Why is the processor in the phone heating up? The smartphone heats up when charging: what to do? What to do in case of overheating due to hardware problems

The push-button telephones never got hot. The first smartphones running Symbian and Windows Mobile operating systems did not have such problems either. Everything changed only with the popularization of Android. With the development of this operating system, increased requirements for processor power began to arise. Also, unfinished applications began to appear, which adversely affect the performance of the device. And these are just a few of the reasons that cause overheating of a smartphone or, in rare cases, a tablet.

Most often, the degree of heating of the device depends on the processor. Consider a home computer as an example. There is also a processor in its system unit. But it is hidden under a massive cooler, since the chipset gets very hot under load. The ARM architecture used in mobile processors has reduced power consumption and, at the same time, reduced heating. But sometimes the device still heats up seriously. Why?

The point is, not every processor is perfect. Sometimes engineers make some mistakes, which are revealed only after the mass production of the chipset has started. Something similar happened with the Qualcomm Snapdragon 810. The product received tremendous computing power, but at the same time the processor began to heat up very much under more or less serious load. Compared to competitors, it was incredibly hot - this was especially noticeable when shooting different devices with a thermal imager. MediaTek's Helio X10, X20 and X25 chips suffer from a similar but less visible problem.

You cannot do anything with the installed processor. Don't worry about your smartphone either. When it gets too hot, the system lowers the clock speed of the chipset. This reduces performance, but saves the internals and the battery from damage.

Using your smartphone while charging it

Push-button telephones at one time could be safely used at the moment when they are being recharged. But modern smartphones receive a current with a very high voltage from the charger. And if at this moment you are talking on a smartphone, then a heating processor will be added to this. As a result, severe overheating can occur. And in rare cases, this can lead to battery swelling and even fire.

Do not under any circumstances talk on the phone when it is charging - after all, it is not difficult to disconnect it from the charger. But you can open a browser and perform other simple actions.

Design flaws

Another problem that cannot be dealt with. It happens that the device heats up due to the fact that the engineers tricked with its insides. Remember the Samsung Galaxy Note 7 - there the creators did not add space between the battery and the walls of the case, which made the cooling extremely ineffective (there was also a problematic controller that did not take the phablet to reboot when overheating occurred). In the case of using the Snapdragon 810 and some other processors, the installation of heat pipes is required, working in the manner of a passive cooler. Needless to say, some manufacturers are abandoning this idea for the sake of economy?

Environmental impact

Some people do not want to part with their gadget even on the beach. And then they are surprised that their Android phone is warming up and the battery runs out. If direct sunlight falls on the body of the device, then the smartphone cannot but overheat. The plastic case heats up the most. This problem can be solved very easily: do not take your smartphone out of your bag on the beach. In the end, not only will you rest your body this way, but your mind as well.

Poor call quality

Previously, Nokia devices got very hot when using GPS or Wi-Fi. Now wireless modules are becoming more energy efficient, and therefore they practically do not emit heat. But there is one exception. The mobile module itself depends on the quality of the coverage and the equipment used by the operator.

If you are in a car, bus or other form of public transport, your smartphone will regularly switch from one tower to another. In case of poor-quality coverage, the device will regularly switch from 4G to 3G and vice versa. If this is the situation in your city, then you can leave only a 3G connection while traveling in transport - this will reduce heating and increase the battery life. This is done as follows:

Step 1. Go to " Settings».

Step 2. Select " Connections».

Step 3. Click on the item " Mobile networks».

Step 4. Select " Network mode».

Step 5. Select the option you want from the list. Please note that if your smartphone does not support LTE networks, then only 2G and 3G will appear in the list of available options.

Also, the device may heat up when downloading large amounts of data. For example, you can through torrent client for android download a movie in high resolution, which weighs about 7 GB - at this moment the smartphone can warm up to a sufficiently high temperature. If this scares you, you can set a speed limit in the application settings, then the load on the device will decrease.

