yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
If they start acknowledging the problem, they might habe to start replacing or release an update. Ignorance is bliss.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
I just flash APF2 and im put my settings right and Android system is high, very colse to the Sot.

Let see next days the battery and the android OS
[Samsung Galaxy S7 Edge Questions and Answers] Cinco5:
So far it's been good for me, much better than what I was running (latest, Verizon USA).

I'll try and drop some screen caps later, as well as actually analyze what's going on.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
They just pretend it is unknown. The engineers know, believe me. But I think that it is not a bug, they need that drain for something they don't tell about, like security, Samsung Pay, etc which was not released in the first firmware.
[Samsung Galaxy S7 Edge Questions and Answers] quarintus:
But why isn't the drain consistant then? Why do some devices have it and other's don't have it?
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
Every device has it... The ones that have it are all updated to the newer firmwares, old firmwares (approx March) and before don't have it, it's just a matter of having updated
[Samsung Galaxy S7 Edge Questions and Answers] Facuu:
I just saw that on airplane mode i didnt have any android system and android os and i mean any. I was on wifi only and were like this for more than two hours. As soon as i turned on the celullar radio and data, android system and android os appeared and started draining the phone.
[Samsung Galaxy S7 Edge Questions and Answers] Naemion:
I'm starting to wonder if it has something to do with that new boosted antenna they having these phones.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Here it is first charge with APF2

Doesn't seem any better.

Reboot after charge, and Android system is at first.

If next charges stays like this i will return to APC8
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
I suggest doing a factory reset when you flash a new firmware. Even some APC8 users can't maximize their battery life. That's why devs suggest flashing their ROM with a full wipe.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
I always do That before and after for no mistakes.

Its the better way to test the firmware.
[Samsung Galaxy S7 Edge Questions and Answers] ByeByeBlackbird_:
This is exactly my experience :confused:
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
I will test tomorrow with airplane mode to see if doesn't show too.
[Samsung Galaxy S7 Edge Questions and Answers] skivnit:
Can you please upload apc8 to mega?
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
APC8 with Airplane Mode on, no network usage.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Is a good sot and the standby is always better with airplane mode on.

But is not fair,

We have a phone we must have signal on.

But around 1h 10% with wifi and low brightness at home is possible with airplane mode off.

But is good.

First charge with APF2 after 2h android system is stabilise and now im on 4G since 90% and is hanging on pretty good.
[Samsung Galaxy S7 Edge Questions and Answers] Mayoskar:
I'm not completely satisfied with the battery life - I have to charge it every second day, but the problem of modern devices is IMHO the battery technology. We may have to wait some more years to get devices which last considerably longer with one battery charge than today. I think the whole Tesla hype is pushing the advancements in battery technology much faster from now on. At least I hope it does

PS: The battery of the S7 is charging very fast, so the charging isn't so bad as with slower charging devices :)
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
I posted this for those who were asking if Android System and Android OS drain is present on Airplane Mode.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
I notice that it was a test.

It seems android system is still there but lower .

Like i said i will test tomorrow just to see how it works with APF2.

Keep us posted.

Thanks.
[Samsung Galaxy S7 Edge Questions and Answers] Gentei0075:
So after the new firmware updat like a month ago i too have this problem with android system....

Can anyone tell me how do i install the old firmware please.
[Samsung Galaxy S7 Edge Questions and Answers] MickyMax:
G935FXXU1APF2 results

This is my results with G935FXXU1APF2 (last France ROM, dirty flashed).

1 day and 18 hours on battery.

Android OS stills high (16%). I thing this is related to the cellular reception which is really bad in my home area.

However, 4 hours and 32 minutes screen on time.

