yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I'm not using 3rd party antivirus . I'm using the maximum resolution on screen but this doesn't seem to be a problem because the drain is on standby. I had the exact issue on crb7 but not in nougat . It's not only in airplane it's all day but in airplane I diminish the bad signal reason . Im not at 60% in night but 15-25 even in airplane .

As I said I tried removing the SIM (which is like in airplane mode) and the drain was gone . I suspect the SIM reading firmware or the modem firmware misbehaves and drain battery.

Even if I full charge it and don't touch it all day it will last 27-30 hours which is bad . Now with very light use during the day it last 17-20 hours :(
[Samsung Galaxy S8 Questions and Answers] timo74:
the factory data recovery made from the Android menu is the same if done by the recovery menu: wipe data and factory reset? (volume + power + bixy key) or change the "depth" of the reset / reset?

---------- Post added at 12:15 PM ---------- Previous post was at 12:11 PM ----------

try to install Accubattery and verify the % of drain with display Off ( standby ) and the % in idle / deep sleep

---------- Post added at 12:15 PM ---------- Previous post was at 12:15 PM ----------

try to install Accubattery and verify the % of drain with display Off ( standby ) and the % in idle / deep sleep
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Both resets are the same .

I have installed accubattery but didn't managed to find what is the cause. The fact was that standby eats 2-3 % per hour
[Samsung Galaxy S8 Questions and Answers] ArchieZA:
Hey guys, I think I've cracked it. I also got Oreo a few weeks ago (on my International S8) and my battery life turned to utter crap! (estimated time from a full charge was around 13 hours). I then got the March Security update (CRB7) and that didn't fix it either. One thing that I remembered while reading this forum last night was that the Oreo update offered the "new feature" to enable WiFi Calling. Because the phone signal in my house is really bad, i enabled it (just after the initial Oreo update) and forgot about it. Last night I disabled it and today I have been keeping an eye on my phone and everything has gone back to normal (about 25 to 28 hours predicted on Nougat from a single overnight charge).

Before I disabled WiFi Calling, Android System was using about 45% of my battery and my Screen-On-Time was only using about 25% (around 1h30)

I have a feeling that WiFi calling may be enabled by default with certain carrier updates (mine was not), which is why factory resets have no bearing on the battery drain.

Anyway, to check/resolve this open the "Phone" app (as if you were going to call someone) and hit the three dots in the top right hand corner (next to the search bar) and tap "Settings". Scroll right to the bottom and turn off "WiFi Calling"

P.S. You must open the dial pad, not your "contacts" or "recents"

P.S.S I have not done a factory reset on my phone nor disabled any built-in apps like Bixby

I really hope this helps you guys out. I've been looking for an solution to this issue for the past 4 weeks now and I've finally found it.

You're welcome :)

Regards

Archie ZA
[Samsung Galaxy S8 Questions and Answers] theprfct10:
Thanks trying it now and will report back!
[Samsung Galaxy S8 Questions and Answers] theprfct10:
Well this sucks. I don't seem to have that option
[Samsung Galaxy S8 Questions and Answers] linom:
There is no such option in 950FD variant (Dual sim-international)
[Samsung Galaxy S8 Questions and Answers] timo74:
Yesterday evening my % of battery eat 10 % from 20.00 to 23.30 p.m. ( 2,85 %/h. average )

after this, I've tried this: switch data connection ON : change LTE to 3G connection ,

switch data connection ( 3G ) OFF , After this night, the battery consumption was 2% in 7 hours ( normally )

This morning I've switched on data connection ( 3G ) but stayed on EDGE connection ( not 3G ) , I've change again to LTE and LTE in available .

Maybe modem have the same issue that aeroplane mode

i don't have this menu on mine
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I don't have this menu . I think this is carrier enabled. I don't think there is something to do . We have to wait for fix .
[Samsung Galaxy S8 Questions and Answers] theprfct10:
I found the setting for Wi-Fi calling Under Advanced calling Under settings mine was on I turned it off and so far I have noticed a significant Improvement in my battery life could be coincidence but I highly doubt it
[Samsung Galaxy S8 Questions and Answers] ArchieZA:
Glad you found the setting and it sounds like it is also working for you. My theory is that Wi-Fi Calling is preventing the Android OS from entering a deep sleep. This could be because of low GSM signal and constantly trying to switch between Wi-Fi calling and normal GSM network. It could also just be the way that Wi-Fi Calling was built.
[Samsung Galaxy S8 Questions and Answers] Robert3750:
I checked that setting after the upgrade and it wasn't on. Battery life has been fine.
[Samsung Galaxy S8 Questions and Answers] update_king:
Wifi callnig was off on mine since last update and factory reset. Have you check if apps like beaming services, AASAProviders, etc are still consuming battery?

