How to Fix Galaxy S25 Ultra Notifications Not Working After Update

Galaxy S25 Ultra Notifications Not Working After Update is usually caused by a bad settings change, corrupted cache, or a software process that broke right after the latest update.

If alerts are delayed only for messaging apps, also read How to Fix Galaxy S25 App Notification Delays for WhatsApp, How to Fix Galaxy S25 Notifications Not Working After Update, How to Fix Galaxy S25 Texting Problems, and the Galaxy S25 hub.

Fix #1: Recheck notification settings for the affected apps

Major updates can reset app categories, sounds, badges, and lock screen alerts.

1. Open Settings > Notifications > App notifications.
2. Turn notifications on for the affected apps.
3. Open each app category and make sure sound, pop-up, and lock screen alerts are enabled.

Fix #2: Remove important apps from Sleeping and Deep Sleeping lists

Samsung battery management often blocks push alerts in the background after updates.

1. Go to Settings > Battery > Background usage limits.
2. Remove affected apps from Sleeping apps and Deep sleeping apps.
3. Set those apps to Unrestricted battery use where available.

Fix #3: Turn off Do Not Disturb, Modes, and notification filters

Profiles carried over from an update can silence alerts without making it obvious.

1. Open Settings > Notifications > Do not disturb and turn it off temporarily.
2. Review Modes and Routines for work, sleep, or driving modes.
3. Check that lock screen notifications are allowed.

Fix #4: Clear cache for the app that is not alerting

Corrupted app data can break push token registration after a firmware change.

1. Go to Settings > Apps > choose the affected app > Storage.
2. Tap Clear cache.
3. If needed, tap Clear data, sign back in, and test notifications again.

Fix #5: Update Google Play services, carrier services, and Samsung apps

Many notification problems are caused by outdated background services rather than the app itself.

1. Open the Play Store and update Google Play services-related components, your apps, and carrier services if listed.
2. Open Galaxy Store and install Samsung app updates.
3. Restart the phone after updating.

Fix #6: Reset app preferences

This restores disabled system handlers without deleting your personal files.

1. Open Settings > Apps.
2. Tap the three-dot menu and choose Reset app preferences.
3. Confirm, then test notifications again.

Fix #7: Reset network settings if alerts fail on Wi-Fi and mobile data

Push delivery can fail when network configuration is broken after an update.

1. Go to Settings > General management > Reset.
2. Tap Reset network settings.
3. Reconnect to Wi-Fi or mobile data and test again.