Users of the latest iPhone 17 Pro and iPhone 17 Pro Max models are reporting an unusual problem: the phone makes a low “zizz-zizz” electrical hum when charging, like that of old radio sets and “transistors”. The problem occurs even when the speaker is not active, there is no sound playing and the device is completely silent.
According to user reports, the same sound is heard when using the MagSafe charger, which indicates that the source is not the cable itself, but the device itself.
Complaints point to an unexpected iPhone 17 Pro/Max charging problem
Many who requested to replace the device claim that the problem also appeared on brand new copies, so it is assumed that it is a software bug in iOS.
The Reddit forums say that Apple has already received multiple reports and that a fix is being worked on. User descriptions indicate that the sound is very quiet and can only be heard when the ear is close to the phone itself. So far, there are no indications that this phenomenon affects the operation of the phone or the safety during charging.
Apple is expected to fix the problem in the next version of iOS, and users are advised to keep an eye out for future updates, as it appears to be a software rather than a hardware failure, reports MacRumors.