Thanks
[Samsung Galaxy S8 Questions and Answers] Vagosd:
For all of us that there is no WiFi calling option what's the solution ? Have anyone found a post/report that Samsung is aware of the problem and is going to be fixed in the next update ? Or how long is going to take for the next update?
[Samsung Galaxy S8 Questions and Answers] Software Guru:
Must admit no WiFi calling on my phone but battery definitely better after the latest update
[Samsung Galaxy S8 Questions and Answers] Tanak Vagu Avantang:
Ow i just downloaded oreo update but after reading all this, i have my doubts. Its on CRB7 exynos.
[Samsung Galaxy S8 Questions and Answers] picaadi:
Battery life is **** for me.....had great on nougat...crc7 sucks bad....and i have little apps instaled....tried even factory reset
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Better wait a bit more until they release an update with a fix . Nougat was rock solid on S8 and you better stay there.
[Samsung Galaxy S8 Questions and Answers] Tanak Vagu Avantang:
Couldnt resist and now suffering hahah
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Samsung is really bad on support. Even cheap Chinese phones wouldn't left with such a serious bug for such long time . It's 2 months now and no official confirmation that the next update will fix it. So we probably have to trade our phones and never go back to Samsung
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Crd7 is out for Germany . Is anyone using crd7 version to confirm if it's fixed or not ?
[Samsung Galaxy S8 Questions and Answers] picaadi:
Using crd7...seems better , only went through two cicles of charging....keep u posted when i reach 5 or 6
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Please check if airplane mode consumes battery throught the night .
[Samsung Galaxy S8 Questions and Answers] picaadi:
Will check tonight...post in the morning
[Samsung Galaxy S8 Questions and Answers] Software Guru:
I've done this on the latest update approx 7% drain over 8hrs
[Samsung Galaxy S8 Questions and Answers] picaadi:
Tested on airplane mode ..no drain for me

View attachment 4482809

View attachment 4482810

1% in 7 h pver night baterry drain...focking nice

Crd7 and no always on mode on.
[Samsung Galaxy S8 Questions and Answers] Vagosd:
It seems very good . Can you post your battery stats and crd7 change log?
[Samsung Galaxy S8 Questions and Answers] picaadi:
Usually i get about 5 h sot...always on turned on, will make screenshot tonight when its discharged
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Ok what about crd7 change log? You can find it in the update menu as "last update info"
[Samsung Galaxy S8 Questions and Answers] Vagosd:
No I didn't mean that . In settings go to check for update . Thrash option in this menu describes all changes from the last update . Take a screenshot from this to see if it mentions this bug
[Samsung Galaxy S8 Questions and Answers] picaadi:
Its greyed out....anyways i dont have the bug...airplane mode is not drainig baterry,fast charging works, im not sure yet if baterry is better than nougat on crd7...on the other oreo versions it was horrible for me....have to further see
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Even if it's like nougat it will be good for me . Anyway these are very good news . Let's see how long it will take to reach other regions
[Samsung Galaxy S8 Questions and Answers] lamecus:
Well,

After all I'm a lucky guy, because my battery life is great on my G950FD.

I can get an average of 30Hours of working battery!

Please check some details bellow:

NO ROOT

AOD = Off

INFO SW:

