It’s unusual for your Galaxy S24 Ultra to completely shut down on its own when the battery is still at 45%. Here are some potential causes and troubleshooting steps to help identify the issue:
1. Software Glitch - Sometimes, a bug or glitch in the system can cause the phone to shut down unexpectedly. - Solution: Make sure your phone’s software is up to date. Go to Settings → Software Update → Download and Install.
2. Battery Calibration Issue - The battery percentage might not be reporting correctly, even though it showed 45%. The phone might have drained completely without accurately displaying it. - Solution: Fully drain the battery (until the phone turns off), then charge it to 100% without interruptions. Repeat this process a couple of times to recalibrate the battery.
3. App or System Crash - A rogue app or system process might have crashed, forcing the phone to shut down. - Solution: Check for recent apps that might be consuming too much power by going to Settings → Battery and Device Care → Battery Usage. Uninstall or update any suspicious apps.
4. Overheating - Phones can shut down as a protective measure when they overheat, even if the temperature doesn’t feel too hot to the touch. - Solution: Check if your phone feels warmer than usual. Avoid using power-intensive apps like games for extended periods and keep the phone out of direct sunlight.
5. Battery Saver or Power Mode - Some settings in Battery Saver or Adaptive Power Saving might be too aggressive, causing unexpected shutdowns. - Solution: Go to Settings → Battery and Device Care → Battery → Power Saving Mode, and check if anything unusual is enabled. Try disabling adaptive battery features temporarily.
6. Corrupt Cache - Corrupt system files or cache data can lead to instability. - Solution: Try wiping the system cache. - Turn off the phone. - Press and hold the Volume Up and Power button until the Samsung logo appears. - Use Volume buttons to navigate to Wipe Cache Partition and confirm with the Power button.
7. Hardware Issue - Although rare, hardware issues such as a faulty battery or motherboard could cause sudden shutdowns. - Solution: If this happens again, it might be worth visiting a Samsung service center for diagnostics.
8. Third-Party Accessories - Using non-certified chargers or accessories can sometimes interfere with power management. - Solution: If you’ve recently started using any new chargers or accessories, try switching back to the original Samsung charger.
Since the phone turned on fine afterward, it might have been a one-time issue. However, if the shutdown occurs again, you should investigate further. I faced similar challenge when working as a QA at Finoit and point 6 was the root cause of my problem.
