It happens that the mobile device that we deal with every day begins to get very hot. If this happens in certain situations (for example, after several hours of continuous play), then we will not be surprised at this: it is clear that the gadget’s processor was under load, which is why its temperature increased. But it’s another matter if the phone heats up while it’s inactive or, say, when performing some simple operations. In this case, you need to figure out what is happening and what the reason is.
Simply because they have a limited cooling system and they rely on the battery to generate more heat. All these hardware components generate heat and overheat your phone. Now, we don't recommend stopping playing intense games or using other heavy apps, but it is important to create a balance. Although you may have to reduce the usage time for older phones.
A faulty battery is the most common reason for a phone to overheat. Your phone may be fine, but if your phone's battery overheats, it can heat up the entire phone. To detect a bad battery, check to see if the back of the phone is more hot than other areas. Also, try removing the battery and comparing how hot it is compared to the phone.
In this article we will try to find out what can be a source of heating in the body of your device, what means an increase in the body temperature in one place or another, and also how to deal with the noted problem.
A little theory
It is no secret to us that a working device undergoes many processes that are hidden from the human eye. This includes the work of the same processor, power consumption, graphics processing, and much more. If outwardly the smartphone looks calm, then inside it there is a series of operations that can cause, among other things, heating.
The Battery Information option should appear, tap it and you will see the battery temperature and battery temperature listed. Battery health should be "good", everything else should be a concern. In case your phone battery was the culprit, you will have to replace it with a new one. If your phone continues to overheat while charging, there may be a problem with your battery or charger. Use the instructions above to find out the condition of your battery and make sure it is good.
There may be several answers to the question of why the phone gets hot. To understand the true reason, it is necessary to find out which of the device modules is heating up, after which we will understand the reason for this phenomenon. And to know what gets hot, you need to understand where the heating occurs. This is easy to find out: pay attention to the place where the temperature rises.
For the charger, try replacing the charger and data cable to see if that is the cause. If you find that any of these components are faulty, you will have to replace it. Also, make sure that the phone is not placed in a suffocating place while charging, such as under a pillow. Since charging already creates heat, more heating resources can cause the phone to overheat.
A charging phone generates heat and heavy software causes all components of the phone to become hot, this can cause the phone to overheat. If you put your phone in a case for protection or just to make it look good, then this could be a problem. Housings are usually made of insulating material such as plastic or leather. Such material can trap heat inside and outside, causing overheating. Remove the phone case and use it to see if it is still hot.
In total, there are not many elements in a smartphone that can heat up. These are: battery, processor and display. Only these parts can cause a serious increase in temperature during operation. Because of them, the phone gets warm, but the reasons for this are different. Read more about this in the following sections, divided by the criterion of which element becomes hot.
If you find that this case is causing the problem, either remove it or replace it with a more open one. The housing replacement should be open at the front and lighter at the back. If possible, you can also drill holes on the back of the phone case to make it less suffocating.
Malware can also be the cause of overheating as such malware is not targeted on resources so easily. It will find and remove any type of malware and tell you what removed it. After scanning, try using your phone again and check if it gets warm.
Powerful processor
We buy devices that have 4-8 cores, capable of running any application and processing any task in a matter of milliseconds. And this gives certain positive results: working with a powerful phone is much more pleasant, because it is much less buggy and at the same time supports the operation of colorful games and applications without any problems. Therefore, we try to choose just such a smartphone, without thinking about the temperature regime of such processors. And due to their high power, their average temperature is quite high. Why is this happening?
Many apps run in the background to offer their features, so even if you close them; they still use resources and heat up the phone. This ensures that no rogue background apps steal resources and heat up your phone. It has a cooler option that automatically detects when your phone is heating up and prompts you to press a button to cool it down.
This feature will automatically find apps that overheat your phone and stop them. Moreover, it has many other resource-friendly features as well. Some of its features include: Memory Booster, Junk File Cleaner, Battery Booster, Antivirus, Game Booster, Charge Controller and more.