My S7E slept near 1 day and 14 hours!
[Samsung Galaxy S7 Edge Questions and Answers] Nemaides:
Yeah that's kinda not true. I have the latest firmware and mine is as inconsistent as all hell. I have managed to "fix" it in a weird way. Basically I never charge to full. If I do, I force it to drain about 5% by restarting and then charge it back to 98% and take it off. It seems to give me half the drain I normally would have.
[Samsung Galaxy S7 Edge Questions and Answers] ssgunner20:
I do the same minus the recharging back to 98 if i fully charge. I try to not charge past 89.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
What is the difference, does the sot improve?
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
There is some sort science behind this. I read multiple articles in the internet before on why you shouldn't charge your battery to a 100%
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
What I do is charge to 100 turn it off with the charger leave 2 minutes and turn it on.

In the note4 is the best way to charge it.

Edit.. 3rd charge always 4G

Seems APF2 its good.
[Samsung Galaxy S7 Edge Questions and Answers] ssgunner20:
Not sure. I mainly do it to not reset the on battery meter. What ive noticed is my idle time has increased so i assume my phone doesnt stay awake while im sleeping.
[Samsung Galaxy S7 Edge Questions and Answers] Galactus:
APC8 is definitely the king for me. So much easier when you're comparing your own usage to be able to identify if different firmware is better or not. It's 6am here and I haven't slept so screenshots will have to wait lol:

APD1 - Max SOT = 8 hours in 24-28 hour period (WIFI) - Average SOT = 7 hours in 24 hour period

APD1 - Max SOT = 6.5 hours in 24-28 hour period (weak 4G/LTE) - Average SOT = 5 hours in 24 hour period

APC8 - Max SOT = 10 hours in 30-34 hour period (WIFI) - Average SOT = 8 hours in 30 hour period

4g/LTE currently testing

Aggressive Doze "NOT" enabled during my APC8 tests.

Hardly anything disabled (Just play movies, games, hangouts, gear vr service, facebook)

Auto brightness (values vary from 10% to 65% brightness)

Stock EE UK ROM

Android System & OS are never above 10%
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
Why do you guys have Greenify and ForceDoze together? I would like to know. I thought the Aggressive Doze feature is as the same as ForceDoze.
[Samsung Galaxy S7 Edge Questions and Answers] Galactus:
I made 2 mistakes. First one is that I haven't used aggressive doze in greenify for APC8. Second, I meant aggressive doze originally and not force doze
[Samsung Galaxy S7 Edge Questions and Answers] Facuu:
What's the changelog on the firm after apc8? Maybe we would know what's affecting the battery
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
"Removed reviewer-fooling code, removed CPU throttling, removed benchmark detection, activated phone radios at full power" :D
[Samsung Galaxy S7 Edge Questions and Answers] juky7701:
We all knew that

http://www.androidheadlines.com/2016/06/android-os-bug-causes-battery-life-issues-via-wakelock.html
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
So.. someone try disabling Android backup and report back? LOL
[Samsung Galaxy S7 Edge Questions and Answers] Symphony0fLife:
Getting this as well. It's very high on the list, but battery life still seems pretty good. Coming from iOS since the first iPhone, I'm very unfamiliar with how android works so I wasn't sure if this was how it was supposed to work or not.
[Samsung Galaxy S7 Edge Questions and Answers] irony17:
Hi, could someone try what I did in order to confirm?

I went (so far) from 35+ android system battery drain, to 17 %

I uninstalled via titanium Backup "people edge" and edge panel.
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
Can anyone post the canadian firmware sm-g935w8 APB because I cannot find it on sammobile.com. All they have on there are APD and on other sites its very slow download speed
[Samsung Galaxy S7 Edge Questions and Answers] shiner66:
No change at all

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[Samsung Galaxy S7 Edge Questions and Answers] wrexed03:
Hi All just wanted to throw my hat into this. I had the battery drain issue after reading many posts i tried some of the various firmware revisions with no success.

I would get 10-12 hours use out of mine before the battery had run out.

I think i have resolved it now but thought i would share with what i did.

I installed the following files using odin.

