- Samsung Galaxy S24 and S25 users are experiencing significant battery drain and overheating issues following the latest OneUI 8.5 update.
- A WhatsApp bug has been identified as a potential cause of the overheating, as it was found to be stuck in a background loop.
- Users have reported that the OneUI 8.5 July security patch update (Build: S938BXXSBCZG3) is causing excessive battery drain.
- Samsung has not yet announced the root cause of the overheating and battery drain issues.
- Users have noted that their devices feel warmer than usual and that they need to charge their phones more frequently.
- Similar heating issues were reported in April for the Samsung Galaxy S25 and S24.
- Users are advised to check for updated firmware and to update all installed apps to mitigate these issues.
- Samsung regularly releases maintenance updates that include improvements for battery management, security, system stability, and thermal performance.
Samsung Galaxy S24 and S25 Ultra owners are reporting severe battery drain and overheating issues linked to the OneUI 8.5 update. Users have noted that the WhatsApp backup bug is causing backups to get stuck in a background loop, leading to excessive battery consumption even when the devices are idle.1234510
Complaints have surged since the update, with many users stating that their battery life has been significantly shortened. One user mentioned that the OneUI 8.5 July security patch update (Build: S938BXXSBCZG3) is particularly problematic, causing them to charge their devices more frequently throughout the day.
“Most common complaint: battery life has been significantly shortened,” said one user, highlighting the frustration among the community. Additionally, multiple users have reported that their devices feel warmer than usual, indicating potential overheating issues.67
Samsung has yet to officially announce the root cause of these problems, but users are advised to check for updated firmware, update all installed apps, and reduce unnecessary background processes. “If the problem continues even when you use the PC lightly, this could indicate that a background process or a badly optimised app is consuming too many of the system’s resources,” warned a tech expert.9
Samsung regularly releases maintenance updates aimed at improving battery management, security, system stability, and thermal performance, but the current situation has left many users concerned about their devices' performance.
“Users have noted that the OneUI 8.5 update is causing excessive battery drain, with many needing to charge their devices more frequently. Samsung has yet to announce the root cause of these issues, which have been exacerbated by a WhatsApp backup bug causing devices to overheat during idle time.”
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