yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S7 Edge Questions and Answers] Canadoc:
Is battery life actually worse given the higher Android system percentage reported? Or is it possible that the way the phone is reporting the drain is different such that it is attributing the number there when the drain itself has not actually changed. What I think to me would be more important rather than looking at how much drain percentage there is is to see if standby time and screen on times actually diminished because of the higher Android system numbers
[Samsung Galaxy S7 Edge Questions and Answers] Zero_Range:
Is there a mirror one could download the APC8 firmware from? And are you on the exynos version?

EDIT: found it on samsung-firmware.org/model/SM-G935F
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
where are you going to stop that service?
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
Battery drain for me has reduced a bit after i turned off the google voice search and backup.

For 2.5 hours, the only package consuming battery was Cell standby.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
When you guys say cell standby is at first is with conections on or off.

Android system get higher with wifi and android OS with 4G.
[Samsung Galaxy S7 Edge Questions and Answers] drmrahul:
am gonna give it to samsung service centre again tomorrow for a detailed checkup. See my pathetic battery life. If they cant rectify it i should sell it
[Samsung Galaxy S7 Edge Questions and Answers] Zero_Range:
Update: I flashed APC8 this morning and Android system took 2 hours to even show up in my stats. It's at 7% now compared to 20% before.

Problem solved!
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
I think the final word would have to consider how much total SOT time and total endurance you get with the latest update (APD1) versus APC8

Because a big % in Android System if the battery life is the same in the end would mean that this is just a calculation issue and that real battery life remains the same
[Samsung Galaxy S7 Edge Questions and Answers] Zero_Range:
This usage would normally have taken me into the 50% range if not less with 20%-25% of Android System. Here you go:
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
Good to know, let us know final results after a couple of charge cycles
[Samsung Galaxy S7 Edge Questions and Answers] Zero_Range:
Interestingly enough for me AS would increase with SoT. So if I had 90 minutes of SoT then AS would sit at 60 minutes of CPU usage or nearly always 2/3 of SoT.

Now AS is barely active at all. I'll report back after a few cycles.
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
Great, keep us posted
[Samsung Galaxy S7 Edge Questions and Answers] Cinco5:
Enable Developer Mode (tap Build Number 7 times under About Phone).

Developer options -> Running Services -> Bluetooth Share -> Stop GATTService

Still going strong -- Android system at 13%, Android OS at 11%. Battery life (especially in idle) has gone way way up.
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
thanks. i just didnt know where in developer options to go
[Samsung Galaxy S7 Edge Questions and Answers] sicutero:
thanx for the tip :).

how would one re-enable GATTService service ?
[Samsung Galaxy S7 Edge Questions and Answers] MickyMax:
Someone else can confirm that solves the battery drain issue on rom newer than APC8?
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Noting change.

APD1
[Samsung Galaxy S7 Edge Questions and Answers] milojoseph:
I'm getting 5hrs but we need to fix that Android Os. Disabling the Bluetooth thing I developer semi worked. Soon will disable Google back up
[Samsung Galaxy S7 Edge Questions and Answers] pnr2020:
I went back to March firmware as any firmware from April onwards gave android os drain it was always at 32%. In March firmware android os only at 6% and battery amazing 7 hrs sot. I'm using March BTU firmware and only disable things that phone can disable no package disabler
[Samsung Galaxy S7 Edge Questions and Answers] zetlaw:
Does anyone experience drain from google services ? My google services keeping my phone awake until reboot or killing the services manually from developers -> running services.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Google services there is a few options you can disable.

I remove all the permissions. And in the security settings disabled all.

Today i had 1% Google services.
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
the canadian firmware's go as far back as apb but there is no apc
[Samsung Galaxy S7 Edge Questions and Answers] Skizzy034:
Where did you turn off Google backup? In settings > backup and reset, the play store, or the individual account? It seems there are quite a few places and I'm not sure which one people mean when they say to turn off Google backup. I have the option turned off in settings > backup and reset but I still get the same batter usage for Android System.
[Samsung Galaxy S7 Edge Questions and Answers] donvito12:
Backup and reset

Poslano sa mog SM-G935F koristeći Tapatalk
[Samsung Galaxy S7 Edge Questions and Answers] Skizzy034:
What does GATTService do? Will it affect anything with the Gear S2 turning that off?
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
Today was the newest low. Highly irritating. A whopping 59% drop on standby.
[Samsung Galaxy S7 Edge Questions and Answers] xiga:
Arghh, I always had great battery life, then I 'upgraded' to the latest APD1 and now it sucks.

