iOS 17 iPhone Alarm Turns Off with StandBy Mode

Possible fix (work around) got this from Reddit and seems to have worked for me.

Settings —> Accessibility —> Face ID & Attention —> Attention Aware Features OFF.

before this - was getting no alarms in standby mode, turned off standby and it worked fine. Really annoying as using in conjunction with Apple Watch and that wasn’t vibrating as it usually does with alarm in silent mode

changing the above setting makes alarms work again with Standby Mode: On.

Apparently “It thinks you are looking at the phone when the alarm goes off, so it silences it immediately”

the AttentionAware setting stops this happening ..or that’s theory anyway

Thread https://www.reddit.com/r/iphone/s/2eHECJF3GE

Solved.

I had this problem for ages and was happy to see that other people were having the same problem.

Then my wife started using standby mode and her alarm worked fine.

The problem was I had my alarm set to vibrate and hers was set to make a noise.

I changed mine to play a tune and now it works fine.

Hope this helps.

💡 Solution: In order for morning alarms to ring while your iPhone is in StandBy Mode, make sure to set a “Sleep | Wake Up” alarm in the Clock or Health App for the time you want instead of setting a normal alarm. This worked well for me. The alarm plays loud and clear and the UI in StandBy includes a large snooze button, stop button, and even a nice good morning message. Hope that helps! :)

Finally, the FIX is…. Lie your phone flat and snooze works fine.

Put it at an angle, it looks fine but you need to use it as a traditional clock, ie don’t pick it up, just press the snooze.

what I think Apple needs to do is to add something that can disable the “pick up” alarm cancel.

Hope this helps

Well i am happy to report that (at least in my case) 17.1 update seems to resolve the issue with alarms not going off in standby mode. It now works perfectly for me. One note - i do not use snooze function, so i can not comment on that. I prefer to have multiple alarms set without snoozing 😴 🙂

It's motion detection that turns off the audible portion of the alarm but still displays the stop or snooze button. I have overslept my alarm a couple times now while using standby and just figured out its because of the motion detection. I did a test where I turned my stand around to face the wall and the alarm sound was working just like it was supposed to and when I spun it around the sound shut off. I also reset the alarm again facing me and when it started to go off I waved my hand about a foot from the screen it shut the alarm sound off again.

I have looked for a setting to fix but can't seem to find one. Looks like I will have to go back to not using the standby mode. I loved the alarm clock on the phone but until they fix the issue I won't be using standby mode.

Last night I've leaved charging Vertical and alarm workded fine, will do this untill Apple fix it

100% agree. This was driving me crazy. Initially I thought I may have accidentally hit the off button instead of snooze. In nightstand mode these buttons a comically large, so I carefully tapped snooze.

No snooze.

It is currently impossible to snooze an alarm in nightstand mode.

must fix apple.

If you believe there is a problem with iOS or if you have other feedback or suggestions, you should let Apple know, regardless of what other people do. The number of people reporting an issue or complaining about a feature informs how Apple deals with it. More data is good.

Start here:

Product Feedback - Apple

I have had this happen once. Iphone Xs (my 15 isn’t here yet) in landscape for the first time overnight. It was the first time I used standby mode overnight. Missed getting up by 30 mins, woke to find a prompt on the phone that indicates the alarm is going off. But its actually completely silent.

Completely beyond me how this gets through a beta to public release.

Disabled Standby and put the phone back in portrait overnight. Worked. Getting some trust back. I won’t be using standby until I have seen positive news on this one, shocking stuff, alarms are basic.

Yes… this is the issue I thought I was having! I just tested it out tonight. I set two alarms one minute apart and put my phone on the charger in landscape orientation so it would go into StandBy. The first alarm went off just fine… I could stop or snooze; however, after stopping the first alarm, my HomePod controls pop up and, when it’s time for the second alarm to go off, the alarm sounds for 1/4 of a second and then stops completely (not even enough time to notice it was going off if I had been fast asleep)! I wake up at 2:45am for work and this has been happening for a while and I thought I was just sleeping through my alarms or snoozing them from my watch, but glad to know that it’s just a glitch. Won’t be using StandBy for a while!! Hopefully there’s a fix coming soon, I really like the feature.

…or just turn off stand by until the fix🙂

i think this is the better spot since it’s specific to iOS bug reporting. Feedback - iPhone - Apple

This is a serious issue that has to be addressed. Currently, it’s impossible to snooze an alarm once you touched your device. StandBy just cancels it.

Since StandBy gets automatically hidden once the device is picked up, the regular alarm overlay should be displayed.

I'll keep StandBy off until this issue gets fixed - I actually need to wake up in the morning.

I ran some tests on this issue because I was having it too. I found that background apps, air pods, music didn’t affect the alarms in standby mode.. but notifications definitely did. If I have a text on the screen in standby mode then the alarm won’t sound. That’s the only way I’ve been able to replicate a failed alarm so far.