High programmatic activity

Almost any processor starts to heat up under a certain load. Modern chipsets use only two or four cores in many operating modes. This allows it to practically stay cool, at the same time it reduces power consumption, extending the battery life. But some applications are poorly optimized - they load the chipset to the full. Almost all games with three-dimensional graphics do this.

If everything is clear with games, then it is much more difficult to identify gluttonous applications. You can see which of the programs consume the most battery power. But this does not mean that they are the ones that heat up the processor, although the likelihood of a coincidence will be quite high.

Physical defects of the smartphone

If you wondered “why does an Android phone heat up” only after six months or a year of using it, then either an installed application or a physical defect is to blame. If you regularly drop your device, then lean towards the second option. As a result of one of the falls, the antenna could move away, which leads to a deterioration in signal reception - the smartphone will every time try to improve it using software methods, thereby straining the components. Or the contacts could oxidize from moisture, thereby causing increased resistance - the energy in this place will go into heat, increasing the temperature of the battery.

If you think that the problem lies precisely in the internals of the device, then contact the service center. They will help you there, even if not for free.

The owner of the smartphone sooner or later notices that the phone is warming up. This can happen when talking, actively surfing the Internet, while charging the battery. There is nothing terrible in this, this is the regular operation of the device. But it happens that way. that the temperature of the device rises for no apparent reason, for example, it lies blocked, but at the same time the case is red. Today we will try to figure out why your phone heats up during inactivity, being in standby mode.

Users know that even in a locked state a lot of calculations, graphics processing, communication with cellular network repeaters and a bunch of other obscure procedures take place in a smartphone. These processes are an integral part of the system's operation, but there are software and hardware failures, then the device heats up and quickly discharges for no apparent reason. Let's analyze the main symptoms by which you can understand that something is wrong with the gadget.

The body of an iPhone or Samsung is hot, and you can clearly feel it.
The system is buggy, for example, artifacts on the screen or applications start and minimize themselves.
There is a general inhibition of the system, slow reactions to pressing, or their complete ignorance.
The smartphone battery lasts for 2-3 hours after 100% charging.

Causes

The reasons that the iphone 5s heats up, we will analyze many of the most basic of them, perhaps you will immediately understand what is the reason for the breakdown of your device. The instruction is applicable not only to Apple technology, but also to Android devices, since the components are similar in functionality, and sometimes even manufactured at the same factory.

Accumulator charging

This is the first thing that comes to mind when they say that the phone gets very hot. When charging, it is not surprising that the phone's battery heats up, this is the normal behavior of the battery when energy starts to flow into it. If the temperature of the case does not reach extreme values and the device can be held in hand, you should not raise the alarm. But when the hand cannot tolerate heating, in this case it is worth looking for the problem and solving it. First, make sure that you are using the original charger, in the next chapter we will analyze in detail how to act when the battery in the phone is very hot.

Why the battery is overheating, we have disassembled a little higher, now we need to understand how to properly cool the phone without damaging it. There are several main ways, we will list them:

Turn off the device, after 30 minutes you get an absolutely cold smartphone, you can turn it on and actively use it.
Put the gadget in the freezer, after wrapping it in a cloth or stuffing it into a plastic container. After 10 minutes, the body of the device will become cold.
Place the device under a working air conditioner, the whole issue is resolved.

A modern smartphone, be it iPhone, Samsung, HTC, is a real computer, the processor of which consists of several cores that process information in a split second. It is not surprising that in the process of operation, several processor cores can generate a decent amount of heat. There is nowhere to take it away, mobile devices do not have cooling systems, like in PCs or laptops, so they have to take it to the case. Hence, strong heating of the case can occur.

If you play a dynamic 3D shooting game for an hour, you will notice how the phone heats up. The battery will start to sag noticeably, giving energy to the processor for the calculation of the complex graphics of the game. A similar picture can be observed with prolonged surfing the Internet, the reasons will be similar.

