How to Fix Samsung Galaxy S25 Ultra That Overheats While Gaming

Mobile games push the Galaxy S25 Ultra to its limits. The processor, graphics engine, and display all work hard at the same time, which can cause the phone to heat up. A little warmth is normal, but when the device becomes uncomfortably hot or starts lagging, you need to fix the problem before it leads to performance issues.

Why Your Galaxy S25 Ultra Overheats While Gaming

• Extended gameplay at high graphics settings.
• Poor ventilation or using the phone in a hot environment.
• Background apps using CPU and memory.
• Outdated software affecting thermal performance.
• Fast charging or wireless charging while gaming.
• A case that traps heat around the phone.

Lower the Graphics Settings in the Game.

High graphics quality pushes the processor harder, which increases temperature quickly. Lowering the settings reduces strain and helps the phone stay cool.

1. Open the game, and then go to its Settings menu.
2. Look for Graphics options, and then lower the resolution or frame rate.

Test the game again to see if the temperature becomes more manageable.

Close Background Apps.

Apps running in the background continue to use memory and CPU. This makes your Galaxy S25 Ultra heat up faster during gameplay.

1. Tap the Recent apps key, and then swipe away all running apps.
2. Return to the Home screen, and then reopen the game.

This helps the device focus all resources on gaming.

Remove the Phone Case Temporarily.

Some cases trap heat and prevent proper airflow around the device. Removing the case while gaming can instantly improve temperature levels.

Take the case off, place the phone on a flat surface, and continue gaming to check if heat reduces.

Turn Off Unnecessary Features.

Features like Bluetooth, Mobile Hotspot, and NFC add extra load to the processor. Turning them off reduces background activity.

1. Swipe down from the top right to open Quick Settings.
2. Turn off Bluetooth, Mobile Hotspot, and NFC if you are not using them.

These small adjustments help reduce heat buildup during long gaming sessions.

Enable Adaptive Battery and Performance Optimization.

Your Galaxy S25 Ultra includes tools that control background processes and prevent unnecessary heating. Turning these on helps balance performance and temperature.

1. Open Settings, and then tap Battery.
2. Tap More battery settings, and then enable Adaptive battery.

This keeps apps from overusing power while you play.

Update the Game and System Software.

Software updates often include performance improvements and thermal fixes. Running outdated versions can cause overheating.

1. Open Settings, and then tap Software update.
2. Tap Download and install to check for new updates.

You can also open the Galaxy Store and update the specific game from there.

Avoid Charging While Gaming.

Charging generates heat, and gaming adds even more. Doing both at the same time can push the temperature too high.

Wait until the phone cools down before charging, or stop gaming while plugged in. This prevents unnecessary heat buildup.

Restart the Phone.

A quick restart clears temporary files and resets system performance. This often helps if your device has been running for many hours without a break.

1. Swipe down from the top right to open Quick Settings.
2. Tap the Power icon, and then tap Restart.

After restarting, try gaming again to check if the temperature stays stable.

Your Galaxy S25 Ultra is powerful, but even top-tier devices can heat up during long gaming sessions. These steps should help you manage temperature, improve performance, and prevent overheating from interfering with your gameplay.

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