You may have to try an external keyboard, as to check the keyboard settings you will need to enter the password first. We cannot assist with password issues. Please read the following thread about that...
http
/www.tomsguide.com/forum/id-2317976/read-passwords-lock-codes-pin-numbers.html
Once in, for the keyboard issue... Try the following and see if it helps.
1. Go into the "Settings" menu.
2. Locate and tap "Language & Input".
3. Location the "Language" and make sure that it is using your preferred one.
3. Next locate the "Keyboard & Input Methods" section and the "Default" keyboard your device is using
4. Tap the "Settings" for your default keyboard (often a gear icon).
5. Now go back to your "Home" screen and again tap...