamnotkurtcobain said:
How?
Click to expand...
Click to collapse
https://www.verizonwireless.com/support/knowledge-base-203686/

I had that issue too but have since disabled WiFi calling

most likely a software issue. my version is G930FXXU1APEQ and i'm been getting 11 hour on batty with around 6- 7 hour of screen on.

Try disabling Google backup. It's a huge battery drainer
Sent from my SM-G930FD using Taptalk

Try manually updating Google play services for the lastest ver sion.

Hi,
Have the same Problem with my Galaxy S7.....Last Week, become an Little Update */- 20,8 MB
Now I have strong Accu consumption. ( Sorry Speake German
Test with Galaxy Note Edge, and Galaxy S7 .....both Smartphones have an 3000 m/Ah Accu. On Galaxy Edge have 178 own apps installed,
The Galaxy S7 - 3 Times Reset with Wipe Factory Reset and Wipe Cache, and from the Phone Settings.
https://www.dropbox.com/s/d7pvlnccr6y5dgc/Screenshot_2016-10-06-10-48-32%20NOTE%20EDGE.png?dl=0
https://www.dropbox.com/s/lile2f0uuitr3ol/Screenshot_2016-10-06-11-16-44%20NOTE%20EDGE.png?dl=0
https://www.dropbox.com/s/175imcgv3n9bugi/Screenshot_20161006-094012%20GALAXY%20S7.png?dl=0
https://www.dropbox.com/s/5rvkgubj95orhrn/Screenshot_20161006-094037%20GALAXY%20S7.png?dl=0

Nothing has helped so far so I decided to uninstall my apps in batches until battery life improves. I'll then slowly reinstall them one by one until I find the culprit. I'll report back with my findings. Thanks for all the suggestions.

Related

[Q] Google Services/Google Play Services running constantly

I've looked around a bunch and it seems like a lot of people are having a problem with terrible battery drain after the last two android updates. I'm on Verizon, unrooted, stock GS3. Ever since the update to 4.4 I've been hit with Google Services or Google Play Services running non-stop. My phone battery will discharge from 100% to critical in less the 4 hours without any use. The usual tricks of killing the process, restarting the phone and factory resetting have not worked. This has gotten ridiculous. Has anyone come up with any way to fix the sticking processes? Any kind of update at all? I'm extremely frustrated. I've had this phone for 2 years with no battery drain problems. Then I took the first 4.4 update and I started getting problems. Now with the newest update its much worse. Nothing will stop Google Services from running constantly. I can't wait to get an upgrade at this point.
bbuck002 said:
I've looked around a bunch and it seems like a lot of people are having a problem with terrible battery drain after the last two android updates. I'm on Verizon, unrooted, stock GS3. Ever since the update to 4.4 I've been hit with Google Services or Google Play Services running non-stop. My phone battery will discharge from 100% to critical in less the 4 hours without any use. The usual tricks of killing the process, restarting the phone and factory resetting have not worked. This has gotten ridiculous. Has anyone come up with any way to fix the sticking processes? Any kind of update at all? I'm extremely frustrated. I've had this phone for 2 years with no battery drain problems. Then I took the first 4.4 update and I started getting problems. Now with the newest update its much worse. Nothing will stop Google Services from running constantly. I can't wait to get an upgrade at this point.
Click to expand...
Click to collapse
From what I've read on not just here, but for other phones...the usual culprit is location services via google now. The best way to test this is to turn off google now (which will just give you the standard pre jb google search) and see if that calms things down. If you want google now...try turning off location reporting in google''s location settings. Additionally, turn off syncing to things under the google account that you don't necessary need to sync constantly.
dvschnk said:
From what I've read on not just here, but for other phones...the usual culprit is location services via google now. The best way to test this is to turn off google now (which will just give you the standard pre jb google search) and see if that calms things down. If you want google now...try turning off location reporting in google''s location settings. Additionally, turn off syncing to things under the google account that you don't necessary need to sync constantly.
Click to expand...
Click to collapse
I kept reading more forum posts yesterday, and I am fairly confident that I found the correct answer for my phone. I've never had a problem before with the location services draining my battery. The culprit is the "OK Google" voice detection constantly listening. Ever since I turned that off, my battery usage has returned to normal. Immediately I noticed a difference in the phone's performance and the battery percentage didn't drain while I was watching it. This makes sense too with the timing of the update and my battery drain. KitKat brought this feature to the GS3 and that is precisely when my battery started to be sucked dry. Whereas before, Google services was listed as 40-60% of my battery usage, it's now down to 15%. The good thing with turning this off is I never used the feature, unlike location services that are baked into everything and actually useful to me. Thanks for the help.

