iPhone volume decreasing on its own

Turning off Headphone Accommodations solved it for me as well!

Thanks @brye193

I’ve done two things that seems to have worked:

1. Restart your iPhone: turn your iPhone off and wait for at least 30 seconds, then restart your phone. I do this before charging my phone.
2. Reinstall iOS: I downloaded the ipsw file of the iOS version on my phone and reinstalled it. A re-install, as opposed to a restore, will keep all your data on your iPhone.

I’ve only reinstalled iOS only once but continue to restart my iPhone before charging. I’ve been doing this for about a week and haven’t seen the issue in question since.

i had just installed the Dexcom app and thought I had turned off all notifications.

it appears the app wants me to calibrate my sensor and is still trying to alert me.

I’ll post an update tomorrow one I try playing music again pretty sure this is the issue.

Me too! I also having this problem right now. But, in my case, I using iPad Pro 2021.

So, as you know, iPad Pro 2021 released with USB-C port. I brought several option for solving this problem.

First, I bought an Apple 3.5mm Jack to USB-C adapter, and after several hours by pluging it in. The volume on my iPad decreasing on it's own. And I change the hearing device (my JBL T110 In-ear earphone) to over-ear headphone immediately. Unfortunately, my iPad need some times to insttal the headphone driver. But it had a very bad bad bad sound quality.

Second, I bought a USB-C in-ear eaprhone. It's solve the problem, but the sound quality is very bad and it has low volume output.

The third one, I bought an adapter, it was Ugreen USB-C female to Lightning male (Model : 70953). It has a great sound quality, and also solve the problem. Now, I am using original Apple wired earpods with this adapter. A little big and heavy for mobility, but it works perfectly fine without decreasing sound volume again.

So, in my opinion, maybe it is the connection problems, to any device that connect to your iPhone, which is wired or wireless. You can try to disconnect them (or uninstall them if necessary) and then try to connect it again.

Also you need to turn off this function (if you use iPhone or iPad with FaceID), see photo below.

Edit : I hope this will help you :)

You're safe to update to 15.7.5 at least.

I found a potential solution that seems to still be working for me. I went into sounds and haptics in the settings app, then toggled the play haptics for both ring and silent mode to off and also the System Haptics setting. I also went into Headphone Safety and turned on the reduce loud sounds. I then turned my phone off and then back on again. I enabled the settings again after turning back on and everything seems to work okay. It appears some settings bug was causing the issue for me at least.

@briley148 I don't think that Snapchat has anything to do with this topic

Thank you for the reply Bkush04!

This may seem like a simple step, but have you made sure your iOS is up-to-date? Updating your iOS can potentially resolve unexpected issues:

Update your iPhone, iPad, or iPod touch

If the issue persists, reach out to Apple directly to investigate:

Get Support

Cheers!

I agree with you vbarcelop. It always happens in the same specific places, even with location services turned off, so I think is somewhat related to base station hand off. Not all hand offs from one base station to another, but only some specific ones. That's why the problem always shows up in the same location. Sometimes a change from 4G to 5G or the other way around is involved exactly at the same time when the iPhone lowers the volume for 20 seconds and then comes up again. Now I am running iOS 15.6.1 and the bug is still there... Very annoying!!!

I don’t want to declare an early victory, but it looks like the bug is not present on iOS16.  I upgraded yesterday and today the

problem didn’t show up, even on the places where I know the bug was triggered on the previous firmware.  I will keep my

fingers crossed, but at least is a good start… If you also have this problem, my suggestion is to give iOS16 a try.

Hi Bkush04,

In my specific case, upgrading to iOS 16 solved the problem. At least until now. However, reading all the different replies on this thread, I think we are talking about a mix of different problems that happens to show similar symptoms. For that reason the different fixes suggested work for several cases, but not for all.

No matter playing music/YouTube using bluetooth headphone or by its own, my iPhone 14 Pro Max will suddenly lowered the volume by some 30s+. My fix is stop the music, lock the phone and then unlock, the sound will then resume normal. Better than nothing but super annonying!

Me too! I also having this problem right now. But, in my case, I using iPad Pro 2021.

So, as you know, iPad Pro 2021 released with USB-C port. I brought several option for solving this problem.

First, I bought an Apple 3.5mm Jack to USB-C adapter, and after several hours by pluging it in. The volume on my iPad decreasing on it's own. And I change the hearing device (my JBL T110 In-ear earphone) to over-ear headphone immediately. Unfortunately, my iPad need some times to insttal the headphone driver. But it had a very bad bad bad sound quality.

Second, I bought a USB-C in-ear eaprhone. It's solve the problem, but the sound quality is very bad and it has low volume output.

The third one, I bought an adapter, it was Ugreen USB-C female to Lightning male (Model : 70953). It has a great sound quality, and also solve the problem. Now, I am using original Apple wired earpods with this adapter. A little big and heavy for mobility, but it works perfectly fine without decreasing sound volume again.

So, in my opinion, maybe it is the connection problems, to any device that connect to your iPhone, which is wired or wireless. You can try to disconnect them (or uninstall them if necessary) and then try to connect it again.

Also you need to turn off this function (if you use iPhone with FaceID), see photo below.

Edit : I hope this will help you.

is your battery percentage below 50% when this happens? I was trying to find a solution for this same issue for almost a year now until I realized it only does it for me when my battery drops to half and quits doing it once I connect my charger.

Same here. Dexecom was sending an alert in the form of reducing the sound even tho I had turned off all motivation settings.

This did it! I turned off notifications on Dexcom and it was still trying to alert me. Deleted app and didn’t do it anymore

I've got the same issue on an iPhone 11 on 15.6 (though issue has been around for several updates).

Audio volume decreases for ~15 seconds and then increases again. There are no visible notifications that correlate, and no audio ding/sound besides the volume being dampened.

Happens when playing via Spotify, Music or Podcasts, and with no interaction with the device. Device is usually in my pocket with bluetooth earbuds, or connected to carplay and in a cupholder.

Sometimes will happen a couple of times in a short window (like twice in 10-15 minutes), other times 45mins to an hour between events.

Only thing I can think of is an app that is generating events, but without anything showing in the notification center or it playing a sound - very hard to debug short of disabling push for all my apps and slowly re-enabling them. I've just done that for all but a handful of the apps I use the most, will see if that helps.