OREO 8.0.0

samsung experience = 9.0

baseband = G950FXXU1CRC7

compilation= R16NW.G950FXXU1CRC7

SW service provider = SAOMC_SM-G950F_OXM_BRI_OO_0021

ce0571715ea6234ec0d

BRI/BRI/BRI

security patch = 1 of march 2018
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I can't say it's perfect . It's near perfect. From 30 hours standby you got only 2:50 SOT . Your battery curve should be somewhat horizontal (especially with aod off) when on standby but it keeps dropping even without using it . With nougat and this usage I would have 30-35% battery left
[Samsung Galaxy S8 Questions and Answers] Tanak Vagu Avantang:
Just installed CRD7 and let's see how it goes.
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I also installed it but I think there is no change :(
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I noticed that although I installed the update there is that service provider software that remained the same . I think that this is the buggy thing because our problem is SIM card related . The question is , was it supposed to remain the same ? Or it should be updated but it's stuck ?? If we put another carrier SIM it may be unstuck and be fixed ?
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Just went to Samsung service and they told me that they are aware of the problem and we have all to wait for the update fix . It's 3 months now with this bug and it's too bad for a flagship phone . And they want to be competitors with Apple.... Apple fixes this kind of bugs within a week ...
[Samsung Galaxy S8 Questions and Answers] rajone9:
you can't compare the Android system, which is installed on hundreds of phones to Apple. never
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I am not saying about the system . I am saying about samsung support . It's very bad to have such a serious bug and after the 3rd Oreo update not to be fixed ... It's ruining my experience and I don't think at this price I should tolerate it. A big X to Samsung from me .
[Samsung Galaxy S8 Questions and Answers] rajone9:
Android is not Samsung, iOS is Apple, that's the simple difference...
[Samsung Galaxy S8 Questions and Answers] Vagosd:
That's true but the bug we are talking is for the S8 not for all androids. And Samsung is responsible for releasing buggy updates . If they cannot meet high software standards they may offer vanilla android one and we will be all happy .
[Samsung Galaxy S8 Questions and Answers] rajone9:
not only s8, absolutely.

https://forums.oneplus.com/threads/battery-drain-after-oreo.739612/

https://forums.oneplus.com/threads/battery-draining-super-fast-after-oreo-8-0-update.750237/

https://www.reddit.com/r/oneplus/comments/7jktz3/oneplus_5_with_oreo_beta_extreme_battery_drain_by/

https://www.reddit.com/r/oneplus/comments/7h2j0w/op5_oreo_beta_battery_drain/

just some examples
[Samsung Galaxy S8 Questions and Answers] picaadi:
I'm also dissatisfied with this oreo release, nougat was way better
[Samsung Galaxy S8 Questions and Answers] Vagosd:
The fact is that we don't have to disable half of the phones services to enjoy a decent battery life. All those services you disable are not buggy . The bug is in the modem software which keeps the data active even on standby and airplane mode . Try to use your phone disabling 4g , only Wi-Fi. Then the battery is a beast.
[Samsung Galaxy S8 Questions and Answers] rajone9:
for me battery is no good even only WiFi with Oreo compared to Nougat

Inviato dal mio SM-G950F utilizzando Tapatalk
[Samsung Galaxy S8 Questions and Answers] Vagosd:
You have to disable data form the top bar switch because even on Wi-Fi it consumes battery . The goal is the battery curve to be horizontal during the night . With data off it gets horizontal
[Samsung Galaxy S8 Questions and Answers] rajone9:
I always disable data when I enable WiFi since when I started to use Android with S3

Inviato dal mio SM-G950F utilizzando Tapatalk
[Samsung Galaxy S8 Questions and Answers] Vagosd:
And with data off and no airplane you get drain ? Mine is not draining with data switch off and WiFi. But in airplane always drains .

By the way data/WiFi alternation was not meant to work like you do . You should have both enabled and device use preferably WiFi when available .
[Samsung Galaxy S8 Questions and Answers] Tiongkia:
Mine is ok. Battery is slightly worse than nougat. 1 day usage with 3 to 4 hours of sot. 4G OR WIFI all day long.

No root. All stock. Using bk manager to disable 70% of stock apps and greenify.
[Samsung Galaxy S8 Questions and Answers] Vagosd:
As we said in previous posts the bug we are referring affects standby times not endurance so much . 3to4 hours is not so ok . I have about the same now but in nougat I was getting 5to6 sot. And after 24 hours I had about 40 % left now I charge every 20hours .
[Samsung Galaxy S8 Questions and Answers] picaadi:
Guys i had worse baterry on 8.0 ...but now i found the solution, go to the application menu....tap on every app in there , enter the battery menu for each and every app and disable use app in the background..... its incredible, the SOT that i had on nougat its the same on oreo now.....trust me this does give wonder results.....
[Samsung Galaxy S8 Questions and Answers] Tiongkia:
That you and the rest. I am ok. Previously on nougat I have 4 to 4.5 hours sot with full day 4g or wifi. Now is slightly worse off but i am fine with it.
[Samsung Galaxy S8 Questions and Answers] picaadi:
Baterry is monster good now.
[Samsung Galaxy S8 Questions and Answers] Tiongkia:
Thanks in advance. Let me try.
[Samsung Galaxy S8 Questions and Answers] picaadi:
Its monster baterry now.....incredible
[Samsung Galaxy S8 Questions and Answers] Vagosd:
You are asking for more sot but I was referring to standby .