If anyone can post a simple noobs guide for how to roll back to the March firmware (plus a link) without losing anything, they would immediately gain Legend status!

ps - I'm in the Uk and rooted with CF-Auto Root. Other than that I'm basically stock.

Cheers guys.
[Samsung Galaxy S7 Edge Questions and Answers] aerocraker:
I usually get around 35% on android system, but I'm not sure if it should be that high.
[Samsung Galaxy S7 Edge Questions and Answers] MRDOCA:
First time for a while ive had this kinda battery life (well 2 days on a row now). Had to turn off my phone for a bit today which is why theres a little chunk missing.
[Samsung Galaxy S7 Edge Questions and Answers] suljo94:
I THINK i found what was eating my battery in standby
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
Okay guys i am going crazy here. I have been meddling with all my settings, have turned almost everything off. Have no clue why i bought a smartphone when i have to turn everything.

Anyway, i am having massive drain from Android OS and System. And do not what the wakelock is.

Can someone please help me out. The 3600 mah battery performs worse than my 1500 mah iphone.
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
what was it?
[Samsung Galaxy S7 Edge Questions and Answers] suljo94:
Wifi @5ghz and Bluetooth they were draining 4%per h in standby but now I only lose 1% per night (wifi on 2,4ghz Bluetooth off) seems like someone messed the modems/kernel up
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
sometimes my phone will connect to my 5ghz but my 2.4ghz performs better and i only keep bluetooth on when im using it
[Samsung Galaxy S7 Edge Questions and Answers] xiga:
I'm going to roll back to the March firmware G935FXXU1APC8 (XEU). Can someone please explain how to flash it through Odin without wiping any data?

Cheers.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Is better always to wipe everything.

Its a advice.

You in 2h put the phone like it was before.
[Samsung Galaxy S7 Edge Questions and Answers] xiga:
I'd really rather not do a wipe though, don't want to set everything up again. Surely it must be possible to roll back without wiping, no?
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
The system always will mess up.

A reset is always the better.

I do a few times month and have some back ups and is very quick to put everything again
[Samsung Galaxy S7 Edge Questions and Answers] expiredd:
I can't find any option to force WiFi to 2.4ghz
[Samsung Galaxy S7 Edge Questions and Answers] suljo94:
My router has 2ssids 1 for 2,4 and one for 5ghz I use tasker to switch between them automatically
[Samsung Galaxy S7 Edge Questions and Answers] meyerweb:
If you reboot the phone it will restart all the standard services. So if stopping this really is a solution, you'll need to do it again any time you reboot.

---------- Post added at 03:57 PM ---------- Previous post was at 03:54 PM ----------

What was it, and how did you get rid of it?

---------- Post added at 04:00 PM ---------- Previous post was at 03:57 PM ----------

It looks like you haven't actually used your phone for much of anything. Battery percentage has to add up to 100%. If you don't use your phone for anything else, percentage for other things will go down, and System and OS (which are always running) are going to be high. You need to actually use your phone for a day to get anything meaningful out of the battery stats.
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
Yes sir i tries not to use the phone and have all apps off to see how the phone sleeps. I am not worried about the percentages but the drain for not doing anything.
[Samsung Galaxy S7 Edge Questions and Answers] Ausboy 2011:
you cannot downgrade BL from apek to apc8/apaw just flash AP from apc8/apaw and leave the others clear. then wipe the device from the recovery after the 1st boot./ You wont get system updates unless you flash the same ap cp and csc
[Samsung Galaxy S7 Edge Questions and Answers] L4s7Re4lG4mer:
I catr believe one of the most expensive phones on the market which is supposed to perform flawlessly in every category has such a childish issues and they are not doing anything to fix that. This is ridicilous. They are just making fun of customers. I am just losing my time during the day to figure out what is draining my battery instead of doing other stuff. My old phone was a 100 bucks chinese phone which with everything on and same usage as my s7 now can put out up to 2 days most of the time. With this s7 i cant even make it last single day till the the evening. Most of the time it shuts down at 22:00 - 23:00 . My SOT time is like an hour and thats it. Its been two months since this mizery and i am really pissed off customer.

