When mobile phones are exposed to the sun and crash, people look for various “magic tools” such as Ice compress for Phone Overheating to cool down their phones. Some popular ones include ice stickers, cooling stickers, ice packs, etc., which cost only a few cents each.
Some cooling “magic tools” have sold hundreds of millions of pieces. What do manufacturers say when mobile phones heat up or even crash?
The Internet Freezes and Slows Down Once You’re In The Sun Outside”
Since June, users of various brands of mobile phones have reported on social platforms that their phones were burning like soldering irons when used outdoors. I was taking pictures with a friend’s phone outside yesterday, and the camera became unusable.
The picture automatically went dark after spending a while with the camera.
It was so hot that I almost got roasted when I launched a video, and the screen went black for no apparent reason. It took half an hour to turn it on. I thought the phone was broken,” “The interface was so hot that it couldn’t be fixed, and the picture was lagging.
It took me half a day to open a web link, and the battery drained faster.” Some netizens also reported that ” not only is it hot when you go out, but (the phone) is also hot indoors.”
Why do mobile phones frequently experience the above problems in summer?
Is it related to the hot weather? Recently, the customer service of Apple, Vivo, OPPO, Huawei, and Honor were consulted.
Apple has this to say Regarding Phones Overheating in Hot Weather.
Apple technical support said that the latest iPhone 15 Pro Max, for example, has a titanium shell with higher thermal conductivity than a glass shell. If the phone is outdoors for a long time, the temperature may be too high, causing it to overheat and trigger its protection mechanism.
The phone automatically reduces the screen brightness to reduce its energy consumption. If an application is connected to the cellular network and keeps running, the cellular network will always try to connect to a better signal. The network speed will also slow when the phone’s energy consumption is reduced.
“If you use your phone outdoors, especially with map navigation software, the cellular network constantly tries to connect to a stronger signal, while the location needs to be updated in real-time. The combination of the two will cause the phone to consume power faster, and the higher the temperature of the phone, the less useful other features will be,” said the above-mentioned Apple technical support.
Huawei Customer Service Has This to Say
The customer service representative at Huawei’s consumer service hotline said the phone may go black to protect the battery and related functions.
However, the customer service representative denied the claim that high temperatures caused the network speed to decrease, saying that “the network speed is generally related to the signal and should not have much to do with the temperature.”
What about Oppo and Vivo?
In addition, the customer service of the official websites of OPPO, Honor, and Vivo also stated that if the mobile phone’s temperature is too high, the screen will be temporarily black, and the network speed will slow down.
“In summer, the heat dissipation of mobile phones is slow. If you use high-power consumption software, such as shooting videos and video chatting, it may cause the power consumption of the mobile phone to increase further, exacerbating the heating of the mobile phone.” OPPO’s official website customer service said.
Cooling “artifact”? Brand Customer Service Does not Recommend It.
In hot weather, mobile phones become “hand warmers,” so consumers seek various”magic tools” to cool down their phones. Let’s briefly discuss some of them.
- Use two cooling patches alternately, apply them, take them off, and let them air dry. This method can be used to live broadcast for two hours without shutting down the phone. A few dollars of ice patches can solve the troubles of thousands of mobile phones.
- Take off the phone case and spray alcohol on paper to wipe the screen and back. While wiping, blow with a fan, and the phone will no longer be hot.”
- Put the phone case in the refrigerator, take it out, and put it on if it’s hot.”
Ice Compress for Phone Overheating: Do They Work?
In addition to restoring the phone’s normal temperature, the cooling “magic tool” is inexpensive and easy to take outdoors.
However, cooling tools such as ice packs are not necessarily safe. One netizen said, “I used an ice pack wrapped in a face towel to cool my phone, and today, the official after-sales service told me that this would cause water to enter the motherboard.”
The customer service of the aforementioned mobile phone brand also suggested that the phone should be cooled mainly using software settings and avoiding high-temperature environments.
