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2025

NIMASO Special: Causes and solutions for exploding smartphones | Be careful of high temperatures! NIMASO's recommended smartphone cases

NIMASOスペシャル:スマホ爆発の原因と対策|高温注意!NIMASOおすすめスマホケース

If I asked you if the smartphone you have in your hand might suddenly explode, what would be the first thing you think would cause it?

Smartphones are precision electronic devices that are used frequently in our daily lives and are very important to us. However, if they are used in a sunny or high-temperature environment, they can become unstable, break down, or even explode.

Even smartphones can "get hot"?!

If the temperature is too low (below -20 degrees), the battery power will drop dramatically and the iPhone will automatically turn off. In this case, you can charge the iPhone or return it to normal temperature before using it again.

However, with the recent scorching hot weather, smartphones are exposed to high temperatures in the sun, which can accelerate the wear of parts, and can have a particularly large impact on smartphone batteries. They can no longer be charged, and displays can become dark. If this continues, the battery life will be shortened and it may even explode.

In fact, iPhones already have a "Caution: High Temperature" label to prevent the risk of overheating.

What to do when the "High Temperature Warning" message appears on your iPhone

We are currently experiencing extremely hot days, and if you use game apps or use your smartphone while it is charging, the temperature range for iPhones (0℃ to 35℃) may be exceeded, causing the device to go into "high temperature warning."

If your iPhone has a "high temperature warning" message, we'll show you the correct way to lower the temperature.

  1. Turn off the power

To cool down a hot iPhone, first turn it off. Turning it off will stop the iPhone from generating heat and will allow you to cool it down more efficiently.

  1. Keep your iPhone in a cool place

After turning off your iPhone, leave it in a cool place out of direct sunlight. A well-ventilated place is particularly effective at cooling down your iPhone.

In such a humid environment, spontaneous combustion or explosion due to sunburn could result in serious property losses.

TIPS: When using or charging your smartphone in summer, do not do so on your pillow or futon, and do not cover your smartphone to avoid it becoming too hot and catching fire. It is also best to use your smartphone in a shady place, and do not leave your smartphone in the car.

With this, you don't have to worry about your smartphone getting wet with sweat?

Water is the biggest killer of smartphones, and one of the main reasons why smartphone speakers lose sound quality in summer is because they get wet with sweat. Also, the phenomenon of smartphones becoming slower to respond and freezing frequently cannot be attributed to the effects of sweat.

In the summer, sweat is secreted more, and when using a smartphone, sweat penetrates the inside of the smartphone without people noticing, causing adverse effects on the parts. If small malfunctions of the smartphone increase and accumulate day by day, in serious cases, it can cause a short circuit inside the smartphone, eventually causing damage to the smartphone.

When using your smartphone in the summer, do you often wipe off sweat and worry about sweat penetrating into the inside of your smartphone? NIMASO's matte case is resistant to hand sweat and water, so you can use it without worrying about getting wet with sweat every day! It uses a non-slip material to prevent slipping caused by water and sweat. In addition, NIMASO uses materials that are resistant to summer ultraviolet rays and yellowing caused by sweat. Let NIMASO's clear case protect your precious iPhone this summer.

If you use your smartphone in the bathroom, be sure to use the waterproof bag, which is an exclusive item for NIMASO members.

Even smartphones can "catch the wind"?!

Not only can high temperatures damage your smartphone, but a temperature difference of more than 10 degrees can also cause your smartphone to "catch a cold," which is another reason why your smartphone may break down.

Nowadays, air conditioners with cooling function have become an essential item in homes, department stores, and offices. Although it is comfortable in the room with the air conditioner on, when you leave the room, the big temperature difference causes condensation inside the smartphone.

Water vapor will be generated inside the iPhone, and if there is too much water vapor, it can cause the smartphone to short out, buttons to stop functioning, and the screen display to become unstable. In severe cases, the smartphone may have to be discarded.

One of the materials that NIMASO is very particular about for its clear cases is TPU. It is characterized by its elasticity and softness, and is strong in both heat retention and heat dissipation, protecting your smartphone from large temperature differences. It is also very attractive that it is easy to absorb shock but difficult to break, and the impact force can be broken down on the surface, making it suitable for summer outdoor leisure and sports such as surfing and picnics. Your smartphone will be well protected.

It is said that a smartphone case is the most effective way to protect a smartphone, so NIMASO has always been committed to making cases, and we will also be applying this technology to the iPhone 14, so please look forward to it.

Could the blue light from your smartphone be damaging your skin?

The blue light emitted from smartphones cannot be blocked by conventional UV protection. It is said to cause pigmentation on the skin, just like sunburn caused by ultraviolet rays.

Therefore, you need items that can block blue light as well. Recently, it has been discovered that blue light can cause not only pigmentation, but also dry eyes and skin and inflammation. Items that address this issue have been released, so let's start taking preventative measures.

NIMASO 's "blue light cut" glass film can reduce blue light to the maximum extent. It can relieve the eye fatigue caused by continuously looking at your smartphone. It can also prevent blue light from the source. It effectively protects against blue light from eye fatigue and damage to the skin.

Use a glass film with "blue light blocking" to prevent smartphone burns and keep your skin beautiful.

Finally, NIMASO would like to once again offer our cooperation to you all!!

Apple's official website states that the allowable temperature range for iOS devices, including iPhones, is 0°C to 35°C. In particularly hot environments, using an iOS device may permanently shorten the battery life. Furthermore, if you continue to use an iPhone in a hot environment, it is likely to trigger the "high temperature warning."

Therefore, to prevent overheating of your iPhone from affecting the battery and smartphone performance, it is important to avoid placing your iPhone in places where it will be exposed to sunlight or where the temperature will rise.

As the hot weather continues, iPhones are prone to overheating, and sunburn and high temperatures can have a permanent negative impact on all aspects of your smartphone. Use the good items provided by NIMASO to provide more reliable protection for yourself and your beloved smartphone.

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