Samsung Galaxy Z Flip 4

How to Fix Samsung Z Flip 4 Overheating Issues

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The Samsung Galaxy Z Flip 4, the latest flip smartphone boasts a foldable dynamic AMOLED display, a powerful processor, and an impressive camera setup, all packed into a compact and stylish design. However, like any other electronic device, the Galaxy Z Flip 4 is not immune to issues. One of the common problems that some users have reported is overheating.

Overheating not only affects the performance of your device but also leads to hardware damage if not addressed promptly. In this comprehensive guide, we will explore the various causes of overheating in the Samsung Galaxy Z Flip 4 and provide you with effective solutions to resolve this issue. 

We will delve into specific hardware components that contribute to increased temperature, the role of apps and features in heat generation, and the importance of keeping your device software up-to-date. 

Let’s get started!

Key Features:

  • Overheating is a common issue users have reported in Samsung Galaxy Z Flip 4.
  • The reasons behind the problem are the device’s hardware components, multiple apps running simultaneously, using fast charging, and application bugs.
  • Effective solutions to the problem are uninstalling or putting unused apps to sleep, avoiding using the device while charging, reducing the brightness of the device, or turning off unused features. 

Causes of Samsung Galaxy Z Flip 4 Overheating

Overheating in the Samsung Galaxy Z Flip 4 can be caused by various factors. A key contributor is the device’s hardware components. The processor, for instance, can generate significant heat when the device is being heavily used. Similarly, the screen, particularly when set to high brightness, and the battery, especially during charging, also contribute to an increase in the device’s temperature.

Samsung Galaxy Z Flip 4 Overheating

Another major factor is the simultaneous running of multiple apps, particularly those that require internet connectivity. These apps can put a strain on the processor, causing it to generate more heat.

Charging the device, especially when using fast charging, also leads to an increase in temperature. Fast charging works by delivering a higher current to the battery, which causes it to heat up. This is particularly true if you’re using the device while it’s charging.

Other factors that contribute to your Samsung Galaxy Z Flip 4 overheating include weather conditions, using non-standard power chargers, application bugs, and low signal strength. 

It’s important to note that Samsung Z Flip devices come with built-in protection mechanisms to prevent hardware damage due to overheating (overheating warning). However, there are instances where false overheat warnings are triggered due to bugs in the operating system.

This guide addresses all the software-related issues, such as software bugs, app issues, and other system-wide problems causing the device to overheat. Let’s start by uninstalling power-hungry apps from your Galaxy Z Flip 4.

Fix 01 – Uninstalling or Putting Unused Apps to Sleep

One of the major causes of overheating in the Samsung Galaxy Z Flip 4 is the apps running in the background. Some apps, especially those that require a constant internet connection, cause the device to heat up significantly. Identifying these apps is the first step in resolving the overheating issue. 

You can do this by going to:

  • Settings > Device Care > Battery. Here, you will see a list of apps and their power consumption.
battery usage
  • Once you’ve identified the apps, you have two options. If the app is not essential, consider uninstalling it. To uninstall an app, simply go to Settings > Apps > [App Name] > Uninstall.
app uninstall
  • If you still need the app but don’t use it frequently, you can put it to sleep. To put an app to sleep, go to Settings > Device Care > Battery > Battery usage > Sleeping Apps > Add. Then select the app you want to put to sleep.

By uninstalling or putting unused apps to sleep, you can significantly reduce the heat generated by your Samsung Galaxy Z Flip 4. This not only helps in cooling down your device but also improves its overall performance and battery life.

Fix 02 – Avoid Using The Device While Charging

Fast charging is a feature that many modern smartphones, including the Samsung Galaxy Z Flip 4, possess. It’s designed to get your device back to full battery in the shortest amount of time possible. 

However, this rapid influx of power causes your device to heat up. This is because the process of charging itself generates heat, and when combined with the heat generated by usage, it leads to overheating.

For this reason, it’s advisable to avoid using your Galaxy Z Flip 4 while it’s charging. This doesn’t mean you can’t use your phone at all during this time, but try to avoid intensive activities such as gaming, streaming videos, or using GPS, as they can strain the processor and battery, leading to increased heat production.

Another important aspect to consider is the type of charger and cable you’re using. Not all chargers and cables are created equal. Some may not be up to the standard required for your device, leading to inefficient charging and excessive heat. 

It’s always recommended to use the original charger and cable that came with your device, or at least ensure that any replacements are of a similar quality and specification. This maintains the optimal charging speed and prevents any unnecessary heating issues.

Fix 03 – Reduce the Brightness

High brightness levels require more power, which in turn generates more heat within the device.

The device’s AMOLED screen, while providing vibrant colors and deep blacks, generates a significant amount of heat when brightness levels are set high. This is because each pixel on an AMOLED screen is individually lit, and the brighter the pixel, the more power it consumes.

