Galaxy S25 and S24 owners report severe battery drain after April update

• Galaxy S25 and S24 devices are experiencing excessive battery drain and overheating.
• It appears that the issue started after the April 2026 security update.
• The problem could be connected to Knox Matrix.

Samsung’s April 2026 security update started rolling out to the Galaxy S25 series on April 6. The update later expanded to the Galaxy S24 series around the middle of the month. Since then, there’s been a growing number of reports of battery drain and overheating. Some users believe they may have found the culprit.

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