[Q] "Android OS" hughe battery drain

Hi everyone,
These days the battery consumption of "Android OS" process has been quite high. Last days it has been around 30-40%, but today, it reaches the awesome figures of 70%.
I have francokernel-r32 (last one) which everyone reports it's a battery friendly kernel. Obviously I notice no difference between francokernel and stock because of the Android OS battery drain. Also I have the CM11s-R44 stock.
Other little details: I use Greenify, cleanmaster and Amplify to save battery and system resources. Localization is fully turned off (I don't need it) and using 2G and WiFi networks (I use 3G just for few minutes/seconds to download or surf the web).
The xposed modules I have installed: amplify, bootmanager, complete action plus, greenify, whatsapp quiet hours and youtube adaway. I think none of these can be suspicious of battery drain.
Any suggest? I have no idea on facing this problem...
Thanks so much :good:
Edit: pictures are in spanish, but I think it's easily understandable (just the figures of Android OS process say everything).
Firstly, you say 'also I have CM11S-r44 stock', but you're not stock if you have Franco installed. Anyway, it could be Google Play Services that's causing the problems, have you tried this?
http://forum.xda-developers.com/showthread.php?t=2832525
Transmitted via Bacon
have you read the thread on r32 its been giving people some issues. May I suggest r31 and as previously mentioned are you running Google Now. I mean the the drain you see could be warranted. Also what the Keep Awake showing you? How bad is that
playya said:
have you read the thread on r32 its been giving people some issues. May I suggest r31 and as previously mentioned are you running Google Now. I mean the the drain you see could be warranted. Also what the Keep Awake showing you? How bad is that
Click to expand...
Click to collapse
I'm going to piggy back off this thread. Android OS and Android System are killing my battery as well. I've turned off the Google Location Services keep awake and wake up (etc...as per Timmaa's thread), and I'm still getting a very large keep awake from Android System. Please see the attached screenshot.
Nothing else has been edited. I'm on 44R stock rooted.
napes22 said:
I'm going to piggy back off this thread. Android OS and Android System are killing my battery as well. I've turned off the Google Location Services keep awake and wake up (etc...as per Timmaa's thread), and I'm still getting a very large keep awake from Android System. Please see the attached screenshot.
Nothing else has been edited. I'm on 44R stock rooted.
Click to expand...
Click to collapse
Is this drain only when connected to wifi?
codiak said:
Is this drain only when connected to wifi?
Click to expand...
Click to collapse
I'm not really sure actually. I'm connected to WIFI around 80% of a given day so my guess would be yes.
Do you know of something that could be causing the drain, or is that just what happens when you're connected to WIFI?
napes22 said:
I'm not really sure actually. I'm connected to WIFI around 80% of a given day so my guess would be yes.
Do you know of something that could be causing the drain, or is that just what happens when you're connected to WIFI?
Click to expand...
Click to collapse
I have this issue from time to time when connected to my home Wifi. You could try by turning off Wifi for some time.
Rebooting the Wifi AP or changeing channel helps for me in that case.
Is it a hidden network?
Nope it'd a public password protected network.

