My new iPhone 17 Pro Max (iOS 27.0.1, received 15 October 2026) has had an audio issue from the first day: during music and podcast playback, the volume rises and drops on its own, without me touching any buttons or settings.
Already tried: restart, reset, Sound Check off, Dolby Atmos off, all audio and accessibility settings off. Apple’s remote diagnostic showed no issue, but the fluctuation is clearly audible and I have a video of it.
Has anyone else with an iPhone 17 Pro Max experienced this? Did it turn out to be a hardware fault, and was the device replaced?