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Many of us who use iOS devices like to be on the ball and upgrade to the latest iPhone or iPad. This kind of early adoption philosophy comes with numerous benefits, but also with some risks as well. On the other hand, these risks should be non-existent when it comes to companies like Apple, with thousands of engineers testing even the smallest parts of a new device. However, it somehow happens that early adopters face some problems.

The New iPhone Makes Strange Hissing Noises

As numerous recently surfaced reports are saying, there is a problem with hissing noises coming from the back of the newly launched iPhone 7. Stephen Hackett (who runs was the first to point out to a strange sound coming from his phone.

According to his blog post, it was clear the sounds were coming from back of the phone, possibly from CPU. In addition, these hissing sounds seemed to get worse if the iPhone is under load.

For the moment, several theories have come up to explain why this might be happening. Jon Fingas (Engadget) says that “some suspect coil while or similar electromagnetic effects”. Coil noises come from electromagnetic coils which may act as inductors or transformers. This means that they have a certain resonant frequency.

The bottom line is that this causes resonance and physical vibration, which produces the hissing sound. Many of us have experienced this with our PCs, but this is not something that is usually associated with smartphones. Once again, we are talking about Apple here, so we can sure that the company has taken necessary steps to avoid this. This includes isolating the coils from the rest of the device.

AppleInsider has come up with another explanation, which says that the hissing sounds “could involve the RF transmitter or some other form of interference with the speaker system”. In a similar manner, iOS developers are claiming that this problem is equivalent to hearing the fans spinning up loudly every time your Mac’s CPU gets used to its actual potential.

Either way, this could actually be a good marketing for Apple, since this sort of problem was until recently limited to computers. Since the iPhone 7 features the A10 Fusion processor, this could testify to the iPhone’s power. Numerous benchmarks have already showed that the A10 Fusion is more capable than entry-level MacBook Air, which gives you an idea on how powerful the new iPhone actually is.

The good news is that if you hear some hissing sounds from your new iPhone 7, Apple will gladly replace it for you. Hackett contacted AppleCare and managed to get a new phone. Still, you should count on some waiting time, since supplies are extremely limited at the moment. Either way, this is you only option since there is no fix for this problem when it comes to computers. Since the iPhone 7 is tightly sealed and waterproof, there is absolutely no fix other than replacing it. Let’s just hope that you won’t receive a unit from this manufacturing batch.

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Novak Bozovic
Tech editor and architecture student. His stories have featured in numerous online publications covering hottest stories about IT-and tech trends.