Very Slow/Inconsistent Notifications

Hi, so the simplest way of stating my problem is when my device is either unlocked (AKA browsing apps and whatnot with the screen on), or locked (sleeping), notifications are slow to arrive. Right now I've been testing with Skype, and Gmail, both of which are inconsistent. My OPO does not currently have a SIM card (haven't setup the plan yet), and I've tried with both LTE and Radio off (using *#*#4636#*#* on the phone info page)
Info about my OPO/Setup:
Flashed CyanogenMod 12.1 as stated in the Sultan thread before flashing Sultanxda Rom
Using Sultanxda Unofficial CyanogenMod 12.1 Sep 14, 2015 (http://forum.xda-developers.com/one...m-kernel-unofficial-cyanogenmod-12-1-t3120259)
Using AK v.020 CAF Kernel (http://forum.xda-developers.com/oneplus-one/orig-development/kernel-ak-t3189886)
Using StyloKing v1 Synapse profile for CAF (http://forum.xda-developers.com/one...ad-oneplus-t3163211/post62600798#post62600798)
Using build.prop mods (http://forum.xda-developers.com/oneplus-one/general/build-prop-tweaks-device-t3168207)
Using TK Gapps Pico (http://forum.xda-developers.com/android/software/tk-gapps-t3116347)
Using Oxygen OS Modem ONLY (http://forum.xda-developers.com/one...dio-updated-modem-radio-files-oxygen-t3072516)
Using Xposed for Lolipop (http://forum.xda-developers.com/showthread.php?t=3034811)
Using Greenify and Amplify with settings from both of these threads (http://forum.xda-developers.com/android/general/guide-0-0-hour-idle-battery-drain-stock-t2973588 & http://forum.xda-developers.com/android/general/guide-extreme-battery-life-t3095884)
My OPO does not currently have a SIM card (haven't setup the plan yet)
Things I've tried:
With both LTE and Radio off (using *#*#4636#*#* on the phone info page)
Older Skype versions
Push Notification Fixer (https://play.google.com/store/apps/details?id=com.andqlimax.pushfixer&hl=en)
Disabling Amplify by disabling the module in Xposed, and rebooting
Double checked that Greenify isn't touching Skype or anything related
I also have a Samsung Galaxy S3 that is using the stock ROM (Android 4.1.2) with root permission and a custom recovery. That is the device I've been using to test with. If I send a Skype or Gmail message from my OPO to the Galaxy, it takes 2-3 seconds EVERY TIME consistently.
If I send a Skype or Gmail message from the Galaxy to the OPO, sometimes I'll get the message within 3-5 seconds, other times it takes 1 minute+ and even a few messages don't arrive until I unlock the device and open Skype or Gmail.
When I leave Skype open, and lock my OPO, it seems to get the messages very quickly almost every time.
Also, it appears that when my phone sleeps for a certain period of time, seems inconsistent, the WiFi will disconnect - and I DO have keep WiFi on while phone is sleeping.
I've run out of ideas short of trying a full wipe and different rom/kernel/who knows what at this point...=\
Any/all help is greatly appreciated. Thanks.
Edit/Update: Found this post (http://forum.cyanogenmod.org/topic/107023-cm12121-wifi-connectivity-issuesdrops-workaround-included/) on another forum, and that seems to have fixed it for me. Doing further testing, but so far positive results.
The delayed response is most probablye due to the Greenify/Amplify tweaks that you've made. Remove everything related to Gmail, Skype, Google Play Services from Greenify & Amplify and then test. Add back the tweaks one by one and find the culprit.
I've already tried that. Fully disabling Amplify, and double checking that I've touched nothing close to Skype or Gmail or Google Services in Greenify's settings.
As I put in the edit in my first post, I found out going to /system/etc/wifi/WCNSS_qcom_cfg.ini and changing the line
Code:
McastBcastFilter=3
to
Code:
McastBcastFilter=0
appears to have solved the issue for me.
But when I did that, I also noticed something else, and I wish I hadn't unplugged my device (AKA wiping battery data so I could show a clear screenshot of what I mean), because I saw when I was looking at the battery usage chart, all day long while I had McastBcastFilter=3, my WiFi signal was turning on and off CONSTANTLY throughout the day, and sometimes for decently long periods. Now that I've changed McastBcastFilter=0, my WiFi signal shows that it's on 24/7 in my battery screen.
I'm worried that this is going to cost me a fair bit more battery, but at the same time I need my notifications.
I found another setting in that file with this comment:
Code:
# Enable suspend or not
# 1: Enable standby, 2: Enable Deep sleep, 3: Enable Mcast/Bcast Filter
gEnableSuspend=3
Before I made any changes to this file, it was set to 3, which makes sense with the McastBcastFilter changes I made. But attempting to get some more battery life so my WiFi goes into some sort of partial power save mode for battery longevity, I'm going to try my OPO with Enable Deep Sleep on all day. We'll see how the battery fairs and if notifications are still delayed or not.
Edit: I was able to get the data from my secondary battery app so screenshots for all!
This is what my Wifi/Battery was like before I changed McastBcastFilter at all:
Code:
imgur.com/ZXmFYhI
This is after I changed it from 3 to 0:
Code:
imgur.com/H5ZlXc2
And this is what it's been like since I rebooted last night with gEnableSuspend=2 (AKA Deep Sleep):
Code:
imgur.com/2O6GuVE
Obviously when the WiFi is off, I'm not getting my notifications. >=\
(Gave the URLs CODE tags so I could link the images...)
Well so far I haven't seem to have come across any issues with leaving BcastMcast at 0 and using Deep Sleep for WiFi. I'm still getting all my notifications, and as far as I can tell the battery life is give or take about the same. Possibly a little more battery drain than with BcastMcast on, but I haven't done any sleep tests yet, just initial observations with using OPO in a daily setting.

