Is your Samsung affected?

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If you have a Galaxy S25 or S24 phone, you may have a serious problem. Samsung’s most recent security update has reportedly left owners of these recent flagships with a daily nightmare as batteries drain rapidly and devices start to overheat.

Samsung users are not alone, with Google’s Pixel owners also reporting “severe” battery drain after the most recent security update. Given that, one might assume this is a generic Android problem, but it seems it may not be linked.

Android Authority reports that most Galaxy S25 and S24 users may be affected — at least according to its own reader survey. “The exact cause of the issue is still unknown,” the website says, “but it requires immediate attention from Samsung. The company has yet to acknowledge the issue, leaving users without a fix.”

It’s not yet clear what has caused these latest issues, with Meta apps flagged as one potential cause. But the other culprit could be Samsung’s own Knox Matrix platform, which provides Apple-like security across the Samsung ecosystem. This has recently been enhanced, and so could be a logical source of such issues.

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"It’s truly tormenting when you install an update," Android Authority says, “only for it to ruin an important aspect of your phone, such as the battery.” Some users are warning that their batteries drain within just a few hours, albeit most will see an impact but not one as crippling to their daily phone use as this.

Separately, there are also now reports that Samsung has issued a “surprise" second security update for users this month, with Galaxy S26 and S25 phones affected. No suggestion yet this addresses the battery issues, with additional security fixes a more likely explanation for a double update in April.