A software update is supposed to improve your device, but what happens when installing one makes you wish you hadn’t?

That is the dilemma facing some Samsung Galaxy S24 and S25 owners who report significantly worse battery life after installing One UI 9.

The complaints remain unconfirmed as a software defect. Still, they highlight a problem that is persistent across the consumer technology industry: updates can introduce new problems even as they promise better performance, new features, and improved security .

For users, experiences like these can make future updates harder to trust.…