How to unlock Android without internet
In case you cannot unlock your Android device because you don't remember the password or the unlock pattern, and you cannot connect to the internet, then you will have to follow the process described below.
To unlock your Android device without internet:
If you still have an internet connection and have linked a Google account to your Android device, you will be able to unlock it even though you don't know your password or the unlock pattern.
Otherwise, If you have forgotten your code or pattern and cannot unlock your phone with your Google account because you have no internet, then you will have to reset your Android device to factory settings.
Make sure you need to unlock it now and cannot wait for the internet as you will lose all your data after the resetting process.