It's very simple: if the phone's hardware is involved in calculation processes, it will heat up in any case. Only, unlike a laptop, the insides of a smartphone cannot be cooled. There is no miniature cooler-fan driving air around the “heart”. That’s why the phone you work with for at least half an hour or an hour gets warm.
Messing with phone functions and settings
Older phones may start to overheat due to worn-out components. You don't have many options to fix the overheating problem in such phones, although you can still get more life by using the phone efficiently. Things you can do to stop your phone from overheating include.
Widgets use resources to update information in real time.
- Refrain from using resource hungry applications.
- More data slows down your phone and also causes it to heat up.
- Don't go overboard with widgets, only use the one you need.
The degree to which the device heats up also depends on how “cumbersome” the tasks assigned to it are in terms of performance. If you play a colorful 3D game at maximum settings for 2 hours, the phone will heat up more than when simply surfing the Internet.
Battery
Calls use a lot of resources, you may notice how calls drain your phone's battery. If you are making calls for several hours, then it is obvious that the phone will heat up. However, the heat and humidity from your hands also contribute to your phone overheating.
Provide a safe environment for your phone
On average, 1 hour of continuous calling should make the phone warm, but not hot enough to be dangerous. Try to keep your calls to less than an hour, with extended breaks in between. There is a possibility that your phone's speakers may be damaged, you will have to have them checked by a phone repair shop if you have any doubts. Make sure your phone is kept away from any type of heat source, including warm clothing, a pocket, a backpack, the sun, a pillow, or anything that can transfer heat to your phone.
The battery installed in the phone is the only source of power for the gadget if it is not connected to an outlet or PC. Therefore, the electrical energy required to operate the processor comes from here. And, as we know, a working electrical appliance can heat up if it is connected to a power source.
Therefore, if you have been using your phone for a long time, the battery may become warm, causing you discomfort.
If your phone is still overheating, place it in front of a fan to help it cool down faster. If your phone overheats, it's bad for you and your phone. Follow the above tips to cool down your phone and have a better experience. Using your phone is usually the leading cause of random overheating. However, if your phone constantly overheats, it could be the battery or a rogue app. Also, if you have a very old phone, then upgrading to a new phone is the best option to fix your phone overheating problem.
Only in this case you need to pay attention to the degree of heating. If you understand that this is a normal temperature, due to the fact that the back cover of the device is only slightly warmer than our body, there is no need to worry. Very soon it will cool down and return to its previous mode.
If, on the contrary, you feel that the smartphone is difficult to hold in your hands, then you need to do something. First of all, you need to know if this has happened before. If not, what caused such a reaction from the device? If this is your first time your phone gets very hot, we recommend turning it off as it may damage it even more. After this, you need to understand what the reason was: perhaps you used a non-original charger; or the battery has been replaced. There are quite a lot of factors influencing this, including the need to understand how quickly the phone heats up, how long it takes to cool down, what applications were open at the moment when you felt the temperature rise.
Did you manage to stop your phone from overheating? Every smartphone user is no stranger to the problem of overheating. Instead, many users filed such complaints. Is there a possible solution to solve this problem? And speaking of the overheating problem, it occurs due to many factors.
Usage is certainly one of them. There are several more reasons. We tend to overcharge our phones. This can lead not only to heating of the battery, but sometimes, sometimes, to an explosion. One reason could be storing your phone in the sun. Batteries and sunlight don't like each other very much. Beaches are also a danger zone for phones.
Taking all this into account, certain conclusions need to be drawn.
Hot display
Perhaps, if you notice that your mobile device screen is heating up, you shouldn’t worry about it. Most likely, you simply spent too much time on your gadget, which is why the temperature of some of its components began to rise. For this reason, for example, a Samsung phone often gets hot.