You have 46% after 9 hours unplugged and it's a beast ???

Try to not touch your phone after a full charge and you will see how many hours it lasts ... that's the problem
[Samsung Galaxy S8 Questions and Answers] picaadi:
I have 2 % battery drop from 00:00 to 7 :00....i think its monster standby ....without always on during this period.

Standby was never a problem for me..... i didnt get this Sot on nougat....just try those changes i told a post back....it does magic
[Samsung Galaxy S8 Questions and Answers] gliz:
Hi, I noticed that my Oreo (I upgraded to Oreo just 3 days ago) battery drain had gone after turning off background usage of Android OS and Outlook (if you have).

Notice when you open battery usage, wait until it shows Android OS, press it and turn off its "App background usage" or something like that toggle, same with Outlook.

After doing it, it does not take effect instantly but after using for some hours and had some full charges, the drain had gone, before it was draining 100% fast to 97% in less than 30mins while screen is turned off, now it does not anymore, just the same with what I had with Nougat. (still 100% like after around 1hr or more with default mode - optimized).

You would think that disabling Android OS background would give bad results - I thought so too but it doesn't. They would not enable turning it off it would, won't they? As well as Outlook, I use Outlook app for my work and thought turning off background processing won't give me notifications anymore but it still did!.. I wonder what kind of background it suppresses as it it still updates automatically as long as i am connected to the internet whether data or wifi.

I hope this works for you or for anyone as well. Just remember effect on mine is not instant, I had like 2 cycle charges before I noticed the effect.

Thanks,

gliz
[Samsung Galaxy S8 Questions and Answers] Vagosd:
We are not supposed to close every service to have a decent battery life. This is not a smartphone . They have to fix bugs so the device optimize battery . We keep waiting for update
[Samsung Galaxy S8 Questions and Answers] gliz:
That's right, this should be fixed with a permanent appropriate solution by them.
[Samsung Galaxy S8 Questions and Answers] Blaster30:
galaxy s8

When I read that someone has SOT 4hous + after 36hour of using and still 40% , I'm sad.

My SOT is max 3 - 3,5h. When is mobile in standby it's cost 0,8% of battery per hour. When is displey on It's 1% per 2,5min. So when I unplug mobile in 10pm, at 5am when I wake up is battery on 94% , when I get to work at 6am it is 90% (with 3min SOT) and after work at 3pm is battery approx 60% and SOT 1h10min.

- VolLTE off, only 3G/2G, 1mail sync every 4hours, resolution FHD+, bluetooth on, wifi on, locationon - economical mode(wifi and mobile site), AOD on...

I would like to have also SOT 4h after 30+hour of using and have still 40% :(
[Samsung Galaxy S8 Questions and Answers] MrSteelX:
as stupid as this sounds, do you have an sdcard installed in phone. After taking out sdcard, I get better battery drain to under .7% an hr
[Samsung Galaxy S8 Questions and Answers] Blaster30:
No I don't have sdcard.
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Now there is a new firmware out (CRED) released for Germany and other countries. Let's hope this LTE bug is gone . Is there anyone who have it installed ? Maybe could share the changelog.
[Samsung Galaxy S8 Questions and Answers] tosunkaya:
My phone is from Germany, but im on Turkey. Installed the latest CRED. There's wasn't any 4G bug. You can try your chance.
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Didn't it drain battery at night when on airplane mode ???
[Samsung Galaxy S8 Questions and Answers] scotteb:
I've seen this posted many times over the years but I could never figure out why. Why in the hell would you turn your phone on airplane mode overnight!!?? If you dont want someone calling or messaging, turn on do not disturb.... Here I am once again, some one asked about airplane mode......This just seems odd, as you phone updates and does a backup at night or at least mine always did. Not criticizing just curious what the appeal is of making your device useless during that period of time by turning on airplane mode. Best thing to do is turn off all background data you don't need to use on each app and to not have FACEBOOK installed/enabled, use the browser!! I had a large drain when that app was enabled. I can routinely get 4hr sot and more on times. There has been a battery hit on this god dang oreo though. Nougat would yield me 6-7 hrs sot!! Hope you can fix your battery life. reset your phone and dont restore apps, do them a couple at a time and leave it to see if drain still exists. then add more apps and repeat until you find the culprit. (i have dex and bixby disabled along with a few other apps)
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I need airplane mode because I leave my phone next to me (Because I use it as alarm) and don't want the antenna to burn my mind during the night . Does it seem too odd for you ?

