Exact model-family answer directory
Samsung Galaxy S24 troubleshooting
Samsung Galaxy S24 (SM-S921*): the compact AI Galaxy; what owners run into; how to approach a fault; finding your model and software; making a small battery last; when to see Samsung, and a fix for each symptom below.
- The compact AI GalaxyThe standard S24 is the small phone of the 2024 line, with a flat aluminum frame and the first Galaxy AI features. Because its battery is the smallest of the family, owners find that a few settings decide whether it lasts a day or runs out in the afternoon.
Battery drainNot chargingOverheatingWi-FiNo serviceBluetooth
Samsung · microphone
Samsung Galaxy S microphone does not work
Open record Samsung · battery drainSamsung Galaxy S24 battery drains too quickly
Open record Samsung · biometric unlockSamsung Galaxy S24 biometric unlock is not working
Open record Samsung · camera blurrySamsung Galaxy S24 camera is blurry, shakes or will not focus
Open record Samsung · overheatingSamsung Galaxy S24 gets hot or shows a temperature warning
Open record Samsung · touchscreenSamsung Galaxy S24 screen or touch input is not working correctly
Open record Samsung · storage fullSamsung Galaxy S24 storage is full or the device cannot install updates
Open record Samsung · not chargingSamsung Galaxy S24 will not charge or charges slowly
Open record Samsung · Wi-FiSamsung Galaxy S24 will not connect to Wi-Fi or keeps disconnecting
Open record Samsung · BluetoothSamsung Galaxy S24 will not pair or stay connected over Bluetooth
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Which units this covers, and how to tell yours is one of them
- Model numbers and patterns
- SM-S921*
Published specification
What is true of this model and changes how you fix it
- What owners run intoWith a smaller cell than the Plus, the S24 shows battery drain sooner when the refresh rate is on 120 hertz, when the always-on display is enabled or when a social app refreshes in the background. Heat appears during gaming and charging together, and the phone throttles to protect itself.
- How to approach a faultOpen Battery in Settings and look at usage by app, then set the refresh rate to adaptive and restrict background use for heavy apps. If drain continues after that, check Battery health in the Samsung Members app.
- Finding your model and softwareSettings, About phone shows the model name and One UI version. The compact S24 shares its software with the larger models, so a fix that Samsung ships for the Plus usually applies to it too.
- Making a small battery lastWith a 4,000 milliamp-hour cell, the S24 benefits from adaptive refresh rate, a dark theme, location set to While using the app and the always-on display switched off. Samsung's Battery settings list the apps that use the most, and putting rarely used apps to sleep stops them from waking the phone.
- When to see SamsungIf the phone shuts off above 20 percent, swells or loses more than a third of its charge in an hour of standby, the battery is worn and Samsung can replace it. Back up first and make sure Find My Mobile is on so the phone is protected while it is at a service point.
- What to avoidDo not use the S24 in a case while gaming and charging at once, do not leave it on a car dashboard, and do not install battery-saver apps that kill background tasks, since they confuse Samsung's own power management. If you want a longer-lasting day, use the built-in Battery settings and put rarely used apps to sleep instead.
Manufacturer support for this product line. Samsung Support — Mobile device support. Official Galaxy model manuals, diagnostics, updates and repair support.
Also read for this model. Samsung Support — Samsung Support.
Exact questions
Questions that only have an answer for the Samsung Galaxy S24
How long should an S24 battery last?+
A full day of mixed use; heavy gaming or a weak signal shortens it.
Why does the S24 get warm?+
Charging while gaming produces heat, and the phone slows down to cool itself.
What settings extend the S24's battery?+
Adaptive refresh, dark theme and the always-on display off.
When is a battery replacement needed?+
If the phone shuts off early or swells.
Do battery-saver apps help?+
Usually not; Samsung's own settings are better.