Embarassing battery drain after using GPS

Hi,
I'm Fabio and I have an annoying problem.
I have:
- N5 fully stock (bootloader locked and not root) with M 6.0.1 updated to last patch (February 2016)
- few apps (for example, I used Facebook in browser)
With a normal use of Facebook, Instagram, Twitter, Whatsapp, mail, etc...I have a good battery response: over 2 hours of screen and during night, with only data disabled, batteria drops of 1/2%. In general, in standby, the consumption is near to zero...
...until I activate GPS: from this moment, even if disable it, there is an embarassing battery drain (1% in an hour). At the end of battery, before charge it, screen and apps are near to 4/5%.
The only temporary workaround is to reboot, because the problem reappears when I enable GPS.
I have tried all "solutions" proposed into forum:
- reinstallazione factory
- wipe
- GPS in device only
- disabled location history
- etc...
but the problem persists.
Any ideas?
Thanks.
Fabio
il_fabio said:
Hi,
I'm Fabio and I have an annoying problem.
I have:
- N5 fully stock (bootloader locked and not root) with M 6.0.1 updated to last patch (February 2016)
- few apps (for example, I used Facebook in browser)
With a normal use of Facebook, Instagram, Twitter, Whatsapp, mail, etc...I have a good battery response: over 2 hours of screen and during night, with only data disabled, batteria drops of 1/2%. In general, in standby, the consumption is near to zero...
...until I activate GPS: from this moment, even if disable it, there is an embarassing battery drain (1% in an hour). At the end of battery, before charge it, screen and apps are near to 4/5%.
The only temporary workaround is to reboot, because the problem reappears when I enable GPS.
I have tried all "solutions" proposed into forum:
- reinstallazione factory
- wipe
- GPS in device only
- disabled location history
- etc...
but the problem persists.
Any ideas?
Thanks.
Fabio
Click to expand...
Click to collapse
see workaround from here http://forum.xda-developers.com/google-nexus-5/general/guys-call-wifi-battery-drain-6-0-t3219870
and use it evey time after you turn off GPS or don't give permission to scan in background when you open Map after tuning off scan.
jineshpatel30 said:
see workaround from here http://forum.xda-developers.com/google-nexus-5/general/guys-call-wifi-battery-drain-6-0-t3219870
and use it evey time after you turn off GPS or don't give permission to scan in background when you open Map after tuning off scan.
Click to expand...
Click to collapse
Hi jineshpatel30,
I have already follow the workarounds listed in that thread, but they are related only for WiFi bug...is it correct? If not, is there a specific change?
For the second point, can you explain me better?
Thanks.
il_fabio said:
Hi jineshpatel30,
I have already follow the workarounds listed in that thread, but they are related only for WiFi bug...is it correct? If not, is there a specific change?
For the second point, can you explain me better?
Thanks.
Click to expand...
Click to collapse
Apparently, wifi scan starts in background when we use Map/gps (i think Google asks permission for the same while 1st time setting up device)
and though it's related to wifi, it doesn't really require wifi to be ON for this drain ! It's little bit difficult for me to explain in words but if you see "wifi scan" ON in network tab in setting after using GPS (even through mobile data) turn it off and your battery will not drain away.
It happens to me many times after using navigation and above workaround always helps.
il_fabio said:
Hi,
I'm Fabio and I have an annoying problem.
I have:
- N5 fully stock (bootloader locked and not root) with M 6.0.1 updated to last patch (February 2016)
- few apps (for example, I used Facebook in browser)
With a normal use of Facebook, Instagram, Twitter, Whatsapp, mail, etc...I have a good battery response: over 2 hours of screen and during night, with only data disabled, batteria drops of 1/2%. In general, in standby, the consumption is near to zero...
...until I activate GPS: from this moment, even if disable it, there is an embarassing battery drain (1% in an hour). At the end of battery, before charge it, screen and apps are near to 4/5%.
The only temporary workaround is to reboot, because the problem reappears when I enable GPS.
I have tried all "solutions" proposed into forum:
- reinstallazione factory
- wipe
- GPS in device only
- disabled location history
- etc...
but the problem persists.
Any ideas?
Thanks.
Fabio
Click to expand...
Click to collapse
Hi Fabio.
My name is Dainis. I have the same problem. N5 I bought a year ago and immediately noticed that sometimes the battery discharges much faster. It took me a month to understand that that the cause in GPS. Without GPS, the phone in standby mode, can run for more than 2 weeks, but if previously used the navigation, then from the fully charged discharged in 3 days. The LG support center advised not to use GPS )). At the moment, my phone is in the warranty service for the sixth time (I'm very patient), but I doubt that they will be able to solve something. Maybe you have got to solve the problem?