To reduce the heat generated by your device, lower the brightness level. To do this by going to 

  • Settings > Display > Brightness level and adjusting the slider to a comfortable level that is not too high.
  • Alternatively, you can enable the Adaptive brightness feature, which automatically adjusts the brightness level based on the lighting conditions in your environment. To enable it go to Settings > Display > Adaptive brightness and toggling the switch to the ON position.
adaptive brightness
  • Avoid exposing your device to direct sunlight for prolonged periods. The sun’s rays can cause your device to heat up quickly.

Fix 04 – Turn Off Unused Features

Another reason your Samsung Galaxy Z Flip 4 might be overheating is due to the overuse of certain features that demand a lot of power from your device. Features such as Bluetooth, GPS, Wi-Fi, and Mobile Data are high power-consuming features that cause your device to heat up if they are left running in the background for extended periods.

Here’s what you can do to reduce the heat generated by your device:

  1. Turn off Bluetooth: it is best to turn this feature off if not in use. To do this go to Settings > Connections > Bluetooth and toggle the switch off.
  2. Disable GPS: If you are not using any apps that require your location, turn it off by going to Settings > Connections > Location and toggling the switch off.
  3. Switch off Wi-Fi: If you are not using Wi-Fi, turn it off. To do this go to Settings > Connections > Wi-Fi and toggle the switch off.
  4. Disable Mobile Data: Turn off Mobile Data when not in use. To do this go to Settings > Connections > Data usage and toggle the switch off.

Please note that the idea here is to turn off any unused features to reduce the amount of heat the device generates. This doesn’t mean you shouldn’t use these features.

Fix 05 – Switch From Mobile Data to WiFi

Using your Samsung Galaxy Z Flip 4 in an area with poor signal coverage also causes your device to work harder to maintain a connection, leading to excessive heat generation. The device’s processor and battery are put under strain as they try to keep up with the demands of maintaining a mobile data connection, especially if you’re streaming videos or downloading large files.

Switching to WiFi alleviates this problem. WiFi connections generally require less power than mobile data connections, resulting in less heat generation. Furthermore, WiFi networks usually offer faster and more stable connections, reducing the strain on your device.

Here’s how to switch from mobile data to WiFi:

  1. Swipe down from the top of the screen to open the notification panel.
notification panel
  1. Tap on the WiFi icon to enable it. If the icon is blue, it means WiFi is already enabled.
WiFi icon to enable
  1. If you’re connected to a WiFi network, the name of the network will appear below the WiFi icon.
  2. To connect to a new WiFi network, tap on the WiFi icon. This will open the WiFi settings.
WiFi settings
  1. From here, you can select the network you want to connect to. If the network is password-protected, you’ll need to enter the password.

Fix 06 – Update Device Software

Keeping your device’s software up-to-date is a crucial step in maintaining its optimal performance and preventing overheating. Samsung often releases software updates that include bug fixes, system improvements, and optimizations that can enhance the overall efficiency of your device.

One common cause of overheating could be due to bugs in the operating system. These bugs cause your device to work harder than necessary, leading to increased heat generation. By updating your device’s software, you can ensure that these bugs are fixed and your device operates at its best.

Here’s how to update your device software:

  1. Head over to Settings.
  2. Tap on Battery and device care.
Battery and device care11
  1. Tap on Software update.
Software update12
  1. Then, tap on Download and install.

Remember, it’s always a good idea to connect your device to a stable Wi-Fi network before downloading a software update to avoid using up your mobile data. Also, ensure your device is charged or connected to a power source during the update to prevent any interruptions.

Fix 07 – Take the Device to Repair Center

Repair Center

If all the above solutions fail to resolve the overheating issue, it might be time to consider professional help. Persistent overheating could indicate a more serious hardware problem that needs to be addressed by a professional technician.

Before you take your device to a Samsung Service Center, it’s important to back up all your important data. This is because if the technician needs to perform a factory reset or replace some components, it will wipe off your data.

Wrapping Up

Overheating issues on your Samsung Galaxy Z Flip 4 can be a nuisance, but with the above-mentioned fixes, you will be able to resolve them effectively.

If, however, the problem persists, it’s advisable to take your device to a Samsung repair center for a thorough check-up. It’s always better to be safe than sorry when it comes to your valuable gadgets.

We hope this guide has been helpful to you. If you have any questions or need further assistance, feel free to drop a comment. And if you found this guide useful, please support us by sharing it with others who might benefit.


James is the leader of our website and brings a wealth of knowledge in hardware troubleshooting. With his background as a certified electronic technician and experience working at a smartphone repair shop, James has an intimate understanding of the inner workings of high-end smartphones. He will guide users through various steps to identify hardware issues and provide practical solutions. While James won’t dive into intricate technical details, he aims to empower users to take action and resolve hardware problems.