You set an alarm on your vivo S50, go to sleep, and then wake up late because nothing rang.
That can ruin your schedule instantly.
If your alarm is not going off, the problem is usually tied to volume settings, Do Not Disturb mode, battery restrictions, or the Clock app itself, and the fixes are straightforward once you know where to look.
Why Your vivo S50 Alarm Is Not Going Off
- Alarm volume is set too low or muted.
- Do Not Disturb mode is blocking sound.
- The phone is powered off or restarted overnight.
- Battery optimization is restricting the Clock app.
- The alarm was set for the wrong day or time.
Check the Alarm Volume
Your alarm uses a separate volume level from media and ringtone. If this is turned down, the alarm may technically ring but you will not hear it.
Open Settings, and then tap Sound and vibration.
Tap Volume, and then increase the Alarm volume slider.
Lock your phone and test the alarm with a short timer.
Turn Off Do Not Disturb
Do Not Disturb can silence calls and notifications, and on some setups it may interfere with alarm behavior. Disabling it ensures the alarm can sound without restrictions.
Open Settings, and then tap Do Not Disturb.
Toggle it off, and then check the scheduled time if it turns back on automatically.
Test the alarm again to confirm it works.
Disable Battery Restrictions for Clock
Aggressive battery management can stop background apps from working properly. If the Clock app is restricted, alarms may fail to trigger.
Open Settings, and then tap Battery.
Tap Background app management, and then find Clock.
Set it to Allow background activity so it can run freely.
Make Sure the Phone Is Not Powered Off
Alarms will not go off if the device is completely turned off. Some users power down their phone at night without realizing this disables alarms.
Press and hold the Power button, and then confirm the phone is on.
If needed, restart the device before sleeping.
Set a test alarm for a few minutes ahead to verify.
Check the Alarm Schedule
It is easy to accidentally set an alarm for the wrong day. Double checking avoids silent mornings.
Open the Clock app, and then tap Alarm.
Select your alarm, and then confirm the correct time and repeat days.
Make sure the toggle beside the alarm is switched on.
Missing an alarm can feel stressful, but most issues on the vivo S50 come from simple settings. Once you adjust the volume, remove restrictions, and confirm the schedule, your alarms should work reliably again.
FAQs
Will my alarm ring if my vivo S50 is on silent mode?
Yes. Alarms usually bypass silent mode, but the alarm volume must still be set high enough to hear.
Does Do Not Disturb block alarms on vivo S50?
In most cases alarms still sound, but custom DND settings or third party apps may interfere. It is best to disable it when troubleshooting.
Do alarms work when the phone is switched off?
No. If the vivo S50 is fully powered down, alarms will not trigger. The phone must remain powered on.