Galaxy S7 Android System Battery Drain Same As Screen

I have seen this post many times before, but never got a solution to what I am looking for. My Galaxy S7 is about 2 years old now, and no problems with it, have just loved this phone. Recently, I started having a battery drain issue where Android System would use up large amounts of battery. I had this issue on Nougat, and I recently updated to Oreo and the issue isn't fixed. I have deeply looked across the internet on different ways to fix it, and I have tried everything. I have tried wiping cache partition, resetting app preferences, resetting settings, factory reset, clearing data and cache from Google services, turning off background usage for android system, installing Gsam and looking to see what's draining it there, turning off all services I'm not currently using (Location, NFC, Bluetooth, ETC), checking cell signal, turning off backup data for Samsung/Google, not leaving Wifi on in sleep, checking and ending unnecessary running services in developer options, disabling bloatware, and SO much more. Nothing has worked. I get around 3 hours Screen On Time, which I feel is unreasonable. Android system seems OK in the background, but It keeps at the same battery drain speed as the screen. (example: my screen has 13% battery drain, meaning that android system also claims 13%) sometimes it is a couple percent lower, and sometimes higher, but usually close to the same. My sister has a Galaxy S5, and when she uses down from a full charge the android system drain is 3% which is a lot different from what I get. My phone even has a bigger battery than hers, but her's has no problem with battery drain. This is the T-mobile S7, running Android Oreo. Please don't suggest power saving mode, or a lot of limiting options on the phone. What's the point of a SMART phone if I can't use all these neat very useful features? I would be better off with a flip phone if I was going for only calling and texts. Please help me find another solution that will fix my problem.
Thanks in advance!
I could not upload a screenshot, but my battery stats are as follows:
Android System: 14%
Screen: 13%
Android OS: 9%
Youtube: 5%
A game I like to play: 4%
Device Idle: 4%
Cell Standby: 4%
audioserver: 2%
[email protected] said:
I have seen this post many times before, but never got a solution to what I am looking for. My Galaxy S7 is about 2 years old now,.......
Click to expand...
Click to collapse
I don't have this device but, your best bet is to post this question within the following Q&A thread that's specific to your device and variants.
https://forum.xda-developers.com/showthread.php?t=3341138
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.

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