I am referring to a specific bug that came with Oreo. It's not my setup but the firmware itself .
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Good news ! The latest CRED update fixes the battery a lot and no airplane mode drain ! At last after 3 updates and 3 months with battery drain ,they figured out how to fix it .
[Samsung Galaxy S8 Questions and Answers] timo74:
bug is always present….

try only with gsm active in standby, screen-off, after a night : battery drain is still present ! from 1 % /h. to 2% /h.

If i switch from 4g/LTE to 3G ( data connection OFF , only gsm ) , battery doesn't drain ( 0,3 % / h. )
[Samsung Galaxy S8 Questions and Answers] Vagosd:
That's true but they did take almost 3 months to fix airplane mode drain which a crystal clear bug ...

Do not expect them to notice what you are saying because its network and coverage dependant and everyone will say try a factory restore ....
[Samsung Galaxy S8 Questions and Answers] timo74:
Standby ( gsm only ) draining is also crystal clear , the same bug in airplane mode : in this mode it can also consume 20% in one night

this consumption is not present in the Android battery statistics

the LTE modem is buggy, they fixed the battery drain at 50%
[Samsung Galaxy S8 Questions and Answers] Vagosd:
This how they make you feel your device needs an upgrade to their latest s9 . Imagine how bad it would be if S8 had better battery life than S9 .... everyone even now would buy S8 for half the price .

After a ton of messages in forums they were forced to fix the airplane mode but now you need to prove the bug which is more difficult ...
[Samsung Galaxy S8 Questions and Answers] linom:
I think someone could try porting the nougat modem/radio package to current build and check for standby drain, if this works. But a root is required and I dont want to root my phone for this.
[Samsung Galaxy S8 Questions and Answers] Vagosd:
You cannot change anything without root . But we as users are not supposed to find the solution . Samsung have to provide the fix and make battery great as it was on nougat . Imagine that even if the fix is simple not even 1% of S8 users will read it here and continue using the phone with the bug .
[Samsung Galaxy S8 Questions and Answers] timo74:
To flash Nougat's modem (into Oreo's build ) with Odin requires Root?
[Samsung Galaxy S8 Questions and Answers] Vagosd:
I'm not 100% sure but I think that every change to the firmware needs root since you have to unlock the bootloader . But even if you do this (if it will work at all) I think you will face more problems
[Samsung Galaxy S8 Questions and Answers] kayrog:
Yeah I am going through this to. I was going to replace it using the insurance I have on my phone. I thought the battery was dying or something. Im charging it like 4 times a day and yeah, its so hot it burns my hands to hold it. Taking out of case will cool it down but something is very, very wrong. If they dont fix this quick, they just lost a die hard fan.
[Samsung Galaxy S8 Questions and Answers] bulblog:
Should i update this?
[Samsung Galaxy S8 Questions and Answers] Vagosd:
Latest update is the smoothest oreo built . And battery is quite good but the is headroom for improvement. I suggest you update
[Samsung Galaxy S8 Questions and Answers] SoftWord:
custom roms have battery drain too bug?
[Samsung Galaxy S8 Questions and Answers] kierownikk:
My phone, Galaxy S8 BTU version UK, is suffering from increased battery drain since last update too.

Not installed any new apps or anything that could drain my battery. On standby, not being used at all it is dropping 5% per hour even in Safe Mode. Cleared phone's cache, apps cache. Tried safe mode. Still the same. Before last update it would drop 5-7 percen over night. I left my phone with 35% battery at 10pm last night, checked it at 1am and it was down to 20%.

My battery life used to be really good, now I can't make it through the day.

Security patch level 1st August.

Now, with mobile data disabled my battery life comes back to normal. I thought that maybe there's an app that's using mobile data in the background and that results in higher battery usage, so I disabled background data on everything I could but that didn't help at all.

Only turning off mobile data, or switching to airplane mode fixes the battery drain porblem.

I'm so frustrated at the moment.
[Samsung Galaxy S8 Questions and Answers] ragerino:
I am having the same issue.

I belive it has more to do with the release of the S9 model. Samsung wants you to buy a new phone!