Active use of the cellular network

By analogy with heating with a heavy load on the processor, the device can warm up when constantly searching for a network or actively surfing the Internet. But there may be a situation, the phone heats up and sits down at the most inopportune moment due to poor signal reception. The device tries to maintain a stable connection with the cellular repeater, actively exchanging information with it, so it is not surprising that the batteries will last for a couple of hours in such conditions.

Let's figure out another situation - why does the phone heat up (iPhone or Samsung, it doesn't matter) when using 3G or during a long conversation. The situations are similar, the exchange of information is very active, it is because of this that the battery is landed, just charged to 100%.

Solution

Now he will answer the question why the iPhone heats up (the instructions are also suitable for Android devices) in detail, we will analyze the main points and tell you how to cool the device case.

Use original chargers

Why is the battery in a cell phone warming up when using a non-original charger? When charging the battery, use an original charger or a high-quality analogue, using cheap Chinese ones is strongly discouraged. They not only do not fully charge the battery, but voltage surges created by a poor-quality power source can ruin an expensive smartphone by removing the power controller or battery from standing. Replacement of which is very expensive, from 2,000 to 5,000 rubles. Is it worth saving 500 rubles on a good power adapter, it's up to you.

Optimizing the operation of the iOs or Android operating system

In order to get rid of the situation when the phone heats up and discharges very quickly, let's try to tidy up the device software. To do this, remove unnecessary applications from the system that use processor and memory resources in the background.

If this does not help and the phone is also very hot, then you can try to reset it to factory settings. Such a measure in 90% of cases will help get rid of problems with overheating of the device.

How to do this for iPhone is described here in this article.
For Android devices, a factory reset is scheduled.

Reducing the load on the battery while constantly searching for a network

To do this, it is enough to switch the device to power saving mode or the so-called "air mode". Requests to the cellular repeater will not pass, since the wireless interfaces will be disabled, but you can use the phone, excluding the Internet and voice communication. This will save battery power until you find yourself in an area of strong signal reception, then turn off power-saving modes and use your smartphone as usual.

Conclusion

In this article, we found the answer to the question of why the smartphone is warming up. If the phone heats up while charging, this is normal, you shouldn't worry about it, you should start worrying when the device is heating up while lying in a locked state. But this can be solved, read the article carefully and watch the video.

Video

It so happens that the mobile device we deal with every day starts 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 during its inactivity or, say, when performing some simple operations. In this case, you need to figure out what is happening and what is the reason.

In this article, we will try to find out what can serve as a source of heating in the case of your device, what means an increase in the temperature of the case in one place or another, and also how to deal with the noted problem.

A bit of theory

It is not a secret for us that many processes, hidden from the human eye, take place in a working device. This is the work of the same processor, and power consumption, and graphics processing, and many others. If outwardly the smartphone looks calm, then inside it there is a series of operations that can cause, among other things, heating.

There may be several answers to the question of why the phone is heating up. To understand the real reason, it is necessary to find out which of the device modules heats 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. It's easy to find out: pay attention to the place where the temperature rises.

There are not so many elements in a smartphone device that can heat up. These are: battery, processor and display. Only these parts can cause serious temperature rise during their operation. Because of them, the phone heats up, only the reasons are different. Read more about this in the following sections, divided by the criterion of which element gets hot.

Powerful processor

We buy devices that have 4-8 cores that can run any application and process 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 work of colorful games and applications without any problems. Therefore, we are trying 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?

It's very simple: if the phone's hardware is involved in the calculation process, it will heat up anyway. Only, unlike a laptop, the insides of a smartphone cannot be cooled. There is no miniature cooler-fan that drives the air around the “heart”. Therefore, the phone heats up, with which you will work for at least half an hour or an hour.

The degree of heating of the device also depends on how “cumbersome” in terms of performance, the tasks assigned to it are. If you play a colorful 3D game for 2 hours at maximum settings, the phone will get hotter than when you just surf the Internet.

Battery

The battery installed in the phone is the only source of power for the gadget if it is not connected to a power outlet or PC. Therefore, the electricity required to operate the processor comes from here. And, as we know, a working electrical appliance can heat up if you connect it to a power source.