Apart from sunlight, sand and water are killers. They leak into the phone and cause chaos. Avoid diving with your phone in your pocket. There are professional apps to fix overheating issues and keep your phone cool.
It offers a number of features that you will love. The application offers one functionality. One of the coolest apps on the market and also one of the most popular. Analyzes in real time and searches for heating applications. Once detected, it will disable the application that was the cause. Extremely easy to use and user friendly application. It also helps you control additional app usage.
The degree of heating depends on the type of display used and the brightness setting. If the temperature rise issue bothers you too much, you can try turning down the brightness; if this does not help, contact the service center. They should tell you whether this is a normal temperature for your device or not.
It detects heating applications and either controls their actions or turns them off, thereby ensuring battery life. Added bonus: Transfer files to your computer to free up more space. As mentioned above, a cluster of files stored on the device can also contribute to an overheating situation. This way, you can move files to your computer to free up more space and eliminate overheating issues. If you want to free up more space, the easiest way might be to directly store all your important files, apps, and data on your computer.
Charging process
It often happens that the phone gets warm while charging. There is nothing surprising about this - when connected to the network, the charging adapter begins to heat up, after which the temperature of your smartphone’s battery also increases. If, again, you can hold your device in your hands without getting burned by it, there is no need to panic. Otherwise, we advise you to take the phone for repair and it is advisable to refuse to use the charger, so as not to cause further damage. It happens that the phone heats up when charging if the network adapter fails. If this happens in your situation, be careful: it may harm your gadget.
Incredible as it may seem, wouldn't it be great if you could store all your important phone data on your computer? And it helps you do just that. When a crisis actually occurs, no one works like this software. This also helps with free space, which is another way to reduce heat in the phone. Additional apps take up more memory and slow down the phone, which is running below rated levels, thereby heating it up.
But with this professional software, this will definitely be overcome. And this software can offer you more, for example. Mobile Phone Problem and Solution - Your mobile phone gets too hot while charging or playing or using.
Communication problems
As practice shows, there are a number of other situations. when the phone heats up, discharges and shows unstable operation in general. In particular, we are talking about communication problems.
You see, if a smartphone does not receive the proper signal strength, it tries to find it, connect to the network and work normally. If this cannot be done for a long time, the device uses up its battery power and at the same time begins to heat up. In this case, we recommend switching it to “Airplane Mode”.
Cell Phone Problem and Solution - Does your cell phone get too hot while charging or playing or using? Learn how to diagnose and fix this heating problem. This can happen inside the mobile phone on the body on the mobile cell phone. There can be different causes and symptoms of this heating problem. Different reasons will have different solutions.
How to solve and fix the cell phone problem?
Check whether the mobile phone heats up when a particular application is running or whether it always heats up. This is because the processor has to perform too many tasks at the same time. Close all apps and try to run 1 app at a time to avoid mobile phone heating issue. If heating occurs, there is some internal hardware problem. Most mobile phone service centers and mobile phone repair experts like me will change. This can solve the heating problem. . If the phone gets hot, it is dangerous for the technology.
Do no harm!
If you feel your device heating up for any reason, first of all try to protect yourself from unpleasant situations, such as further breakdown and failure of the phone. Unplug it, turn it off, disconnect the battery - all these actions are aimed at rebooting the gadget, letting it cool down and start working normally. Only if these actions did not help get rid of the problem, start to figure out what’s wrong.
Individual working mode
Also remember that all devices are different in some way (in terms of temperature standards). One smartphone can work with one temperature, while for another it is considered unacceptable, and vice versa. Don't be alarmed if you bought a gadget and noticed that it gets hot. Read reviews about this: you may not be the only one who has encountered this problem.
What to do when your Samsung phone gets hot and discharges quickly? What is the reason for the abnormal heating of the Android phone?
If your Samsung Galaxy phone gets warm after a few hours of use or while charging, this is normal. However, if it gets so hot that it becomes impossible to hold, then it is no longer normal. Something needs to be done about this. It is necessary to find out whether the problem is operating system or technical, then a specialist should take a look at the device.
