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How to Fix iPhone alarm Not Going Off in iOS 12/11.4

by  Edwin J. Parke  |  Tuesday September-18 2018  13:26:53

I have an IPhone 8 plus, Why does my alarm not go off? It’s not just my alarm it’s my whole clock app it doesn’t work as in the alarm doesn’t ring and the timer doesn’t go off

Have you ever had such an experience: wake up in the morning and the alarm clock has not yet sounded, what in your minds may be that you could get more sleep. Take the phone to check how long you can sleep, and the result...My God! late already!

Well, nothing is more terrible than the horrible experience of iPhone alarm not going off. Unfortunately, a great many iPhone users are going through such a thing. If you find your alarm doesn't make a sound or rings at wrong time, you might as well try to solve it as follows:

1. For users who familiar with iPhone may know the truth that the iPhone alarm will not work after the phone is turned off. So remember not to shut down iPhone after settings the alarm.

2. Some users may have set the alarm, but forget to turn it on before going to sleep, which ultimately causing the alarm not working in the next morning.

3. Another point that requires everyone's attention is to ensure iPhone being fully charged after setting the alarm, or the alarm clock will automatically shut down due to the low battery power.

If none of these problems are found, some bugs may exist on your iPhone.

1. Adjust Volume Level

There are two different volume controls on iPhone: ringer volume and media volume. By default, ringer volume controls the system volume, like ringer, notifications, alarms, etc. while media volume affects the sound of media apps, like music, games, videos, etc. Ensure that the ringer volume is loud enough to wake you up. To set the ringer volume, you can:

  • Head over to Settings on iPhone.
  • Click on Sounds & Haptics.
  • Enable the option of Change with Buttons.

After the setting, you will be able to adjust the ringer (alarm) volume via the volume buttons on iPhone directly.

2. Reboot your iPhone

Most minor bugs on iPhone can be easily fixed through the way of rebooting. Follow the easy steps to start.

  • Press and hold the sleep and wake button at the same time until the home screen goes black.
  • Slide to power off iPhone.
  • Keep pressing the sleep and wake button to power it on.

restart iphone

3. Delete and Recreate All Alarms

Go to the Alarms tab on Clock app, click edit and minus button to remove each alarm. It will be time-intensive to delete all alarms from the Clock app. Or you can ask Siri for help: keep pressing the home button on iPhone until Siri appears, speaking ‘Hi Siri, delete all my alarms’ and click Confirm, Siri will clear all the alarms. Then click on the plus button on Clock App to create a new alarm.

4. Update iOS Firmware

Apple Inc consistently releases new iOS firmware to remove some unexpected bugs on previous firmware. Thus any updates on iOS firmware will greatly improve the system performance for iPhone. Check whether the iOS firmware is the newest one from Settings > General > Software update on iPhone. Click ‘Download and Install’ to install the newest iOS firmware if possible.

5. Reset iPhone to Fix Alarm Not Working

None of the solutions above resolve the issue? Rest all the settings for iPhone is also an useful tip to try. Resetting the iPhone will remove all the personal information on the device, such as notes, appointments and contacts. And the iPhone will be set to original factory settings as default. Remember to back up your iPhone with iCloud, iTunes or PC to save your data before resetting the iPhone.

To reset all settings on iPhone, go to Settings, click on General, find Reset option and tap ‘Reset All Settings’.

6. Fix iPhone Alarm Not Working with iOS System Recovery

Do you still hesitate to go through the 5th and 6th solution for the fear of data loss? iOS System Recovery can come in handy to solve most troublesome issues for your iPhone, iPad or iPad touch without losing data. In addition to fix iPhone alarm not going off, it also settles the issues of black screen, dfu/recovery mode, touch id, etc.  


  • Download and run the program, select ‘iOS System Recovery’.
  • Connect the device to pc and click Start button.
  • Tap on Repair to download the suggested firmware and wait for the process to be done.

fix iphone alarm not going off

You must have known what causes your iPhone alarm not going off and get the potential solutions to have it fixed. Pick the best one or share the better method to us if you have one.