AP_G935FXXU1APC8_CL7211170_QB8936445_REV00_user_low_ship.tar.md5

BL_G935FXXU1APC8_CL7211170_QB8936445_REV00_user_low_ship.tar.md5

CP_G935FXXU1APBD_CL7211170_QB8736702_REV00_user_low_ship.tar.md5

HOME_CSC_XSA_G935FXSA1APAW_CL7108765_QB8404040_REV00_user_low_ship.tar.md5

I got the phone to boot and entered the bare minimum so i could get it to start up as in accounts gmail and so on.

Cleared the cache and then performed a factory reset let it reboot and then installed what ever apps and accounts i normally had from scratch.

Its been running 15 hours so far and another 12 hours remaining.

Which is great compared to previous run times. Android System is currently sitting on 2%

I am also running greenify and doze just incase. I might unistall these two apps after a week and see how it performs without them. I was running these previously.

Phone goes to sleep now when left alone for long periods of time.

Hopefully it stays this way and this assists some of you with the current issue at hand.

I haven't disabled anything or any other processes with the above.

Regards
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
Nice info,but I don't think mixing is a good idea. In my case in runnig APC8 and getting around 18 hours per day

Greenify definitely helps with the aggressive doze feature
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
Relax guys! Eventually, the Android OS drain will fix itself. [emoji108]
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
In other words, you downgraded to the APC8 firmware. I don't know why you make it seem so complicated.
[Samsung Galaxy S7 Edge Questions and Answers] choosymoron:
Facing this issue on my S7 as well... Even in the June update.
[Samsung Galaxy S7 Edge Questions and Answers] xabhi:
Does this relate to the BeaconBle_Wakelock?
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
So, has anyone tested if on the newest UK Build (APF2) the problem is still present?

I'm reluctant to update from APC8 until I Have clarity on this

Cheers
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
I too reboot my phone after a full charge. It reduces the overall drain and also keeps the Android Os and Android system low.
[Samsung Galaxy S7 Edge Questions and Answers] alexdiaz:
Yes, it's still present.

Android system never goes under 14% with my usage.

And as a bonus, with APF2 came lag and stuttering while scrolling through contacts. Phone history scroll seems ok though.

Starting to regret I've bought a Samsung... I was really afraid of their software incompetence.
[Samsung Galaxy S7 Edge Questions and Answers] shiner66:
The funny thing is that in the changelog they say "better performance, bugs fixed" you what Samsung?

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[Samsung Galaxy S7 Edge Questions and Answers] denzel09:
Probably you have a defective phone man.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Today don't use not so much the phone and in 4G Android OS comes up.

But now im on wifi it will go down
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
Yeah, stuttering when scrolling contacts surely means the phone is defective :))
[Samsung Galaxy S7 Edge Questions and Answers] Ausboy 2011:
Not defective lol its the ****ty software after apc8.

Sent from my Exynos S7 Edge
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
You defend APC8 with your life.

?

What ACP8 do you have? BTU?
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
Today updated to APF2 and battery is draining like crazy. Whats wrong with Samsung.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Did you do a factory reset after?

Sunday its the i m on wifi all day and my normal usage,

And Android System is always around 15%

Last 2 days i charge my phone a little different.

Phone is on until 98 then turn off wifi or data.

Then turn it off leave it until 100 and turn it on.

Then its good.

Android System seems to be ok.

Edit..

Just checking my mega and kitkat was the best OS.

Just the difference of data on Android System from mega with 4 days on battery on wifi, to s7 edge half a day with wifi.

They have to fix this quickly.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
Worst mistake you could make regarding battery life. Go back to APC8.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
I really don't see so much difference.

In wifi APF2 is better.

I have the XEF all 4 files flashed and factory reset after.

I presume a lot of people flash without lose the data and don't do factory reset before and after so don't expect to work properly.
[Samsung Galaxy S7 Edge Questions and Answers] alexdiaz:
You've repeated 10 times that APF2 is better for you. We got it, you can stop now.

Factory reset after each OTA is just plain stupid and won't lower your Android system percentage, as this is an issue brought by Samsung in the OS itself.

