iPhone 17 Pro Max – Static / hissing noise from speaker while charging

I’ve noticed a strange issue on my iPhone 17 Pro Max and I’d like to know if anyone else can reproduce it.


When the phone is plugged in and charging, if you play some audio (for example a song, an Instagram Reel, or TikTok), turn the volume all the way down to mute, and then put your ear close to the bottom speaker, you can hear a faint static, buzzing, or hissing noise, similar to the sound of an old radio.


I’ve tested this with both an official Apple cable and charger, and the issue is still present. This sound can also be heard even when no audio is playing, although it’s a bit quieter in that case.


I’m curious if this is a widespread issue or specific to my device.

iPhone 17 Pro Max, iOS 26

Posted on Sep 22, 2025 1:51 PM

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28 replies

Sep 24, 2025 1:07 AM in response to MrWolfery

Same problem. But to test it people have to use their phone, open apps like TikTok for example, but with sound lvl 0 (no sound, off). If your phone is plugged, and even more if you’re charged at max level (with a limit or not doesn’t matter), you will hear the buzzing noise from the left speaker even louder. It’s like if the speaker was on, able to produce sound, but since your sound level is at 0, there’s just a hissing noise. If you scroll TikToks with no sound you will hear it even more. Phone off, or just on but without using anything or any apps, it will still be there but in a faint way, barely noticeable. Try again please. Of course in a quite room it’s better.

Sep 24, 2025 3:22 AM in response to MrWolfery

I have this problem on the 17 Pro Max (512), and I reported it to Apple Support today. I also shared links to this discussion and another one on Reddit. I was asked to record these sounds if possible.


For me, there are two situations. The first is a sound coming from the back, in the middle of the camera island, when opening the Camera app. It is a constant hum that starts and stops when the Camera app is launched or closed. I recorded it by holding the phone close to the microphone of my iPad Pro, and by repeatedly opening and closing the Camera app the hum and its absence were distinguishable. Additionally, when recording video directly on this iPhone (in quiet conditions at home), the sound is also audible during playback.


The second is the one mentioned here, a sound I call a "burning candle" coming from the left speaker while charging. I also managed to record it in a similar way as before, by plugging and unplugging the cable.


I’m supposed to get another update tomorrow before it gets escalated further.

Sep 23, 2025 8:07 AM in response to ChrisJ4203

After doing more research, I’ve noticed that many people are experiencing the same issue (even those who exchanged their phones, with the problem still persisting). It seems to be faint, but it is present. I also checked the display units at my local Apple Store, and they had the same issue. It occurs on both the bottom and top speakers. To notice it clearly, you need to be in an absolutely silent room. For example, if you plug in your phone, place your ear near the speaker, and then scroll through TikTok without sound playing, the static becomes more noticeable.


I’ve already contacted Apple Support, but they don’t seem to be aware of this issue yet. I suspect it might be a software-related bug with this year’s iPhones that could be fixed in a future update.


When I visit the Genius Bar, I’d prefer to receive a replacement rather than return the device, in case it is considered a defect. My concern is that I don’t know whether replacement stock is separate from the store’s regular inventory. Is there any way to check in advance? Alternatively, can the Genius Bar reserve an iPhone 17 Pro Max with the same configuration for me so I can do a direct exchange, without going through the 14-day return, refund, and re-ordering process?

Sep 22, 2025 2:02 PM in response to MrWolfery

I'm sorry, this is the first time that I've seen this. I tried to duplicate your issue with my iPhone 17 Pro Max and was unable to hear the noise you describe. I couldn't hear anything, sorry. You are welcome to contact Apple Support or make a Genius Bar appointment at the nearest Apple Store to have them listen if you can duplicate the issue. If you purchased from an Apple Store, you have 14 days to return the device, no questions asked.

Sep 23, 2025 1:35 PM in response to MrWolfery

Replacement stock is separate from retail stock. I understood what it was that you reported and did the best I could to duplicate your issue. The only thing I can say that I didn't do was use TikTok and never would have that on my device. I used Music and made several attempts with different music. Anything is possible, but I could not duplicate it on my device. If you do not want to see about a replacement that is up to you. You can wait to see if a software update would fix it. The Genius Bar cannot do anything with retail stock. You could ask the manager if they have a device like yours in stock and you could go in and make the return and purchase stock at the store, but I'm not sure if they would do that. Only the store management could answer that question. Good luck.

Sep 25, 2025 7:06 AM in response to frost295

That's good! I had a second scheduled call today, and they escalated my issue further, collected extended data from the iPhone, and forwarded my recordings of the noises. This is likely a software issue. It will take about four days to get a response from the developers.


The only thing is, I don't know what will happen with the noise coming from the back of the plateau (Camera), because the Apple employee prioritized the sound from the speaker next to the charging port. I'll definitely keep an eye on this.

iPhone 17 Pro Max – Static / hissing noise from speaker while charging

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