2023-10-14 01:21:38
A few days ago, the French radiation regulatory agency pointed out that the electromagnetic waves of the iPhone 12 exceeded the standard and banned the sale of the phone in France. This has attracted the attention of regulatory agencies in other countries and plans to join in re-inspection. Although APPLE refuted this accusation, in order to quell the dispute, Apple announced on its official website that it would fix concerns that iPhone 12 electromagnetic waves may exceed standards in iOS 17.1.
Why does the electromagnetic wave of iPhone 12 exceed the standard? What content will be updated in iOS 17.1? Here is an explanation:
1. Why does the electromagnetic wave of iPhone 12 exceed the standard? The solution for iOS 17.1
The French radiation regulatory agency (L’Agence Nationale des Fréquences, ANFR) previously investigated the electromagnetic radiation of 141 mobile phones on the market and found that when testing the iPhone 12, the limb SAR value (the electromagnetic power absorbed by the human body from the device) was 5.74 W/ kg exceeds the limit and does not comply with EU regulations, so Apple is required to withdraw from the French market starting from September 12, 2023. However, since the iPhone 12 was launched, global sales have exceeded 116 million units, and it has passed electromagnetic wave inspections in various countries. Most of the SAR values detected by monitoring units in various countries are less than 1 w/kg, which meets the EU standard of less than 2 w/kg.
Why did the French ANFR randomly test the body SAR value of iPhone 12 to exceed the standard?
The general SAR value test is the test specification of FCC and CE. The SAR test requires the use of liquid standardized human head and body models to simulate the RF absorption characteristics of different human tissues. SAR value detection units in various countries usually test the SAR standards of the head, body and limbs on mobile phones operating in the frequency range of 450 MHz to 6GHz. However, the French ANFR tested the iPhone 12 and found that when the phone is removed from the body, the electromagnetic wave energy will exceed the EU standard. Only when the phone is placed in a coat pocket, next to the ear to answer calls, and is in a bag, the electromagnetic waves do not appear to be too strong.
Apple explained: “iPhone has sensors that detect when the device is on a stationary surface, such as a table, rather than being held in your hand or in your pocket. All iPhones have used this off-body feature for more than a decade. The detection mechanism allows the device to slightly increase the transmit power when it is away from the body to achieve the best performance.” “SAR value testing in various countries is in close contact with the human body, but ANFR assumes that the device is in a stationary state and in an away state. The tests were conducted and did not meet international standards.”
In other words, the iPhone has used its sensor to provide “away notification” since iOS15, and will increase the phone’s transmission power when the phone is away from the body to help users find the lost phone more easily. However, in order to comply with the requirements of France’s ANFR, Apple decided to add in iOS 17.1 a feature for French users of iPhone 12 to reduce the transmission power when stationary and away from the body. After updating to iOS 17.1, iPhone 12 will no longer increase the allowable power range when the phone sensor detects an away state (such as placing it on the table). This change to the antenna transmit power may result in a slight decrease in mobile network performance under certain away-from-the-body usage conditions, but most users should not notice these slight changes.
2.iOS 17.1 will update content:
According to the iOS 17.1 Beta 2 and Beta 3 versions recently released by Apple, in addition to solving the problem of iPhone 12 electromagnetic waves exceeding the standard, iOS 17.1 will also have at least the following eight functional updates:
However, there are still some sporadic disasters in iOS 17.0.3. For example, when inputting phonetic notation on Facebook, it will jump randomly or characters cannot be selected, etc. These problems can be attributed to the compatibility issues between the new version of iOS and third-party APPs, which require APPLE or third-party companies to coordinate and accelerate software updates to solve them. It is expected that before iOS 17.1 is officially released, there will be Beta 4/5.. versions to deal with bugs that are discovered one following another.
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