Oreo update for S7 causing battery drain

  • 1
  • Question
  • Updated 1 month ago
The Oreo update for the S7 is causing a battery drain on my phone
Photo of Daniel Ponziano

Daniel Ponziano

  • 70 Points

Posted 1 month ago

  • 1
Photo of Goran

Goran, Mobile Master

  • 97,868 Points 50k badge 2x thumb
It's been known to happen. You can back up your phone using smart switch and then hard factory reset your phone. That usually fixes major update battery drains. Emphasis on usually. It might bd a bug with the update as well. Give it a couple days for your phone to readjust to your usage and if it's still draining badly let us know. At that point either it cm be passed on to a Koodo rep or you can skip a step and contact Samsung about it.
Photo of Paul Deschamps

Paul Deschamps, Mobile Master

  • 203,968 Points 100k badge 2x thumb
Great minds think alike, it's almost word for word what I wrote lol
Photo of Dennis

Dennis, Mobile Master

  • 196,910 Points 100k badge 2x thumb
And lesson learned to not update unless something is broken
Photo of Paul Deschamps

Paul Deschamps, Mobile Master

  • 203,968 Points 100k badge 2x thumb
It was a major update as as such you should perform a factory reset while the phone is fully charged and plugged in. Many times during a major update apps and or games can be not optimized properly and a foctory reset can solve this. Also it will take a week or two for battery life to even back out as it did when the phone was brand new.
You can first try and clear your system Parti on cache this can sometimes work and you won't need a factory reset if your worried about doing that but really most things you can back up and sync again really quickly after a factory reset between your google and Samsung accounts.
Photo of rikkster

rikkster, Mobile Master

  • 68,504 Points 50k badge 2x thumb
I would wipe the cache partition, first. The cache partition contains temporary files, logs and file fragments from the various applications on your Android device. There may be files that are left behind from a previous Android update. If that happens, your device could be trying to access stored files that are not meant for your current version of Android. This is also a remedy for fixing odd battery anomalies such as this, that appear after a system update.

Monitor performance and if needed, perform a factory reset.


From the same menu, you can perform a factory reset (wipe data/factory reset), but as Goran mentions, be sure to make a backup prior to factory resetting the S7.