TL;DR Some Galaxy S24 users are reportedly facing a significant dip in battery life after the recent One UI 9 update.
Multiple Galaxy S25 owners are also reporting similar problems after Samsung’s Android 17-based update.
Samsung recently started rolling out the One UI 9 update to the Galaxy S25 and Galaxy S24 series, introducing features like Call Brief and My FanCam.
After a brief wait, Samsung began rolling out the One UI 9 update to the Galaxy S25 series , followed shortly by the Galaxy S24 lineup. While the update adds features like Call Brief and My FanCam, it may also be hurting battery life.
A report from a Galaxy S24 Ultra owner on X shows battery life declining 95% with only 3 hours and 15 minutes of screen-on time (via SammyFans ). This is a steep drop, even with heavy social media use and being on mobile data the entire time. Samsung later contacted this user to schedule a service appointment at a nearby store.
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