How to fix a Galaxy S9 with battery drain issue after installing Android Oreo update

We’ve received reports from some #GalaxyS9 owners that the battery of their devices seemed to have drained faster after installing an update for Android Oreo. We know that the S9 comes pre-installed with Android Oreo so these updates must be carrier-specific updates or minor patches for Oreo released by Samsung or Google. Regardless of what updates you install though, the general solutions for this type of issue does not vary much. If you think your S9 has been draining battery power…

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