Therefore, if you have been working with your phone for a long time, the battery may heat up, which will start to give you discomfort.

Only in this case, you need to pay attention to the degree of heating. If you understand that this is a normal temperature, since the back cover of the device is only slightly warmer than our body, you should not worry. Very soon it will cool down and return to its previous regime.

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 of the device? If this is the first time your phone is getting very hot, we recommend turning it off, as it can be damaged even more. After that, you need to understand what the reason was: maybe you used non-original charging; or the battery has been replaced. There are a lot of factors affecting this, including you need to understand how quickly the phone heats up, how long it cools down, what applications were opened at the moment when you felt the temperature rise.

With all this in mind, certain conclusions need to be drawn.

Heating display

Perhaps, if you notice that your mobile device screen is heating up, you shouldn't worry about it. Most likely, you just spent too much time at your gadget, because of which the temperature of some of its components began to rise. For this reason, for example, the Samsung phone is often heated.

The degree of heating depends on what type of display is being used and what brightness is set on it. If the problem with the rise in temperature annoys you too much, you can try to reduce the brightness; if this does not help, contact the service center. There they should tell you whether this is a normal temperature for your device or not.

Charging process

It often happens that the phone heats up while charging. There is nothing surprising in this - being connected to the network, the charging adapter begins to heat up, after which the temperature of the battery of your smartphone also rises. If, again, you can hold your device in your hands and do not burn yourself with it, you should not panic. Otherwise, we advise you to carry the phone for repair and it is advisable to refuse to use the charger, so as not to harm even more. It so happens that the phone heats up when charging in the event that the power adapter fails. If this happens in your situation, be careful: it can damage the gadget.

Communication problems

As practice shows, there are a number of other situations. when the phone heats up, it discharges and shows unstable work in general. In particular, we are talking about communication problems.

You see, if a smartphone is not receiving 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 starts to warm up in parallel. In this case, we recommend switching it to “Airplane mode”.

Do not harm!

If you feel a strong heating of your device for any reason, first of all try to protect yourself from unpleasant situations, such as further breakdown and failure of the phone. Disconnect it from the network, turn it off, disconnect the battery - all these actions are aimed at restarting the gadget, letting it cool down and starting to work normally. Only if these actions did not help get rid of the problem, begin to figure out what the matter is.

Individual working mode

Also remember that all devices are in some way different (in terms of the temperature regime). One smartphone can work with one temperature, while for another it is considered unacceptable, and vice versa. Do not be alarmed if you bought a gadget and noticed that it is heating up. Read the reviews about it: you may not be the only one facing this problem.

A modern smartphone is a device that simplifies life and helps a person in their daily activities. The phone, like other equipment, contains heating elements. Often, under heavy load, their temperature rises, which leads to heating of the phone case. The most common source of elevated temperature is:

CPU;
Battery;
Display.

Repair of mobile phones (without reference to the model)	price, rub.	Guarantee	Repair time, min.
Diagnostics	Is free	-	from 20
Recovering a mobile phone after water ingress	from 600	Yes	from 60
Replacing the speaker	from 400	Yes	from 20
Replacing the microphone	from 400	Yes	from 20
Display replacement	from 600	Yes	from 25
Replacement of body elements	from 300	Yes	from 15
Phone flashing, firmware update	from 700	Yes	from 30
The phone does not turn on	from 300	Yes	from 20
Other types of services	from 300	Yes	from 20

Heating of at least one of the elements leads to an increase in the temperature of the entire smartphone as a whole. This problem can occur in any phone, even a completely new one. But if a recently purchased smartphone heats up noticeably during normal use, then you should contact the office of the company where the purchase was made to receive a replacement or warranty service. However, there are also natural reasons for the heating of the smartphone.

CPU load

This problem can come up when using applications that load the processor. For example, launching games heavy for the processor or using several applications at once.

Solution:

The problem is solved in this case simply: it is necessary to disable heavy processes, use one or more (simple) applications at the same time. If there is a need for simultaneous use, then this will not bring any harm to the smartphone. But with regular and long-term use, problems can begin.

