iPhone alarm is silent randomly

kaylin179 wrote:

I’ve had this same problem. I have class at 9 every morning and have about 6 alarms set for the hour between 7:30 and 8:30.

Are you snoozing any of the alarms? If so, that could be part of the problem. If the snoozed alarm goes off at the same time as the next alarm, they may both be silenced.

Is it possible that the alarms only go off for a certain amount of time before they silence? I’m not sure but I’ve missed way too much stuff to rely on this again

If the alarm is working correctly, it will continue to go off until you turn it off.

Try deleting all of the alarms. Then set up one or, at most two. Test.

Edit:

I just performed a test and was able to replicate a scenario where the alarm goes off but is silent yet remains shown on the screen. I set up an alarm to go off on my phone. Immediately once the alarm began sounding on my phone, I called my phone with my wife’s phone, and her call muted my alarm but the alarm remains on screen. I repeated this test multiple times and got the same result. I did some more testing, and found that putting the phone into “do not disturb” mode will not interrupt my alarm. Hopefully this works when receiving texts or other notifications as well.

Just did chat again. Recommended resetting my settings. Will try again later.

i started closing all of my apps every night before I sleep about 6 weeks ago and have not had the silent alarm since.

Should not have to do this, but it works for me.

Close all apps before you sleep. This was my fix. Zero problems with alarm since I started doing this a couple months ago.

So far , the 13.1.3 ios update has prevented the recurrence of this issue on my iphone x. 13.1.2 still presented a problem and I was ready to switch away from iphone.

Okay is it just alarms that aren't sounding? Or is it something else as well?

This article may help:

If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support

I had the same problem till I realized the bedtime app shuts off everything to provide you with the amount of sleep time you scheduled. No alarms or anything.

My newest problem is that whenever a notification comes in my alarm shuts off or snoozes. I changed my Do Not Disturb to 10 minutes after last alarm in hopes that helps.

In addition to the suggestion that we've been making for a long time that you periodically clear out your alarms, I recently read another interesting one. Set a second alarm for one minute later than the first alarm.

So glad I found this discussion. I'm a QA Engineer and for the past 3 months I've been dealing with the same problem with a 3rd party alarm app (has a lot of dependencies with apple's own software). Like somebody already said, this issue has many forms. It can be user related (alarms overlapping, device sound settings etc) or iOS software related. I've been trying multiple testing scenarios over the past 3 months and my conclusion is this: Randomly, and pretty seldom (for the most users during night-time ) the whole device sound system suffers a crash (or not necessarily a crash but an error of some kind) and due to this error the alarm will not make any sound. But hear me out, this is where it gets interesting; In a lot of scenarios I had more than one alarm in the morning set to, say, 6.00 and 6.30. In most cases the 6.00 alarm did sound and after stopping it, the 6.30 alarm did not sound (which for me is quite peculiar because the error should also affect the first alarm and not only the second one). However, if the device is brought close to the ears, a very low hissing sound can be heard with consistent frequency for the alarm that did not sound (or as some other users pointed out, no hissing sound but a very very low alarm volume). I'm still trying to get consistent reproduction steps for this. I think Apple is aware of this issue but because it happens so randomly and has a lot of different occurrences it's pretty hard to troubleshoot.

OK I think I figured it out. First turn off bluetooth in the control screen, second make sure your phone is not screen side down. When your phone is face down on your bed or floor or nightstand the radius sensor on the screen side triggers, because it “thinks you are on a phone call” and it sounds a silent alarm so it doesn’t blow your ears out. This is why you see so many people say that the first alarm works but the second one doesn’t because they’re sitting there phone down on the nightstand screen side down and then alarms wont work.

Resetting my phone's firmware resolved it for me.

My audio for alarm stopped working also, about a week ago, it just stopped.

I deleted the alarms and set them up again, used different sounds, nothing works to allow sound.

Turning the mute switch off will work - but I do not want to hear all the other alerts while sleeping

douglas2010 wrote:

I don't believe "Apple" reads or monitors this discussion forum. Everyone who has had this alarm problem should contact Apple Support and let them know it is a problem.

I believe that very fact has been mentioned several times in this thread. This is a user-to-user forum. Apple's participation is limited. You can contact support using the "Contact Support" link in the upper right corner of every page of these forums.

You can also let Apple know your thoughts here:

Product Feedback - Apple

This has happened to me lots of times. I plug my phone on charge and missed all the alarms, the phone won’t vibrate or make any sound, even if you try to make a call where is no sound but some static sound. Rather is no key tones when you press the passcode to unlock the phone and the only way to get any sound back is to turn the phone off and on again. I’m on the latest software and my volume is on full and I never use do not disturb at all.