There is a folk proverb
"The summer solstice is three Geng, and the winter solstice is nine"
After the winter solstice, the number nine cold winter begins
The coldest time of the year arrives
Recently, the video
"It's over, Southern Mobile
Can't get used to the temperature in the north."
It resonated with netizens across the country
The place of the incident is located in Harbin City, Heilongjiang Province. In the video, a southern tourist goes to a mobile phone repair shop and asks the owner for help. "After I came here, the battery level of my phone dropped all of a sudden, is it related to the weather?"
"Related, at night around minus 28 °C, you are playing with your phone outside for a while, and suddenly the screen goes black when you snap. The shopkeeper explained that this is due to the low temperature in Harbin, and it is normal for the mobile phone to lose power. He enthusiastically suggested to the tourist that he could put a hot sticker on his mobile phone and put it in the inner pocket of his clothes.
There is a kind of cold called "freeze to shut down"
Actually, for
Northeast China, Inner Mongolia and other cold regions in the north
Smartphone users
"Mobile phones are frozen and turned off" is not new
It has been exposed several times in recent years
"I didn't respond when it was hot, I thought it was broken, and I went back and plugged in the power to come back to life."
"As soon as it freezes, the electricity will be gone, relying on a righteous body to warm up the mobile phone, cover a few photos for a while, cover a few photos for a while, take a few photos for a while"
"I went to the supermarket to buy drinks and checked out and found that my mobile phone was frozen and turned off, and I stood at the door of the supermarket and charged it with someone's charger and waited to pay"
on major online platforms
Netizens ridiculed endlessly
"The north's own mobile phones are not adaptable
Every day on the way home from work
The phone will definitely turn off and restart a few times"
In addition to being frozen and shut down
There are also many netizens who reflected
The phone also experienced a rapid decrease in power
Some netizens said, "It's quite incomprehensible."
Got off the bus
32% of the phone's electricity is frozen and turned off
Go back to your dorm room and plug it in
Boot becomes 87%"
The normal working temperature of the mobile phone is 0-30°C
At low temperatures
Will the phone really be "frozen"?
What can I do to help my phone "freeze resist"?
On this issue, on December 28, Fan Jianping, director of the omni-channel terminal operation center of China Telecom Wuhan Branch, explained: "The normal working temperature of mobile phones is 0-30 °C, and in extremely cold weather, the phenomenon of mobile phones being frozen and turned off does exist. ”
Some netizens suggested
It's best to get a new phone before traveling to the north
Whether the phone is frost resistant
Does it have a lot to do with the degree of newness and age?
In Fan's view, the two are not much related. Whether the phone works properly or not is more closely related to the environment in which it is used.
Fan Jianping explained that mobile phones are mainly powered by lithium batteries, which mainly rely on lithium ions to move between the positive and negative electrodes to work. During charging, lithium ions emerge from the positive lattice and pass through the electrolyte separator to the negative electrode, where they are embedded in the graphite interlayer. When the working discharge occurs, lithium ions come out of the graphite anode layer and return to the positive lattice.
Under cold temperature conditions, the electrolyte resistance increases, the ion diffusivity of the positive and negative electrodes of the battery deteriorates, and the lithium-ion activity gradually decreases, and the discharge capacity of the battery becomes weaker. At this time, the mobile phone is easily automatically recognized as out of battery and automatically turned off.
Generally speaking, as soon as the temperature drops to minus 10°C, the screen of the smartphone begins to dim and enter a low battery state.
At minus 20°C, it is almost impossible to turn on.
At minus 30°C, neither the screen nor the battery can be used.
For netizens complaining
The problem of the mobile phone battery losing power quickly
Fan Jianping thinks
This is not normal and is relatively rare
The battery charging process is to convert electrical energy into chemical energy inside the battery, and the use process is to convert the chemical energy of the battery into electrical energy, and then into mechanical energy and internal energy. Electrical energy is discovered through sensors, and data is judged by sensors. This exchange process is sensitive to temperature, and in extreme temperature situations, the sensor may make a mistake in judgment.
Doing so can help your phone "freeze resistant"
In extremely cold weather
How to ensure the normal use of my mobile phone?
Fan Jianping suggests:
Avoid direct exposure of your phone to the outdoors
When the temperature is low, it is best to put the mobile phone in the pocket of the underwear or in a relatively warm place such as a pocket or backpack, try not to use the mobile phone directly to talk, and it is best to use the headset to talk to avoid the phenomenon of crashing;
Control the temperature difference to avoid sudden cold and hot temperatures
If the temperature difference is too large, condensation will be formed, causing the motherboard and other parts to be damp, resulting in a crash or even unable to turn on, so if the phone is frozen and turned off, it can be taken indoors to warm up a little before turning it on;
Paste electrostatic film
In winter, it is dry, and the mobile phone is easy to rub and produce static electricity when it is placed in the pocket of the clothes. In extreme cases, static electricity may even penetrate the phone screen.
So, is it advisable to put hot stickers on mobile phones to prevent freezing? Fan Jianping believes that this is indeed a feasible method. In addition, he said that the new mobile phones recently launched by brands such as Huawei and OPPO have adopted a large number of high-tech technologies, and the ability to withstand cold and low temperatures has been further enhanced.
Your phone has appeared
Is it "frozen" and shut down?
How did you solve it?
Welcome to leave a message in the comment area to discuss
END
Source: Jimu News (Reporter: Lansha, Correspondent: Wang Yunhe)
Editor: Xiao Moss
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