New password on notes app wont work
My new password wont work on an already existing locked note, also face id isn’t working when i try to unlock it. What can i do?
From the article below.
Reset your notes password if you forgot it
To unlock a note, you need to enter the password that it's locked with. If you forgot your notes password, Apple can't help you regain access to your locked notes. You can create a new notes password or use your device passcode instead, but this won’t give you access to your old notes. If you set a new notes password or switch to your device passcode, you can protect any notes that you create going forward with the new password.