APF2 just isn't as good as the first 2 software releases for this phone.
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
I dont get the whole point of a factory restore. Its not a major software upgrade that i would need to factory reset each time. I dont want to lose my data and then reinstall everything.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Sorry if I don't make my self clear,

What i mean is who flash a lot downgrade and upgrade i advice a factory reset, and a normal person by OTA no need to do it of course, but times to times if the phone have a lot of issues is always better.

I already did a few and factory reset and sometimes fix some issues.

And Android system is samsung fault we know that.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
You don't see much difference but your (huge) screenshots show that the stand-by time is barely 24-30 hours while APC8 provides 48 hours of stand-by at the same SOT. APC8 is at least 30% better regarding battery life. It's so obvious, it just hurts....
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Its never more than 24h because i charge every day.

But with average use could last 48h.

For my use i say its better.

But i will try again the APC8 just to see the difference..
[Samsung Galaxy S7 Edge Questions and Answers] quarintus:
People saying that it is fixed and showing andoird system is 13 to 15 percent. Then no. It's still there.

It should be 3 to 7%.

My battery usage is: 20 % screen (1 hour 45 mins SOT)

second: mobile standby: 18% 19 hours

If mobile standby isn't up there the device is not sleeping properly. After mobile standby I have google services, andoird OS, Email spotify snapchat, and then: android system....)

Doing my second cycle, wit heverything enabled, bluetooth, google backup, location settings, loads of apps. streaming music I'm in 20 hours now at 57% battery.

So that will be 2 days, with 4 hours SOT.

I used to get 3-4 hours SOT with 1 day.. or less.

APC8 is just better.

BTW, it seems to be a problem with the OS from google, not samsung. nexus devices have the same problem it seems. So we just have to wait untill google brings a new update, and then for samsung to incorporate that

(yes I have tried APF2, with facotry reset, I always do factory reset and start clean without backup, and it doesn't compare to APC8, even if it SEEMS a little better, but in my experience it is not)
[Samsung Galaxy S7 Edge Questions and Answers] alexdiaz:
I don't think it's a problem from Google. There are some issues from Google with Android system but those are because of backup & restore and location history. Once you disable those, you're fine. Also not all devices are affected.

Look at OnePlus 3 battery thread for example, Android system tops 5%.
[Samsung Galaxy S7 Edge Questions and Answers] MickyMax:
I don't have the android os drain on my Nexus 7 (2013). So, it should be related to Samsung's implementation.
[Samsung Galaxy S7 Edge Questions and Answers] quarintus:
It just depends what version of the software from google is being used by the manufacturer. Possibly it's just one specific build that is being used.

The argument that not all nexus phones have it, is not valid since not all galaxy s7 phones have to problem. if it owuld be valid, then it should also be true that the problem is not with samsung.

http://www.androidheadlines.com/2016/06/android-os-bug-causes-battery-life-issues-via-wakelock.html
[Samsung Galaxy S7 Edge Questions and Answers] gladiator1105:
android system taking 50% because of this ( attachment)

anyone knows how to stop it :(?

making factory reset will take so long and i dont want to make it
[Samsung Galaxy S7 Edge Questions and Answers] shiner66:
Package disabler

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[Samsung Galaxy S7 Edge Questions and Answers] gladiator1105:
i tried but it still running ! it shows in the package disabler that its disabled but shows its running ! when i stop force it

after few sec. its back to running :(
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
A lot of people have disabled the Google Backup service and the problem is still present.
[Samsung Galaxy S7 Edge Questions and Answers] DhillonM:
+1

Yup, I disabled Google BackUp and still experience high battery usage by Android System.
[Samsung Galaxy S7 Edge Questions and Answers] quarintus:
That does not mean that the problem isn't with google's android. Disabling gogole backup isn't shutting down a service. You are not disabling an app. You do say to a service not to make backups, but that service is still running.

I know the problem persists with google backup disabled. The article i mentioned was just to show more devices have the problem. But searching the forums at de Huawei nexus, I could not find any complaints..

Any solutions brought forward till this moment (that I have found anyway) don't work, except turning back to old firmware APC8.

