Hello lzzie9521,
Welcome to Apple Support Communities!
If we understand your post correctly, since your phone was recently updated and since then it's not displaying notifications when the phone is unlocked but are getting them when the phone is locked. We're happy to help!
We see that you've already tried some great troubleshooting steps!
The steps and information below can help with this issue:
To get notifications, connect to a Wi-Fi or cellular network. If you still don't get notifications for a specific app, try these steps:
- Make sure that the app supports notifications. Go to Settings > Notifications, select the app, and make sure that Allow Notifications is on.
- If you have notifications turned on for an app but you're not receiving alerts, you might not have Banners selected. Go to Settings > Notifications, select the app, then select Banners.
- Make sure that you’re signed in to your Apple ID.
- Make sure that Do Not Disturb is off.
- If you’ve recently installed an app or restored from a backup, open the app to start getting notifications."
Use notifications on your iPhone, iPad, and iPod touch
If you're still having issues we recommend contacting Apple Support directly.
Get Support
Take care!