Samsung’s latest July security update is drawing complaints from some Galaxy S25 Ultra and Galaxy S24 Ultra owners, who say the patch has triggered heavy battery drain and unusual heat buildup. The update was expected to improve the overall experience, but a number of users report the opposite after installing it.

According to these reports, affected phones are losing power faster than normal during regular use. Some users also say their devices are running noticeably hotter, raising concerns that the July patch may be affecting background activity, power management, or overall system efficiency on the two flagship models.

Another issue mentioned by some owners is slower charging after the update. While the problem does not appear to affect every device, the combination of battery drain, overheating, and reduced charging speed has made the latest software release frustrating for users who installed it expecting routine security improvements.

For now, the complaints suggest the problem may be linked to the recent software patch rather than hardware changes, especially because the issues reportedly began after the update. If Samsung determines the July release is responsible, the fix would likely come through a follow-up software update.