In this post, I will tell you a couple of things that you should do if you notice that your phone is getting abnormally warm or even overheating.
This issue should not be underestimated as you may have heard how the Galaxy Note 7 rocked the Android community and kept them on their toes for months following reports of fires caused by the device's faulty battery. So, for the safety of readers, I offer some practical troubleshooting steps if your phone starts to heat up.
The purpose of this troubleshooting guide is to understand if there really is a problem with your phone and to make sure that you as the owner are safe. Again, this problem should not be taken lightly because overheating is most often caused by a battery that may not be working properly.
Mobile phone batteries can explode, and I have personally encountered such a case. That being said, here's what you need to do...
Step 1: Unplug the charger and unplug it from the phone
If you are charging your device and notice that it is getting hotter than ever before, stop the charging process. We don't yet know if the problem is with the phone, the battery or the charger, but for your safety please stop charging your phone.
After unplugging your phone from the charger, continue to monitor the phone's temperature to know if it continues to get warm even though it's not charging anymore.
Step 2: Turn off your phone
If the temperature does not decrease after disconnecting the charger, turn off the phone to see if the temperature decreases. If it's still hot after a few minutes, then don't do anything to it and just take it back to the store and have a technician look at it.
Step 3: Charge your phone while power off
On the other hand, if the temperature drops after disconnecting the charger, then it is possible that the charger is only warming up when turned on while charging. Now you can try charging it while it's off to see if it's capable of replenishing the battery without getting too hot.
If you have a lot of apps running in the background, your phone may get warm and charging it in this state will also cause some heat. So, having found out that the phone charges normally when turned off, move on to the next step.
Step 4: Launch the phone app in safe mode and put it on charge
Now let's try to check if the Samsung can still charge without heating up when all third-party apps are temporarily disabled. Start your phone in Safe Mode this time and then connect the charger.
Charge your phone for 5 minutes and try to see if it is overheating. If the heating is within limits, then the problem could be caused by some applications that are running in the background. Try to see if you can do something with these apps. You may already have an idea of which of your applications are causing the problem.
How to boot your phone in safe mode:
- Turn off your device.
- Press and hold the Power button.
- When SAMSUNG appears on the screen, release the Power button.
- Immediately after you release the Power key, press and hold the Volume Down key.
- Continue holding the Volume Down key until the device finishes rebooting.
- Safe Mode will be displayed in the lower left corner of the screen.
- Release the Volume Down key when you see that Safe Mode is enabled.
- Remove apps that are causing problems.
Step 5: Reset your phone
Considering that the phone may still get warm even in Safe Mode, or if your phone still gets hot even if it is not charging, reboot it immediately to see if the problem is caused by system conflicts or certain features.
However, if possible, back up your files and data and then do a factory reset to avoid bricking your device after a reset.
Why does my Samsung Galaxy battery drain quickly?
1. Close all unused applications. This can be done using the Recent Apps button located to the left of the Home button. Additional available features optimize your device's automatic brightness.
2. You can also use the additional battery optimization feature located in the settings. Go to the advanced option and select “Optimize battery usage.” Here you can choose to optimize selected or all applications. Please note features that disable background and data synchronization when using this mode.
3. Turn off unwanted features such as Bluetooth or location mode. Check and disable location tracking - in case it is proprietary and the map app uses it, the battery will drain faster, in addition, your phone will constantly search for a GPS signal, which will cause heating.
It's better to keep it turned off when you're not using cards. Many other apps also tend to use location tracking, so it's best to turn it off to ensure higher energy savings and reduce the smartphone's heat.
4. Using 4G and 3G data for longer periods – When 3G or 4G data is continuously used by the smartphone, the CPU and GPU work continuously, which causes heating.
5. Too many apps running at the same time – Sometimes too many apps are open on the smartphone, which can lead to heating due to unnecessary processes running in the background.
