[10 Ways] Fix iPhone Alarm Not Working iOS 17/16/15

What could you do when iPhone alarm not working normally? Top 10 ways and the professional iPhone data management tool are listed here to help you solve the problem.

Kathy by Kathy Updated October 7, 2023
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iPhone 14 alarm not working.

The alarm clock on my iPhone 14 isn’t working the way it should. The display on the screen looks normal, but there’s no alarm sound coming out of my iPhone.

- Question from MacRumors

Why is the iPhone alarm not working?

The Alarm feature on iPhone allows users to set alarms for various purposes, such as waking up in the morning, reminders throughout the day, or alerts for specific tasks. However, sometimes you will find that alarms on the iPhone don't work as expected or alarm not going off after update, which can disrupt your scheduled events.

This issue can occur for several reasons.

⛔ Your iPhone's volume is turned all the way down, or you enable the silent switch.
⛔ Software glitches or bugs can affect the functioning of alarms.
⛔ If you're using a third-party alarm app, it might have its own settings.
⛔ Incorrect Alarm settings on your iPhone.
⛔ Your iPhone's battery is critically low.
⛔ Wrong alarm tone and volume settings.

How to fix alarm not going off iPhone iOS 16/17/15

Now you can try these ways one by one to check which is the most useful way for you. Before proceeding, it's a good idea to check the battery level on your iPhone to ensure that the alarm not working is not due to a low battery.

Method 1. Check the silent switch and volume level

To begin, you can verify your iPhone is not in silent mode by checking the orange line next to the silent switch is not visible.

silent switch

Note: If your silent switch is enabled and you can’t turn it off normally, please find solutions in the passage to solve the problem: [8 Ways] Fix iPhone Silent Switch not Working

Then verify if the volume is sufficiently high to rouse you from sleep: Go to Settings > Sounds or Sounds & Haptics and make sure the Ringer And Alerts slider is set to a reasonable volume.

And there is an option called Change with Buttons, which you should deactivate to ensure that the ringer and alarm volume remain unaffected when you adjust the system volume using the buttons.

Method 2. Check the Alarm time settings

If your alarm doesn't activate at the scheduled time, you may have incorrect settings for the time or day.

To address this, open the Alarm section of the Clock app > Tap the targeted alarm and select Edit Repeat. Simply tap a day to enable or disable the alarm for that specific day.

edit alarm settings

Method 3. Delete some third-party apps

If you're experiencing issues with the stock Clock app on your iPhone, it's possible that some third-party alarm apps may be conflicting with it. To troubleshoot this, you can try deleting those third-party apps to see if it solves the problem with your iPhone's alarm.

Method 4. Disable or change the Bedtime feature

If you have the Bedtime feature enabled on your iPhone, it's possible that it could conflict with your regular alarm if they are set for the same time. Then you can open the Clock app and tap on Bedtime at the bottom of the screen. From there, you can either disable Bedtime or adjust the time by sliding the bell icon to a different time.

set up bedtime

Note: If you don't see the Bedtime option at the bottom of the Clock app, it may have moved to the Health app, especially in iOS 15. You can check the Health app for sleep-related features and settings.

Method 5. Delete and recreate an alarm on iPhone

You can also delete all alarms and close the app. Then reopen it and create a new alarm to check if the iPhone alarm not working issue has been fixed.

How to force exit an app:

For iPhone 8 and earlier models: Double-press the Home button and swipe away the Clock app from the top screen to force close it.

For iPhone X and newer models: Swipe upward from the bottom of the iPhone's screen to go to the multitasking view > Find the Clock app among the running apps and swipe it away to close it.

Method 6. Disable Bluetooth and unplug headphone

If you find that your iPhone alarms are not ringing through the device's speakers and are instead playing through Bluetooth devices or headphones, it might be due to a software bug or erratic behavior. Then you can open the Settings app > Tap on Bluetooth and toggle it off.

disable bluetooth

Additionally, unplug any headphones or audio accessories that are attached to the headphone jack.

Method 7. Restart your iPhone

At times, restarting your phone may also help.

For iPhone X/11/12/13 or later: Press and hold either volume button and the side button simultaneously until the power-off slider appears > Drag the power-off slider to the right to turn off your device.

restart iPhone

For iPhone 6/7/8 or SE(2nd or 3rd generation): Press and hold the side button until the power-off slider appears on the screen > Drag the slider to the right to power off your iPhone.

For iPhone SE (1st generation), 5, or earlier: Press and hold the top button > When the power-off slider appears, drag the slider to turn off the device.

After that, press and hold the side/top button until you see the Apple logo to turn on your iPhone.

Method 8. Reset all settings

You can also choose to reset all settings on iPhone to solve the problem: Go to Settings > General > Reset > Click Reset All Settings to make it. This operation will reset all settings on your phone to their defaults but won't delete any data.

Method 9. Update iOS

If there are any glitches or bugs within your apps or iOS system, then you can update the software on iPhone to fix them: Go to Settings > General > Choose Software Update. If there is any update available, click Download and Install to make it.

update software

Tips: If your iPhone is unable to check for update, find solutions in this passage: 9 Ways to Fix iPhone/iPad Unable to Check for Update

Method 10. Factory reset your iPhone without losing data for free

If you've tried ways and still encounter the problem. Then you can factory reset your iPhone to solve it. With the all-in-one iPhone data management app - FoneTool, you can fully back up your iPhone at a super-fast speed and wipe all your iPhone data in one click.

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Fully Backup iPhone

Step 1. Launch FoneTool on your PC > Connect your iPhone to the computer with a USB cable.

Step 2. Choose Phone Backup > Full Backup and click Get Started. (You can also choose Selective Backup to back up your photos, videos, music, contacts and messages on iPhone.)

start to fully back up iPhone

Step 3. Check Enable Backup Encryption as you like. Then select a storage path to save the backup and click Start Backup to begin the task.

confirm to back up

Now you can easily erase your iPhone to fix the issue.

Factory Reset iPhone

Step 1. Click Toolbox > Choose Data Eraser.   

data eraser

Step 2. Choose Erase all data and tap Get Started. (You can also choose Erase private data to delete documents and data on iPhone.)

erase all data

Step 3. Check the instructions on the screen > Tap the Erase Data button to confirm the choice.

erase all iPhone data

After the erasing, the issue may be solved. Then you can go to Backup History and click Restore dot to restore your iPhone backup.

restore backup


That’s all about how to fix iPhone alarm not working issue. Hope you can solve the problem successfully. And you can use the professional - FoneTool to help you fully back up and reset iPhone. With this rich-feature and wide-compatibility app, you can also access iPhone photos on iPad.


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