Check Account Settings:
• If you’re using an email account (e.g., Yahoo, Gmail) to sync your reminders, there might be a conflict.
• Go to Settings > Mail > Accounts.
• Select your email account and toggle Reminders off, wait a moment, and then toggle it back on.
• Alternatively, if you no longer use that account for reminders, consider removing it from the Reminders app.
2. Restart Your iPhone:
• A simple restart can often resolve temporary glitches.
• Press and hold the side button and either volume button until the slider appears.
• Drag the slider to turn off your iPhone.
• After the device turns off, press and hold the side button again until the Apple logo appears.
3. Update iOS:
• Ensure your iPhone is running the latest version of iOS, as updates often include bug fixes.
• Go to Settings > General > Software Update to check for and install any available updates.
4. Reinstall the Reminders App:
• Deleting and reinstalling the app can help resolve issues.
• Press and hold the Reminders app icon until it jiggles, then tap the X to delete it.
• Visit the App Store, search for “Reminders,” and reinstall the app.
5. Reset All Settings:
• This won’t delete your data but will reset system settings like Wi-Fi passwords and wallpapers.
• Go to Settings > General > Reset > Reset All Settings.
6. Check Date and Time Settings:
• Go to Settings > General > Date & Time.
• Make sure Set Automatically is turned on. This ensures that your iPhone’s date and time are in sync, which can prevent issues with time-based reminders.
• If it’s already on, try toggling it off and on again.
7. Contact Apple Support:
• If the issue persists after trying the above steps, it may be best to contact Apple Support for further assistance.