Reports suggest iPhone 17 Pro hisses during charging

Charging noise issue reported

Some owners of Apple’s iPhone 17 Pro and 17 Pro Max have reported hearing an unusual noise when their phones are charging. The sound has been described as a faint static hiss or crackle, similar to interference on an old radio.

Users report that Apple Support has been contacted and that some cases were escalated to engineering through support channels, but Apple has not issued a public statement on the issue.

What users are hearing

Affected users report that the noise resembles radio static or low-level hissing, which is audible even when the volume is low or muted. Some describe it as a “buzz,” “crackle,” or faint electrical noise near the bottom speaker.

Others hear it when scrolling webpages while charging or doing simple tasks. The frequency and loudness vary; some hear it only in quiet environments. It’s subtle, but noticeable enough to concern some owners.

Charging makes it louder

The issue seems most noticeable when the iPhone is plugged in and charging, whether using Apple’s official charger, a third-party cable, or MagSafe. Several users report that the hiss is quieter with magnetic wireless charging, but not fully eliminated.

Many users report that unplugging the phone stops the sound, which points to a relationship with charging conditions, though it is not universal. The correlation with charging suggests a link to power handling or EMI, but the exact cause has not been proven.

Happens with various chargers

Users say the hissing noise occurs regardless of the charger type or cable brand. Some have tried official Apple chargers, USB-C cables, third-party bricks, and wireless pads, but the noise still appeared.

Reports indicate it’s not isolated to cheap accessories: even Apple-certified (MFI) cables and chargers can produce the issue. This suggests the problem is likely with the phone’s internals or firmware rather than external charging gear.

Not just one model instance

Both the iPhone 17 Pro and iPhone 17 Pro Max appear to be affected, based on multiple owners posting about it on forums like Reddit and Apple’s Support Community. Affected individuals have tried multiple units, including replacements, and some still encountered the noise.

That consistency among users suggests it’s not confined to a single defective batch. Community posts and forum threads have led to speculation that the cause may be software-related or a design-level hardware interaction, but no definitive root cause has been confirmed.

Occurs with or without audio

Many users note that the hiss or static doesn’t require active audio playback to occur; it can happen even with no media playing. Most reports describe hearing it with the phone idle or playing content at very low volume while charging.

Some owners have said it sounds like interference or a grounding artifact. Others compare it to low electrical noise rather than typical speaker output.

Apple support is aware

Several users who contacted Apple Support say the issue has been escalated to engineering teams after initial reports. Apple engineers reportedly acknowledged that multiple customers have experienced the sound, though no official fix has yet been released.

If the cause is software-related, an iOS update could address it. There is no public evidence yet that previous iOS updates fixed the issue.

Software fix is hoped for

Observers and some users believe the hiss could originate from software, such as power management, audio driver, or current control behavior.

If so, Apple may fix it through an iOS update rather than hardware recalls. Some community members speculate that a future iOS point release might include a remedy, but there is no official confirmation of a version or timeline.

Some users traded units

A few owners who attempted device exchanges reported that even replacement phones exhibited the same hissing noise. This experience has led to speculation that the problem may be systemic rather than a sporadic hardware defect.

Apple’s replacement units appear to reproduce the issue under similar charging conditions. This pattern makes it less likely to be isolated to a single flawed component.

Hiss varies with context

Reports indicate the noise varies by situation: some hear it only while charging and actively scrolling or interacting with the phone. Others mention hearing it when idle. It’s generally more noticeable in silent environments.

The variability has contributed to mixed user reports; some owners never hear it at all, while others encounter it frequently. This suggests the issue may be related to workload and power flux during charging.

Community discussion grows

Online forums like Reddit and Apple Support Community host numerous discussions about this noise. Threads include anecdotal testing, observations under different chargers, and attempts to isolate the sound’s source.

Some users theorize electromagnetic interference or speaker coil issues, while others lean toward software or grounding behavior. There is no consensus yet, but community interest has kept attention on the matter.

Not yet widespread official response

Despite multiple user reports, Apple hasn’t issued a formal public announcement about the speaker hiss. Any official acknowledgment remains confined to internal support channels.

Apple engineers are reportedly investigating, but users continue to await a public statement or update. This lack of formal communication keeps speculation open on whether the fix will be firmware-side or require service intervention.

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Subtle but real phenomenon

The reported hiss or static noise while charging doesn’t seem to affect core performance, calls, apps, or battery charging, but it’s noticeable enough to concern some buyers. Users sensitive to audio or those often charging in quiet settings may find it distracting.

For now, unplugging the charger stops the noise. Most observers suggest waiting for an iOS update before pursuing replacements, unless the sound bothers you significantly.

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Have you experienced strange charging noises on any smartphone, and how did you handle it? Tell us in the comments.

This slideshow was made with AI assistance and human editing.

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