Are ice compresses recommended for cooling your overheating phone?
They are unclear about the extent of damage to mobile phone devices caused by third-party products and cannot make guarantees to consumers. They do not recommend using ice stickers, ice bags, ice rings, etc., to cool the phone.
Apple technical support recommends activating low-power mode and automatically adjusting the brightness when your phone is not in use to minimize energy consumption. Also, to reduce damage to the battery, do not place your phone in high-temperature enclosed spaces such as bags or cars exposed to direct sunlight.
What Happens When Your Phone is Overcooled?
“Cooling methods such as ice packs are not recommended. The battery is a chemical consumable. The battery’s chemical substances cannot move if the phone is overcooled. Therefore, it is not recommended whether it is overcooled or overheated.” Apple technical support said.
Vivo customer service also explained that when a mobile phone’s temperature is high, and ice cubes or a cooling patch are suddenly attached to it, the water vapor inside the phone may condense and liquefy, producing water droplets that may affect the operation of electronic components.
Honor customer service recommends that if you urgently need to cool down your phone, place it indoors and turn on the air conditioner, or place it on a cool iron table or a place with a slightly lower temperature and let it sit for 3 to 5 minutes before you can use it normally.
In addition, several mobile phone brand customer service mentioned that small fans, heat dissipation back clips, and other radiators can be used for cooling.
Mobile Phone heat Dissipation faces new Challenges.
The “heat” of smartphones is due to the new challenges that lighter and thinner bodies, more powerful performance, and localized operation of large models pose to mobile phone manufacturers regarding terminal power consumption management and heat dissipation efficiency.
A research report shows that in July this year, graphite heat dissipation film and VC (vapor chamber) heat sinks were the most commonly used heat dissipation materials in mobile phones.
Advantages of Using Graphite Film For Heat Dissipation
The above research report explains that graphite film has good flexibility, high and low-temperature resistance, chemical stability, and excellent horizontal heat transfer ability and is effective in eliminating local hot spots in miniaturized smart electronic devices.
Graphite is currently the most mainstream heat dissipation method. Apple’s entire product line uses pure graphite heat dissipation solutions, and other mobile phone brands have a mixed solution of pure graphite/graphite + VC heat sink.
In addition, graphene film’s heat dissipation effect is better than graphite’s. Since Huawei used it in the Mate 20 series in 2018, graphene film has gradually become one of the mainstream heat dissipation solutions in Chinese flagship phones and game consoles.
The customer service of OPPO’s official flagship store stated that the OPPO A3, launched in July 2024, uses graphite heat sink technology. This technology can quickly and evenly transfer heat to various positions of the graphite sheet and diffuse it outward.
How Does Vapor Chamber Cooling Fairs On Mobile Phones?
The research report shows that the VC heat spreader has higher thermal conductivity and heat dissipation efficiency, can quickly and evenly diffuse heat to a larger area, and can integrate to solve the heat dissipation needs of multiple high-power consumption devices.
“VC is developing towards ultra-thinness to save internal space in mobile phones. It is widely used in flagship models such as Samsung, Huawei Mate60, and OPPO. The cost is higher than graphite, but the heat dissipation effect is better.
In July and January, Vivo and OPPO released the iQOO Neo9S Pro+ and OPPO Find X7 Ultra. The former has a built-in 6K sky-screen VC liquid cooling system, and the latter has a 7930mm VC cooling area and uses dual steam channel liquid cooling to dissipate heat for SoC chips quickly.
An in-depth research report on the communications industry released by Huachuang Securities in July this year showed that the power consumption of AI mobile phones may increase. Currently, flagship smartphones mainly use large pieces of graphite for heat dissipation. With the increase in heat dissipation requirements, the penetration rate of graphene and VC heat sinks may be expected to increase.
Disclaimer!!
The views in this article are for research and reference purposes only and do not constitute investment advice.
Leave a Reply