Using 3G or 4G networks

When using these networks, the phone's transmitter has to transmit a signal for many kilometers to the nearest 3G base station (or 4GBS). Therefore, the further away the BS, the more power the phone needs to transmit the signal. For this reason, the use of a Bluetooth connection also applies, but most often it does not bring the smartphone to critical temperatures.

Solution:

The solution is to take short breaks for the smartphone. The phone cools down quickly, so 4-5 minutes will be enough. Another solution is to use an alternative network, namely Wi-Fi. In this case, the phone's transmitter does not have to transmit a signal over long distances, so the smartphone will not warm up.

Prolonged use of the display

The problem most often occurs when watching movies or videos for a long time. It is easy to diagnose - the front of the phone is noticeably hotter than the back.

Solution:

While watching a movie, turn off (leave the phone in a locked state) for a couple of minutes, and as soon as you feel that the display is cold again, you can continue watching.

Long conversations

The explanation for this problem can be given the same as in the second paragraph. This reason rarely manifests itself, but nevertheless, in some phone models, which are especially prone to heating, this can cause a malfunction of the battery, which will be described below.

Battery malfunction

The last and probably the worst reason for the heating of a smartphone is a malfunctioning battery. It is the worst because a whole series of problems follow. At the very least, this is the heating of the phone. This problem is easy to identify yourself. If the case of the smartphone is opened, open it and gently touch the battery.

It should be a little warm, but if it is hot, then you should think about replacing the battery. Also, the appearance of the battery can be a cause for concern. If it malfunctions, it begins to swell. The battery takes on a "swollen" shape on one side, dents on its surface. It is dangerous to use such a battery: such a malfunction could cause the smartphone to explode.

Solution:

The solution is to replace the battery. All phone batteries are designed to last a certain amount of recharges, so don't be surprised if, after years of use, battery problems start to show. It is worth noting that when replacing the battery, do not skimp on the original part. After all, the use of non-original or unsuitable accessories for your smartphone can lead not only to repeated problems with the battery, but also to damage the phone in general.

Consequences of prolonged heating of the phone

All components of the smartphone can easily withstand the rise in temperature. But it is still better not to expose the phone to prolonged loads and subsequent heating. The consequences are most often associated with a battery malfunction, namely: fast discharge, disconnection of a charged battery.

How to turn off Siri on iPhone or iPad
IPhone Blacklist - Setting

Some Android smartphone users face the problem of excessive heating of their devices. You can't let it drift, so you need to figure out why the Samsung phone is heating up as soon as possible and try to fix this problem.

Reasons for heating the phone

In the process of work, absolutely all smartphones have a temperature rise. This is due to the heating of the processor, battery and display. But it's one thing when the device just heats up a little and quite another when it gets so hot that it's not comfortable to hold it in your hand.

It is with excessive overheating that Samsung Galaxy owners often face, which is due to the powerful filling of the smartphone. In general, the main reasons can be divided into the following:

high processor load with tasks;
heavy games and applications;
battery malfunction.

Important! If the battery (not to be confused with CPU heating !!!) heats up strongly during charging - this is not fatal, but when this happens in normal operation, and even more so if it quickly discharges at the same time - urgently take the device to the service center!

How to protect your phone from overheating

The easiest and most effective way is not to use heavy applications. It is also recommended to switch between communication options at a minimum, using one connection all the time, for example, 3G.

The most difficult to implement, but also the most effective method, is to lower the processor frequency. This not only reduces the heating temperature of the smartphone, but also increases the battery life.

To lower the processor frequency, you need to freeze a little. To do this, you need Root rights on the phone, a custom kernel, or firmware like CyanogenMod. Next, it remains to install the SetCPU application and adjust the processor frequency through it. If you are interested in this process, then you can easily find detailed instructions on the Internet. Just keep in mind that any interference with the regular operation of the iron is fraught with breakdowns and loss of warranty. As they say, everything is at your own peril and risk.