To fix the enter password to unlock 30/30 attempts remaining, follow the simple steps given here:
1. Patiently wait for the time-out to complete
2. Use the backup PIN or password
3. Reset the password using the associated Google account
4. Factory reset your mobile
5. Use of third-party software
To Read More:
https://onewebinc.com/enter-password-to-unlock-30-30-attempts-remaining/