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

jorgewmsn

Member
Aug 10, 2009
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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.
 

Leon

Senior Member
Dec 31, 2012
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divna.tech
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

Senior Member
Dec 12, 2011
644
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Flanders
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 !
 

rororo85

Member
Aug 28, 2017
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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.
 

Bogeyof

Senior Member
Nov 24, 2011
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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

Senior Member
Dec 12, 2011
644
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Flanders
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.
 

hdnick

Member
May 16, 2005
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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...