6. Check regularly for application and software updates. To do this, go to the Play store, find “My Apps” and select update all. To check for operating system updates, go to settings and find the “Phone” tab, and then “System update”.
If all of the above methods failed to fix Samsung overheating, then the problem lies not in the operating system, but in the components of the smartphone. It is necessary to contact a service center to inspect the device malfunctions.
Very often, owners of mobile devices claim that their phone tends to increase its temperature during operation. The main task is to determine the causes (what causes the phone to heat up) and the consequences of this behavior.
This heating is completely normal and is not a defect. However, there are a number of phone models that become very hot even during short conversations.
Possible causes and solutions
All electrical products heat up during operation. Electrical components use current to function and therefore heat up.
The temperature of the mobile device may increase for the following reasons:
- tasks that consume a significant amount of current are used;
- problems with the mobile device itself;
- Heating up of the phone is a normal situation, since the operation of electrical devices generates heat.
When charging
Your phone getting warm when charging from the mains is quite common and shouldn't be much of a concern. All phones heat up to varying degrees when the battery is charging.
There is a completely reasonable explanation for this behavior of the phone: the process of charging the battery is accompanied by heat generation, which causes the temperature of the phone to increase. It is important that this heating does not exceed the standard parameters of the phone manufacturer. All phones heat up when charging, some models more, some less.
It is important to note the battery life of the phone. If the battery charge quickly drops to zero with insignificant use of the phone and its partial load, then it is recommended to check the serviceability of the device’s charging unit.
When talking
There is nothing surprising when the battery heats up when using the phone in talk mode, since the device’s battery releases a certain amount of energy during a conversation. This results in accelerated discharge of the device.
An additional reason for the phone to heat up is that during a conversation the phone is constantly in your hand, pressed against your cheek and receives a lot of heat from this. The duration of a call greatly affects the temperature of the phone - for all those who like long conversations, the battery heats up significantly. There is nothing criminal about this. Quite a normal situation.
In the camera area
Often phone users notice excessive heating of the phone in the camera area. In fact, the camera is not to blame here, and the reason for the heating lies in the processor, which is located in close proximity to the camera. The level of processor heating depends on the load on the phone and the duration of use on it.
Select a WIFI USB adapter for your TV. How to do this is here.
In standby
A much more dangerous signal is an increase in battery temperature in standby mode. This behavior of the battery is difficult to explain, since there is neither an increased load on the device nor any other objective reasons. The problem can be fixed only by replacing the battery with a new one.
It is unlikely that you will be able to save the battery; at the first sign of its malfunction, you need to get rid of it immediately. Other options may be unsafe for both the phone and its user.
Unreasonable heating of the phone may not only be due to a damaged battery. Often heating is caused by malfunctions of other components. Another option is moisture getting inside the phone, which can cause the contacts inside the device to oxidize and cause small short circuits. In such a situation, cleaning of some elements is also necessary.
If there have been no special incidents with the device recently, and it constantly heats up in standby mode, then it is absolutely necessary to take it to a service center, since you can independently answer the question “why is the phone heating up?” almost impossible.
Video: WHAT TO DO IF YOUR PHONE IS HEATING
The phone gets very hot and discharges quickly
Often the heating of the phone is accompanied by its rapid discharge. There is nothing critical about this, but it is quite a reason to think about it.
IfThe device heats up more and more often, then you should determine in which area of the phone the temperature is rising:
- If the rear heats up, you need to check the battery. It may be worn out and not fully performing its function. Replacing the battery will help in this situation;
- When the front part heats up, you should pay attention to the touch screen, which gets warm when used for a long time. Sometimes heating of the front part of a mobile device may be due to incorrect operation of the processor.
