Brand-New Galaxy S25 Edge Overheating? Causes, Solutions, and a Phone Case to Keep It Cool

A day-old S25 Edge overheating during basic tasks like video calls, even without background apps running, has been a cause of frustration for users. There was also a concern for rapid battery drain even with the power-saving mode turned on.

For Samsung fans like us, these things don’t usually faze us, and here’s why:

Initial Setup Heat 

Initial device setup processes can temporarily cause the device to heat up, such as:

• Software updates

• App installations

• Data transfers

Overheating happens due to the device processing a large amount of data and running various processes during the setup phase. Additionally, background processes and apps running in the background can also contribute to device heating during this time.

We recommend waiting a few days for the device to complete background optimizations, which may reduce overheating.

Demanding Apps and Background Processes 

As mentioned, one of the biggest heating culprits is resource-intensive apps. Heavy gaming, high-resolution video streaming, and apps with constant background activity can push the phone’s processor and GPU to the limit.

With the S25 Edge’s very thin profile – at 5.8mm – its hardware may limit heat dissipation, leading to higher surface temperatures during prolonged use.

Poor Ventilation and Environment 

If you’re using the phone in a hot, humid environment, or if it’s trapped under a thick blanket, it’s going to heat up faster. Phones naturally need a bit of airflow to dissipate heat.

Software Bugs or Outdated System Updates 

This is for when you’ve had the S25 Edge for a while. Sometimes, overheating is due to a glitch in the software or an outdated firmware version. Apps stuck in endless loops or system processes running abnormally can spike the temperature.

Hardware Considerations 

The Galaxy S25 series, including the Edge, utilizes the Snapdragon 8 Elite processor, known for high performance but also increased heat output. Samsung has incorporated larger vapor chambers to mitigate this, but some users still experience overheating during intensive tasks.

Faulty Battery or Hardware Issues 

Rarely, overheating can be linked to a malfunctioning battery or internal hardware issue. If you notice the phone getting hot even during light tasks, this might be the case.

Before seeking professional support, some tweaks and adjustments to device settings are worth trying.

Step 1. Close Unused Apps 

Swipe away apps running in the background. The more apps open, the harder the processor works.

Step 2. Remove the Phone from Heat Sources 

If you’re outside in direct sunlight, move to the shade. If the phone’s on a warm car dashboard, relocate it to a cooler spot.

Step 3. Turn on Airplane Mode or Power Saving Mode 

Both modes reduce network activity, which lowers power consumption and heat output.

Step 4. Remove Your Case Temporarily 

If you’re using a bulky case, consider removing it while the phone cools down. Some thick cases can trap heat.

Step 5. Lower Display Brightness 

The brighter the screen, the more power it consumes. Reducing brightness can help ease the workload.

Step 6. Avoid Heavy Use Until It Cools 

If the phone’s hot, let it rest for a few minutes. Pushing it harder can worsen the issue.

If you happen to deal with the Galaxy S25 Edge overheating from time to time, months or years after use, the following solutions might help.

1. Update Your Software 

Samsung regularly releases updates to fix bugs and optimize performance. Make sure you’re on the latest firmware. To check, go to:

Settings > Software update > Download and Install

2. Uninstall or Disable Power-Hungry Apps 

Some apps run too many background processes. Identify apps draining your battery and causing heat by:

Settings > Battery and device care > Battery > App Power Management

3. Adjust Performance Settings 

The S25 Edge has built-in performance modes (like Light performance mode) to reduce the load on the CPU. Simply go to:

Settings > Battery and device care > Battery > More battery settings

4. Clean the Charging Port and Vents 

Dust buildup can cause slight heating during charging. Use a soft brush or compressed air to clean the port and small vents.

5. Use Official Qi2 Chargers and Accessories 

Knockoff chargers or incompatible cables can cause excess heat. Stick to Samsung-certified or reputable third-party accessories.

If your S25 Edge continues to overheat even when idle, or if you notice the battery draining unusually fast, it’s wise to get it checked at a Samsung Service Center. Persistent overheating may indicate hardware issues or battery damage that needs repair or replacement.

Most people don’t realize that their phone case can either help or worsen overheating issues. Here’s how:

• Breathable or Ventilated Design: Some phone cases have small cut-outs or perforations to allow better airflow. This can help your phone release heat more effectively.

• Heat-Dissipating Materials: Certain phone cases choose materials like aramid fiber that don’t trap as much heat as thick silicone or leather. These materials transfer heat away from the phone more efficiently.

• Avoid Bulky, Insulating Cases: While rugged cases offer great protection, they often have multiple layers that act like insulation, trapping heat instead of letting it dissipate. If overheating is a problem, consider a thinner, more breathable option.

If you’re dealing with Galaxy S25 Edge overheating and want a case that balances protection and cooling, consider the FiberBorne Aramid Fiber Case.

Key Features:

• Made from 600D Aramid Fiber – This material is thin yet durable, and it doesn’t trap heat like thick silicone.

• Lightweight & Snug Fit – Unlike rugged cases, it doesn’t add bulk or extra insulation.

• No Signal Interference – Aramid fiber cases don’t block your 5G or WiFi signals.

• Sleek Look – Minimalist design that’s also functional.

While no case can fix extreme overheating due to hardware issues, switching to a thin, heat-friendly case like this can help reduce everyday heat buildup.