Some iPhone 7 and iPhone 7 Plus users report their device tend to make an audible “hissing sound” when their new devices are under a heavy operational load. The new devices were released this past Friday, September 16.
AppleInsider reports the issue was first noted by 512 Pixels‘ Stephen Hackett. Since then, a number of people, such as TechCrunch‘s Darrell Etherington have also reported their device “hisses.” Hackett called AppleCare, and support staff offered him a replacement unit.
“As my iPhone 7 Plus was restoring from iCloud, I thought I noticed some sound. After picking the device up from my desk, it was clear the sounds are coming from back of the phone, possibly from the CPU. It seems to get worse if the iPhone is under load. It’s loud enough to be heard even if the iPhone is just sitting on the table. I don’t have to put it up to my ear to hear it.”
It isn’t certain what could be causing the noise, and at this point in time, it isn’t certain how many other iPhone 7/7 Plus users are experiencing a similar issue. Some theories have included the RF transmitter, or some other type of interference with the speaker system is being generated under a heavy processing load.
The video below, (via 512 Pixels), demonstrates the noise:
Have you noticed a similar hissing sound coming from your new iPhone 7 or iPhone 7 Plus when its running under a heavy processing load? Please let us know in the comments section below.