So lets sum the things up. I go pay 700 dollars for smartphone and i get 700 problems. Congratulations Samsung.
[Samsung Galaxy S7 Edge Questions and Answers] Cinco5:
https://learn.adafruit.com/introduction-to-bluetooth-low-energy/gatt

Couldnt tell you how it affects individual devices. I only use BT for music and calls in my car, and the occasional small file transfer. You'll have to see for yourself if stopping it affects anything.
[Samsung Galaxy S7 Edge Questions and Answers] juky7701:
Except APD1, is battery drain noticeable and present in any other firmware version? I am ready to downgrade to APB9 so I am curious before taking that step
[Samsung Galaxy S7 Edge Questions and Answers] MickyMax:
Try APES (available in another thread).
[Samsung Galaxy S7 Edge Questions and Answers] juky7701:
Thanks [MENTION=690132]MickyMax[/MENTION], will listen to your advice. I guess standard procedure with Odin will do or I need to flash it via Cygwin/CSC?
[Samsung Galaxy S7 Edge Questions and Answers] MickyMax:
With the last release of Odin.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Guys try this and let me know.

Turn it off.
[Samsung Galaxy S7 Edge Questions and Answers] saketkutta:
Anybody tried gservice fix yet. Granted I'm not on s7 but I started having this battery drain after i updated to marshmallow. So I know how it affected my battery. And per one comment here I turned off my Google backup and installed gservicfix my battery life is fantastic. Plus the only battery drain problem I had was the after charging to 100 percent and using it without restarting. Maybe you guys are having different drain problem not related to Google backup. But test it by checking your Android system battery usage. If Android system is keeping your phone awake while it was supposed to be sleeping/idle then try this fix. If it's different then we need to research it.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Let's see if im right.

People android system is higher when wifi is on and Android OS is higher with 4G on, but if we let the connection on if is wifi or 4G and don't touch the screen and don't do screen on time, you will always have android system and Android OS higher,the best is always the screen at first or simple turn on connection when you need it..

At least on Marshmallow.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
Every recent firmware beginning with APD1, has the drain issue. You need to downgrade to APC8 or lower.
[Samsung Galaxy S7 Edge Questions and Answers] irony17:
How can we downgrade?

Just flash the rom?

---------- Post added at 09:33 PM ---------- Previous post was at 09:26 PM ----------

Turn what of?

Uninstal?
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Install the app and turn off the light of the buttons, it saves a little bit battery
[Samsung Galaxy S7 Edge Questions and Answers] Skizzy034:
What does the fix actually do?
[Samsung Galaxy S7 Edge Questions and Answers] zetlaw:
Just got back to APB ROM after being a month with APD.

Battery is great i recommend everyone to downgrade
[Samsung Galaxy S7 Edge Questions and Answers] saketkutta:
I absolutely have no idea but doing both (I haven't tried both separate I did both together) got rid of my Android system using battery after charging.
[Samsung Galaxy S7 Edge Questions and Answers] Cst79:
Yes.
[Samsung Galaxy S7 Edge Questions and Answers] drmrahul:
Can anyone post how to downgrade the firmware without rooting? I would prefer apb or apc . My battery life is pathetic. Please post a link also. Am unable to find it from sammobile. Please it will help people like me. It wont take much of your time right to copy and paste a link?
[Samsung Galaxy S7 Edge Questions and Answers] xiga:
^^This right here.

To all those messing about with Bluetooth, Wifi, 4G, Gservicefix, etc, etc, stop what you're doing and just roll back your firmware, your battery life issues will be solved.

I rolled mine back to APC8, Android OS is now sitting at 10% and Android System at 6%, and battery life is back to being great.

I for one won't be going anywhere near another update until i know for damn sure there are no issues with it.
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
can you tell if there is a difference from apb to apd in software or camera?
[Samsung Galaxy S7 Edge Questions and Answers] MikeGR7:
Worst side effect is you lose the latest monthly security patch.

