It sounds like your iPhone settings may need some adjustments to get back to the behavior you prefer. Let's go through a few steps to troubleshoot and potentially fix the issue:
1. Check Notifications Settings
Ensure your notification settings for Messages are properly configured.
Open the Settings app.
Scroll down and tap on "Notifications.
Tap on "Messages."
Make sure that "Allow Notifications" is turned on.
Under "Alerts," check that notifications are enabled for the Lock Screen, Notification Center, and Banners
Scroll down and make sure "Show Previews" is set to "When Unlocked" or "Never" according to your preference.
2. Check Messages Settings
Verify your settings within the Messages app.
Open the Settings app.
Scroll down and tap on "Messages."
Check that "iMessage" is turned on.
Scroll down to "Notifications" and ensure settings are configured correctly.
Reset All Settings
Since resetting settings previously helped, you might try this again. This won’t delete your data, but it will reset system settings like Wi-Fi passwords and wallpapers.
Open the Settings app.
Tap on "General."
Scroll down and tap on "Transfer or Reset iPhone."
Tap on "Reset."
Select "Reset All Settings" and confirm.
4. Software Update
Ensure your iPhone is running the latest iOS version.
Open the Settings app.
Tap on "General."
Tap on "Software Update" to check for any available updates.
Contact Apple Support
If the issue persists, it might be worth contacting Apple Support as there could be a bug or specific issue with your device.
Following these steps should help you restore the notification behavior you prefer on your iPhone.
