Galaxy S8+ G955F Exynos battery drain on stock oreo firmware (XXU1CRAP) ?

[jorgewmsn]

I can confirm that.
Before the Oreo update I lost around 3-4% of charge over night, now it´s at almost 20% without anything obvious draining the battery. The phone is in deepsleep all the time...
Samsung knows how to ruin their devices with firmware updates.

Sorry to "read" that.
But since october Im having this exactly same problem even with the nougat .

I dont know whats going wrong with Samsung updates or my phone, but then issue appear after an update.

 

[wtr_dhd]

I did a factory reset just to make sure.. The battery drain is still not solved. This is annoying.

I'm considering to downgrade to Nougat again

 

[Leon]

I always had 2h - 3h sot so I don't really know what u talking about. Battery life is so sad on this device. Now oreo seems to drain 1%h. and I have 2h of sot if i don't play much with it. Also no Bluetooth or whatever. And everything is in sleep mode.

 

[wtr_dhd]

I always had 2h - 3h sot so I don't really know what u talking about. Battery life is so sad on this device. Now oreo seems to drain 1%h. and I have 2h of sot if i don't play much with it. Also no Bluetooth or whatever. And everything is in sleep mode.

Before I went to 8.0 I had like 6+ hours SOT with intensive use.. It is a 3500mAh device, I think it's normal to get at least 5+ hours SOT !

 

[Life Companion]

Here is my CRAP S8+
8h SOT
Movies
Whatsapp
FB
Songs
Nd much more

 

[wtr_dhd]

Here is my CRAP S8+
8h SOT
Movies
Whatsapp
FB
Songs
Nd much more

on Oreo ? Exynos or Snapdragon ?

I am so confused.. why on my device I can hardly get half of that SOT

 

[Life Companion]

Deleted

 

[Life Companion]

on Oreo ? Exynos or Snapdragon ?

I am so confused.. why on my device I can hardly get half of that SOT

Exynos 955FD
Oreo CRAP OFFICAL

 

[wtr_dhd]

Exynos 955FD
Oreo CRAP OFFICAL

:crying:

 

[Blubber120]

For me I found out what Is draining my battery, it's the Facebook messenger. This thing sucks.

 

[Bruno Gifone]

great for me , 1500mAh of Battery SOT , 7 - 9 hours every day.

 

[wtr_dhd]

How do I safely downgrade back to Nougat without tripping knox ?

 

[rororo85]

Your Knox will not be triggered till u use stock Samsung and Odin.
If you are on a multicsc, flash a non multicsc, then flash back the nougat multicsc you are targeting to.

 

[Micha_Schy]

Isn't there a new bootloader which came with Oreo?
In that case a downgrade isn't possible.

https://www.xda-developers.com/samsung-galaxy-s8-note8-bootloader-odin/

Was the update with the January security patch the latest based on nougat?

 

[wtr_dhd]

I succesfully downgraded to Nougat again. Hopefully problem solved.

 

[Bogeyof]

Yippieh, Battery Drain in Flightmode is gone with new update CRB7, now again about 2% over night, with CRAB was around 12-13%. Seems also to have less drain in standby with data enabled, so thumps up for CRB7 for now.

Gesendet von meinem SM-G955F mit Tapatalk

 

[wtr_dhd]

Yippieh, Battery Drain in Flightmode is gone with new update CRB7, now again about 2% over night, with CRAB was around 12-13%. Seems also to have less drain in standby with data enabled, so thumps up for CRB7 for now.

Gesendet von meinem SM-G955F mit Tapatalk

Good to hear. I will just wait until I get CRB7 via OTA then.

 

[rororo85]

Isn't there a new bootloader which came with Oreo?
In that case a downgrade isn't possible.

https://www.xda-developers.com/samsung-galaxy-s8-note8-bootloader-odin/

Was the update with the January security patch the latest based on nougat?

you missed the last 3 rows of the article

 

[Cave_diver]

The new Oreo release fixed the battery issues for me. Thank you Samsung for making it right.


Sent from my SM-G955F using Tapatalk

 

[hdnick]

The new Oreo release fixed the battery issues for me. Thank you Samsung for making it right.


Sent from my SM-G955F using Tapatalk

Nope, I've the latest official release, and I've the airplane mode battery drain issue overnight: 8h - 8%

With Nougat the drain was 1% overnight...