Other changes are not noticeable.
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
Ok guys, just downgraded to stock BTU APC8... We'll see how it goes
[Samsung Galaxy S7 Edge Questions and Answers] saketkutta:
that is because the problem started with April security update (as per the research of someone in this thread). I am on s6 and it started after i got marshmallow which was on May update. Before that I was on lollipop with march update. Can't downgrade. So I was looking for a fix and it worked.
[Samsung Galaxy S7 Edge Questions and Answers] orlans21:
alright maybe ill do it...right now i just got a dead pixel on my phone yesterday and gotta get the screen replaced.
[Samsung Galaxy S7 Edge Questions and Answers] alexchiuaua:
Well, I had the same problems with the battery drain. When I bought the phone ,a week ago,the battery lasted almost 2 days with regular use ( WhatsApp, Facebook, Amazon etc) but Saturday night the phone downloaded the last update and yesterday went to work at 6 am with 90% and at 10 am had 55% with almost no use. Y made a factory reset and disabled the Google voice recognition and now seems that is fixed. Didn't charged till today when I had left 8% . Last night went to sleep with 32% and after 7 hours had 31%. So,I'm happy again coz my precious is back :D

Enviado desde mi SM-G935F mediante Tapatalk
[Samsung Galaxy S7 Edge Questions and Answers] irony17:
Not sure it's relevant but I freezed the smart manager and now drain is down to 17%
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Change this morning for e new s7 edge, and turn on the wifi just to sync my accounts and then 4G.

I dont update jus keep the APC8 and it seems android OS is standing down.

Let see after a 2 3 charges.
[Samsung Galaxy S7 Edge Questions and Answers] ManDone.vRs:
i removed from priv app 3 folders :

UrgentFWUpdateNfc

UrgentFWUpdateSensorHUB

UrgentFWUpdateTSP , and now i have 9% drain battery Android OS instead of 28% , battery is now super ok .
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
How did you do that?
[Samsung Galaxy S7 Edge Questions and Answers] ManDone.vRs:
with root :)
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
And if you disable it with package Disabler.?
[Samsung Galaxy S7 Edge Questions and Answers] ogrillion:
I have the T-Mobile s7 normal version, so may be different. However, if I downgrade my firmware using Odin will it trip Knox? New to the Samsung world IP
[Samsung Galaxy S7 Edge Questions and Answers] MikeGR7:
The effect, if there is any, should be exactly the same.

No mate using odin to flash any official samsung firmware won't trip the knox counter.
[Samsung Galaxy S7 Edge Questions and Answers] Facuu:
What about the s7 flat guys? I'm on APD9 with android system and android os eating up to 50% of my battery. I'd like to try another firmware. Is apc8 available for this phone? As you are reporting that it works much better.
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Thanks.

But i don't use package Disabler no more i already test it in a few ways but mess with the system and don make a difference.

What sot do you make with your phone rooted.?

And how is android system and OS.?
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
Finally some relief. Getting thjs battery backup since last two days. Sync and backup is off. Google voice is off. Just tryilng to figure out thr mediaserver battery now.

And most important tip is that dont charge your phone to 100% and if you do, make sure you restart your phone.
[Samsung Galaxy S7 Edge Questions and Answers] ssgunner20:
Just turned off the google voice and already had back up off. Sync i only have my email 2 are manual and 1 every 4 hrs.1
[Samsung Galaxy S7 Edge Questions and Answers] bluemu:
I actually stopped following this forum because my battery life issues are resolved now using the current T-Mobile software version (nothing to do with the current version), but I randomly received a forum update in my email, so I thought I would post my final solution. I use Greenify's aggressive doze feature, but don't set any of my apps to hibernate. Similarly, I don't use a package disabler, since the packages I was previously disabling were causing wakelocks. I also use ForceDoze and whitelist those programs I don't want to doze (e.g., Textra, phone). Finally, the most dramatic change occurred for me when I applied Gservicefix (make sure to follow the directions to a T, and re-run the program if you think you did not follow the directions precisely the first time). You may need to re-run the program when you install updates. Anyway, I couldn't be happier since using this combination of apps. Perhaps, others still get better battery life than I do, but my quality of life has improved tremendously since using these apps. Enough so that I don't follow the forum anymore after months of following the forum.
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
Thanks for the tips. But, isn't ForceDoze's function and Greenify's Agressive Doze feature is the same?
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Just forget the Google back up, don't do anything.