Accelerated discharge of the device is facilitated by:
Based on the facts described, the conclusion follows - the phone will not heat up only under limited loads. All elements of the phone, when used intensively, have the ability to emit heat waves, which, with significant use, can cause unreasonable concern to the owner
>Dear friends, today we will look at the following question: why does the phone heat up and the battery drain? Of course, this problem is complex. It needs to be eliminated as soon as possible before it leads to other, more dangerous consequences. For example, you've probably heard about incidents where a smartphone caught fire or the device turned off forever. That is, after a certain incident, the device stopped responding to commands, without reacting to them in any way. As they say: there is no smoke without fire. This means that everything has its own reason.
The telephone is a complex element, which contains a huge number of parts. And a failure in one of them can lead to breakdown of the entire device. The battery occupies a special place among the components of smartphones, as it provides the energy necessary for the operation of the device. If you remove it, you will not be able to use it, even if you connect it to a power source through the charging connector. Therefore, any problems with the device’s battery must be resolved immediately, without any delay.
Why is this happening?
We will look at both cases in tandem: when the phone gets hot and when the charger runs out quickly. Why fast? Because slowly it will sit anyway, regardless of use. That is, even if it just lies there, the time will come when the battery level becomes minimal and the device turns off. Go:
- If you constantly use your phone, practically never letting it out of your hand, surfing the Internet via cellular data or playing various games, then you shouldn’t be surprised that your battery quickly runs out and the device’s temperature rises. It is worth moderating your ardor regarding the use of the gadget, since at such a frantic pace it may one day give up. Typically, such users often need to repair some part or component of their smartphone.
- External damage (you dropped the phone, it fell into water, and so on) can often cause internal problems with the device. During this, parts of the device responsible for maintaining the normal temperature of the gadget could be damaged. In this case, it is better to contact a specialist to diagnose the work.
External damage to the phone due to a fall
- Using your phone while it's charging is a surefire way to get destroyed. The fact is that the battery simultaneously consumes energy and wastes it. You can get on the treadmill at high speed and eat a double hamburger. It won't be very easy. The same is the case with the phone: due to such a load, it begins to heat up very much.
- High brightness of the phone, always-on wireless networks in tandem with geolocation services: why else can the battery drain so quickly? Correct settings are the key to long life and correct operation of the smartphone battery. Therefore, set the appropriate parameters, which is a separate topic for discussion.
- If you use low-quality accessories, that is, a charger, then it can damage the battery so that it becomes very hot when charging. The same applies to the battery in the phone: if you replaced it with some analogue, the quality of which is in doubt, then, again, you should not be surprised that it quickly runs out and heats up the device. In any case, you can contact the center where you went, where your equipment was repaired, demanding either a refund or a normal battery installed. Please note that such requirements can only be made under certain circumstances.
Use a quality charger
- An old battery can also cause headaches and problems with the device heating up and quickly discharging. The fact is that the battery of any phone supports a certain number of charging cycles, after which its capacity begins to drop. This means that you get fewer hours of work on your gadget.
Let's sum it up
Now you know what to do if your phone gets hot and the battery runs out. As you can see, there are a lot of reasons, so it is important to identify and diagnose yours. This will help to eliminate it faster and more correctly. Try to follow the tips from the list of the most popular recommendations so that such problems occur less frequently. Share your opinion, impressions, and personal experience in dealing with this problem in the comments.
Phone heating is the most common problem among users of modern gadgets. Sometimes heat is a harmless reason for excessive smartphone use, but extreme heat is often the cause of more serious problems with the device. So why does the phone get hot?
What is the danger of overheating?
The most significant danger of a smartphone overheating is that the battery may eventually explode. Such cases happened rarely, but in any case, this is the worst thing that can happen. It is better not to reach such a critical state, so at the first signs of excessive heating you should contact a repair service. Low heat may also have its manifestations in the operation of the device. For example, if a phone or tablet gets hot, the operating system may cope with its tasks worse, which is why the gadget will be glitchy and slow, and the battery will most likely run out quickly.