What keeps itching me is the fact that not everyone is experiencing the problem..... THat's just so strange.. There are two possibilities:

Or there is something user specific that triggers the bug. If this would be any phone setting, we would have found it by now... It could be something like: people who don't restore a google backup when installing the phone have the bug. But that's unlikely.

More likely user specific settings are: Previous owned phones and their backups? Google account settings? maybe corrupt backups?

Or something device specific, like a different display panel or a different batch of chipsets.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
You draw a lot of conclusions based on wrong assumptions.

Actually, everyone with an Exynos model and a firmware newer than APC8 is experiencing the problem. There is no one that has Android System in the single digits with APD1 or higher. And the US (Snapdragon 820) models have this problem from their first firmware.

My phone in particular has a 4% Android System drain with APC8, and 15-20% with APD1 or higher. So it's not necessarily a hardware batch issue.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
You have 4% Android system in wifi ?.

Or in 4G.
[Samsung Galaxy S7 Edge Questions and Answers] aegeuss:
Sometimes one believes it's intentional.

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[Samsung Galaxy S7 Edge Questions and Answers] thunderroid:
APF2 sucks for me, high Android System battery drain, went back to APC8, battery life now rocks once again.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
Both. I use Wi-Fi 80% of the time and 4G 20% of the time. It never goes over 4% no matter what.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Ok tonight im gonna flash ACP8 BTU

But when I had ACP8 always have more than that.

I will see and report.

But im 80 in 4G, only at weekend its when I can see in wifi.
[Samsung Galaxy S7 Edge Questions and Answers] DhillonM:
This is more of a fw problem, same happened when they first updated Note 5 to MM from 5.1.1

Same is happening now.
[Samsung Galaxy S7 Edge Questions and Answers] alexdiaz:
Clearly you don't know what you are talking about. The link shows there are issues with Android OS, which is more of the core OS processes... kernel, not Android System which is more of additional processes. We do have a small issue with Android OS because it's still a bit higher than it should be, but Android system percentage is just insane...

Also I don't know how they managed to make scrolling through contacts lag in 2016... this came with APF2.

If these issues won't be fixed in the next big update, I'm really considering selling this software-crap flagship.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
I actually think that it is not so clear that he doesn't know what he is talking about.

The Android System drain also affected other, non-Samsung devices lately, so it may be possible that a certain Android release by Google introduced some issues. That release was used as a base for APD1 and higher, while an earlier release may have been used as a base for APC8 and lower. Google cannot afford to fix anything other than security issues between monthly releases (the reason being mainly GSM carriers which do not accept sudden changes without testing), so even if the issue is known, it may take a while until a non-security-related bug fixing release by Google. It's just a supposition, but it may be possible.
[Samsung Galaxy S7 Edge Questions and Answers] quarintus:
I was speaking in possibilities, not in conclusions. Also, Android system isn't core OS, correct. It is a collection of a lot of services. Also, google services. Consider the following:

i'm selling flour, but I'm an constantly making it better, changing it. You are a baker, buying this flour, and making bread. Every week I have made changes with the flour, but everytime you use new flour, you have to get used to it to make the best bread you can. So once in a while, you get a new type of flour, and than adapt the baking process to the flour you bought. Constantly using the newest flour would mean that you would constantly need to make adjustments, because your first few attempts will probably have some flaws.

But I imagine samsung doing the same. Not taking every android release. But just once in a while when there are enough improvements they will take a new release.

Now still, this is just hypothetical I was just speaking my mind. Untill now noone has been able to fix the problem.

Other news: There is a new update, APF3 for some countries. Won't get your hopes up. Still APF and changelist number is still the same.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Here it is the APC8.

After remove from charger.
[Samsung Galaxy S7 Edge Questions and Answers] quarintus:
so strange, that's the first one I see with such high android system on that firmware.

Did you do a factory reset?

Did you JUST installed the firmware? Because it should say: Optimizing apps on top. But if you didn't do a clean install, then maybe not?