Just downgrade to APC8.

And use other app for emails and you don't need to have the sync on all day.
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
Does anyone have a fast link for any APC8 firmware? I would also like to test this based on your feedback.
[Samsung Galaxy S7 Edge Questions and Answers] moulip:
Battery not so good

Hello everyone,

I am posting now because I am not very happy with battery life. II have given up on my G4 because of the poor battery life, and The S7E is far better, but comparing to most of posts I have read so far, there is something wrong or faulty with mine.

I have max 5 hours SOT and it only occured a few times, but on daily basis, I am near 3 hours with 1 day and a half. Which is not so deastrous but IMO could be better.

The app I am using the most is Podcast Addict and it seems that it's kind of a battery hog. I don't have facebook, I am on wifi most of the time at work and at home, BT is only on in my car and it's 5 mns max per day, no NFC, no AOD, disabled Google backup and Google voice this morning.

Can you please have a look at this screenshots and give me your thoughts ?

Many thanks in advance.
[Samsung Galaxy S7 Edge Questions and Answers] sahil sharma:
A noob question. Do we need to be rooted for the downgrade process?
[Samsung Galaxy S7 Edge Questions and Answers] anibalhuneeus:
No, you can downgrade easily just by flashing the APC8 stock ROM via ODIN

It's pretty simple... The downside is that you lose all data, but you can easily backup with SmarrSwitch and restore after flashing (this backups almost everything but as a disclaimer doesn't leave your phone exactly as it was before)

Cheers
[Samsung Galaxy S7 Edge Questions and Answers] Simone:
What back up did you use?
[Samsung Galaxy S7 Edge Questions and Answers] cavags5:
Google account as normal, Samsung account, and sd card.

Never sync my contacts.

I lot of copies on sd or cloud and pass to the device .

2h i have everything like it was.
[Samsung Galaxy S7 Edge Questions and Answers] C0derbear:
In theory you can also use Samsung Smart Switch on your PC to backup/restore lots of stuff. Haven't tried it myself though.
[Samsung Galaxy S7 Edge Questions and Answers] bluemu:
I thought that this would be the case as well, but seemed to notice some improvement from using both. I had previously relied solely on Greenify.
[Samsung Galaxy S7 Edge Questions and Answers] dave7802:
I noticed a massive decline in my batter life after i installed 4 applications:

Facebook

Facebook Messenger

Whatsapp

SnapChat

Battery Stats would not show a high usages from any of the applications.

But after removing them. Or Killing them to RUN only when i open the app. I have my long lasting battery life again.

While every two devices are different. just a Cent worth
[Samsung Galaxy S7 Edge Questions and Answers] saketkutta:
Android system on mine is back at using battery. The only change I did yesterday was to encryption settings and this morning android system was using battery after removing from charger. I need to find out more.
[Samsung Galaxy S7 Edge Questions and Answers] nminhcuong:
Run only when opened is an option or u need root?

Thanks
[Samsung Galaxy S7 Edge Questions and Answers] dave7802:
Root + Xposed (Does not help sorry)

I use a BootManager to disable the apps from starting.

I stop them from Syncing.

I use Tasker to ensure the application is FULLY closed when i close / minimize the app.

You can also use things like Greenfy to stop it from Syncing and draining battery (Allthough i have not used Greenify, I dont believe i need to)

Additional, as a knock on effect from this, I dont get notifcations or real time updates (but thats my choice, battery or a real time facebook notification)

(I could not care less about FB to be honest, its just something to kill 5 minutes while standing waiting)

Am happy to only get the notifications on these when i open the app (Am not a heavy Whatsapp user, Mainly for sending pics and docs)

i can get a full day out of my battery without charge on a serious heavy usage

(I play clash royale for about 2 hours per day)

Clash of clans, Boom Beach and some puzzle games, Totaling about 4/5 hours game play.

While the Games are not battery hungry, the device is on and active all the time. Screen on time, Not always in deep sleep as am always using the device.

Exynos Version if this makes any odds to you with high battery usage.