Main causes of overheating
There are several main reasons:
- CPU overheating. This can happen if you use the device for a long time and often, open a large number of applications, turn on additional modules (Bluetooth, GPS, Wi-FI, mobile Internet).
- Phone or tablet that lasts a long time is in the open sun, begins to experience the influence of direct sunlight and overheat.
- Low memory, unfinished software.
- Battery overheating. This can happen if defective or low-quality chargers are used to charge the device, or if the battery itself is faulty.
- Presence of damage or manufacturing defects.
Checking the operating system
The operating system is the “brain” of the smartphone; the presence or absence of heating largely depends on its correct operation. In case of severe overheating, first of all you need to check the serviceability of this particular system:
- Check if the external memory is overloaded temporary files, which remain after a program is deleted.
- A large number of background applications will also slow down the device. They can be closed using the task manager.
- Smartphone firmware may not be performed correctly, which may cause the operating system to become unstable. This problem can be resolved by updating or rolling back the system to the state of the previous update.
- Check device memory for presence of virus. Virus software is eliminated using special anti-virus applications.
Changing screen parameters
Also, one of the reasons why the device may heat up is screen settings option. If this value is set to maximum, then the phone (Android, iPhone or any other) will spend a lot more energy and, therefore, heat up more. The screen brightness parameter can be changed either independently or set to an automatic average value. 
High CPU usage
Very often, a busy processor can cause heating. The processor, which works with a large number of programs and heavy games, is overloaded, which can cause the smartphone to overheat. To reduce CPU load need to reduce time that is spent on working with applications, give the device a rest for every hour. Also reduce graphics quality in games, this will significantly reduce the processor's energy consumption. Only download apps that are compatible with your processor.
Wireless network operation
Wireless networks or communication modules - Bluetooth, 3G, Wi-Fi cause the device to work with the consumption of a large amount of energy, as a result of which heating occurs. This problem is easy to deal with, firstly, need to be disabled these modules if they are not actively and constantly used. Secondly, it is better to periodically turn on and off them than to keep them running all the time. If it is possible to use Wi-Fi, then it is better to turn off the mobile Internet, it consumes more energy than the public Internet module.
Incorrect charging
In this case, the phone may become very hot when charging. Improper charging means:
- Usage faulty or incompatible charger, in this case the phone charger usually gets very hot;
- Working with the phone while it is charging;
- Improper use - not allowed completely discharge phone battery.
If you avoid the above situations, you can easily prevent your phone from heating up due to improper charging.
Wrong case
The case is designed to protect your mobile device from various damages and scratches; its use will greatly protect the gadget. But you need to know that the case must also be chosen correctly; the phone must be cooled in it just as well as without it. The correct covers are the so-called bumpers, which cover easily damaged parts. Usually in leather cases The phone gets hotter and has no way to cool down. 
Viruses and mining
The presence of viruses can also be the reason why the phone gets very hot and quickly discharges during operation (this applies to Samsung, Lenovo, Asus and any other smartphones). In order to check whether this is true or not, you need to install an application on your phone that will check and fix viruses and malicious applications.
Unfinished software
If the software or any applications are not properly developed by the developers, then for this reason the device may also become very hot. Should update the system or roll back to the previous version, then the problem will be solved.
Impact of external factors
Sometimes the smartphone may begin to heat up when exposed to direct sunlight. You should protect the device from this impact, use the gadget in the shade or do not leave it in the sun for a long time.
Heating when talking
To prevent the phone from heating up during a conversation, you need to turn off all additional modules and close application tabs.
Actions in case of overheating
If your smartphone periodically heats up, then you should occasionally check the heating temperature. To do this, you need to install an application on your phone, for example, CPU-Z, which measures the degree of overheating. Temperature up to 45 degrees does not go beyond the normal limits, a temperature above 50 degrees is already critical.
It is better to leave a very hot phone alone for 20-30 minutes, after closing all applications and turning on airplane mode.
