Samsung Galaxy S24 Ultra & S25 Ultra July 2026Â
Samsung’s latest July 2026 Android security update is creating unexpected problems for some Galaxy S25 Ultra and Galaxy S24 Ultra users. Instead of improving device security, the update has reportedly introduced severe battery drain, excessive heating, and slower charging speeds for a growing number of flagship smartphone owners.
The issue has quickly gained attention across Reddit and Samsung’s official Community forums, where affected users say their devices began behaving abnormally immediately after installing the latest software update. While Samsung has yet to acknowledge the problem publicly, community discussions suggest the bug may be affecting a significant number of premium Galaxy devices.
Key Developments
- Samsung’s July 2026 security update is linked to battery drain complaints.
- Galaxy S25 Ultra and Galaxy S24 Ultra users are the most affected.
- Some users report idle battery drain of 5–7% per hour.
- Devices are running noticeably hotter than before.
- Several users also report reduced charging speeds.
- Samsung has not issued an official statement or fix.
What Exactly Is Happening?
According to multiple user reports, battery performance has deteriorated dramatically after installing the July security patch.
One Galaxy S25 Ultra owner reported:
- Battery dropped from around 85% to nearly 5% in less than half a day.
- Only around 2 hours of screen-on time were recorded.
- The phone lost approximately 5–7% battery every hour while idle, even without active use.
Galaxy S24 Ultra owners have reported similar experiences, saying their phones previously lasted an entire day but now require charging much earlier.
Three Major Issues Reported
1. Severe Battery Drain
The most common complaint involves unusually high battery consumption, even when the device is idle.
Many users noticed:
- Overnight battery loss
- High background power usage
- Increased daily battery consumption
Some screenshots shared online show daily battery usage increasing from around 80% before the update to more than 140% afterward, despite reduced screen usage.
2. Overheating
Several users also report that their Galaxy phones feel much warmer than usual.
The heating appears during:
- Idle operation
- Background processing
- Charging
- Routine daily tasks
Although Samsung has not confirmed the cause, the extra background activity may explain the higher device temperatures.
3. Slower Charging Speeds
A smaller group of users says charging has become noticeably slower following the July update.
While not everyone is experiencing this problem, reports suggest charging performance has declined for some affected devices.
Possible Cause: WhatsApp Encrypted Backup
A potential explanation has emerged from discussions on Samsung Community and Reddit.
Several users believe the July update may leave WhatsApp’s end-to-end encrypted backup process stuck in a continuous loop.
If that happens:
- WhatsApp repeatedly attempts to complete the encrypted backup.
- Background activity continues without stopping.
- Battery drains rapidly.
- Device temperature rises.
- Charging may appear slower because of the constant power consumption.
This explanation has not been officially confirmed by Samsung or WhatsApp.
Temporary Workarounds Shared by Users
Some affected users say these steps reduced the problem:
- Cancel the stuck WhatsApp encrypted backup.
- Disable end-to-end encrypted backups temporarily.
- Complete a fresh backup.
- Re-enable encrypted backups afterward.
However, these solutions have not worked for everyone, and users should remember that disabling encrypted backups temporarily reduces an additional layer of backup protection.
Samsung Has Not Responded Yet
As of July 29, 2026, Samsung has not:
- Confirmed the issue
- Explained the root cause
- Announced a software fix
- Published an official advisory
Users have reportedly submitted feedback through Samsung Members and Community forums, but no official response has been released.
Background
This is not the first time Samsung flagship devices have encountered battery-related problems after a software update.
Earlier in 2026, several Galaxy S24 Ultra and Galaxy S25 Ultra owners also reported abnormal battery drain and overheating following another software release. Samsung later addressed those issues through subsequent software updates.
The latest reports suggest a similar situation may be unfolding again.
What It Means for Galaxy Users
If your Galaxy S24 Ultra or Galaxy S25 Ultra continues to deliver normal battery life after installing the July update, there’s no indication that every device is affected.
However, users experiencing:
- Rapid battery loss
- Excessive heating
- Slow charging
may want to:
- Check WhatsApp backup activity.
- Monitor battery usage under Settings.
- Install future Samsung updates as soon as they become available.
What Happens Next?
Samsung is expected to investigate user feedback before issuing an official response.
Possible next steps include:
- A maintenance software update
- One UI hotfix
- Updated WhatsApp compatibility patch
- Official troubleshooting guidance
Until then, affected users may need to rely on temporary community-recommended workarounds.
Conclusion
Samsung’s July 2026 Android security update appears to have introduced unexpected problems for some Galaxy S24 Ultra and Galaxy S25 Ultra users. Reports of rapid battery drain, overheating, and slower charging continue to grow, although Samsung has not officially confirmed the issue.
Community discussions point toward a possible interaction with WhatsApp’s encrypted backup process, but users should wait for an official software fix before drawing definitive conclusions.
Key Highlights
- Samsung July 2026 update is linked to battery drain reports.
- Galaxy S25 Ultra users appear heavily affected.
- Galaxy S24 Ultra owners report similar issues.
- Idle battery drain reaches up to 7% per hour for some users.
- Devices are reportedly overheating after the update.
- Some users notice slower charging speeds.
- WhatsApp encrypted backup may be involved.
- Samsung has not confirmed the root cause.
- No official fix has been released yet.
- Users are advised to monitor battery usage and await updates.
FAQs
1. Why is my Samsung Galaxy S25 Ultra battery draining quickly after the July 2026 update?
Many users report rapid battery drain after installing Samsung’s July 2026 security update. Community discussions suggest the issue may be related to background processes, particularly WhatsApp’s encrypted backup feature. Samsung has not officially confirmed the cause.
2. Which Samsung phones are affected?
Most reports currently involve the Samsung Galaxy S25 Ultra and Galaxy S24 Ultra. It remains unclear whether other Galaxy models are experiencing the same issue.
3. Is the July 2026 Samsung update causing overheating?
Some users report their devices becoming significantly warmer after installing the update. While overheating appears alongside battery drain, Samsung has not officially verified the issue.
4. Does WhatsApp cause the battery drain?
Some users believe WhatsApp’s end-to-end encrypted backup process becomes stuck after the update, causing continuous background activity. This is a community-discovered workaround and has not been confirmed by Samsung or WhatsApp.
5. Has Samsung released a fix?
No. As of July 29, 2026, Samsung has not announced an official fix or acknowledged the reported issues publicly.
6. Should I install the July 2026 Samsung update?
The update includes important Android security improvements. However, if you experience battery drain or overheating afterward, monitor battery usage, check WhatsApp backup activity, and watch for future Samsung software updates that may resolve the problem.
